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Marsh Heating and Air Conditioning

Why Lennox Heat Pumps Are a Smart Choice for Eco-Friendly Heating & Cooling

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If you’re looking for a cleaner, more energy-efficient way to heat and cool your home, it might be time to consider a Lennox heat pump. These advanced HVAC systems offer year-round climate control while dramatically reducing your environmental impact—and your energy bills.

As more homeowners prioritize sustainability and long-term efficiency, heat pumps have become one of the greenest HVAC solutions available today. And when you pair that smart technology with the proven performance of Lennox, you get reliable, eco-friendly comfort that lasts for years.

At Marsh Heating & Air Conditioning, we’re proud to offer high-efficiency Lennox heat pumps that are designed to keep your home comfortable through all four Minnesota seasons—while helping you reduce your carbon footprint.

🌎 How Heat Pumps Reduce Environmental Impact

One of the biggest advantages of a heat pump system is how it minimizes harmful emissions and energy waste. Unlike traditional furnaces that burn fuel to generate heat, a heat pump transfers heat using electricity—making it a more sustainable alternative to fossil fuel-based systems.

✔ No Combustion Emissions

Gas furnaces release carbon dioxide (CO₂) and other greenhouse gases through combustion. In contrast, heat pumps move heat rather than create it, meaning zero on-site emissions. This can make a big difference, especially if you’re looking to reduce your home’s overall environmental impact.

✔ Energy-Efficient Heating & Cooling

Heat pumps work by extracting heat from the air—even in cold temperatures—and transferring it indoors. In the summer, the process is reversed to cool your home. Because heat pumps move heat rather than generate it, they use significantly less energy compared to traditional HVAC systems.

Some Lennox heat pumps can deliver up to three times more heating energy than the electrical energy they consume—that’s exceptional efficiency with real savings.

✔ Compatible with Solar Energy

Lennox heat pumps can be paired with solar energy systems for an even greener solution. By generating your own electricity through solar panels, you can essentially heat and cool your home without increasing your utility bills or carbon output. This makes heat pumps a key part of any net-zero or energy-efficient home design.

🌱 Best Lennox Heat Pumps for Eco-Friendly Comfort

Lennox offers a variety of heat pump models that prioritize both performance and sustainability. Here are two top picks for Minnesota homeowners who want to maximize comfort while minimizing energy use:

🌿 Lennox SL25XPV – The Elite in Efficiency

This variable-capacity heat pump is part of Lennox’s Signature® Collection. It adjusts output in small increments to maintain the perfect indoor temperature with minimal energy waste.

  • Up to 24 SEER and 11.8 HSPF for outstanding efficiency

  • Variable-speed operation for ultra-quiet comfort

  • Works seamlessly with iComfort® smart thermostats

  • ENERGY STAR® certified for eco-conscious performance

🌿 Lennox EL18XPV – High Performance, Great Value

The EL18XPV offers smart performance at a more accessible price point, making it a great option for homeowners who want both comfort and value.

  • ENERGY STAR® certified

  • Compatible with solar and smart home systems

  • Delivers reliable year-round comfort with efficient operation

💚 Why Homeowners Love Lennox Heat Pumps

When you upgrade to a Lennox heat pump, you’re not just choosing a sustainable system—you’re also improving your home’s efficiency, comfort, and cost-effectiveness.

✔ Lower Energy Bills

Thanks to their high efficiency ratings, Lennox heat pumps often pay for themselves over time by reducing your monthly utility bills. In regions with moderate climates—or homes designed with good insulation—a heat pump can handle all your heating and cooling needs without the help of a backup furnace.

✔ Less Reliance on Fossil Fuels

Many homeowners are seeking ways to reduce their dependence on natural gas or oil. Heat pumps, especially when powered by solar energy, offer a future-proof solution for home heating and cooling that’s not tied to volatile fuel markets.

✔ All-Season Comfort

From summer heatwaves to snowy Minnesota winters, Lennox heat pumps are built to deliver consistent, reliable performance. Advanced models like the SL25XPV even include low-temperature operation technology, making them suitable for colder climates where traditional heat pumps might struggle.

🔧 Let Marsh Heating & Air Conditioning Help You Go Green

At Marsh Heating & Air Conditioning, we’re committed to helping our customers create healthier, more energy-efficient homes. With over 50 years of experience serving the Twin Cities, our team offers expert guidance, installation, and support for Lennox heat pump systems that fit your needs and your sustainability goals.

We provide:

  • Free consultations and system recommendations

  • Certified Lennox heat pump installations

  • Smart thermostat integration and solar-ready solutions

  • Maintenance plans to keep your system running at peak performance

📞 Call Marsh Heating & Air Conditioning today at 763.536.0667 or visit MarshHeating.com to schedule your consultation and start your journey toward eco-friendly, year-round home comfort.

How Preventative HVAC Maintenance Saves Your Business Money

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Maintaining a commercial HVAC system is one of the smartest investments a business can make. A well-maintained system not only ensures comfort for employees and customers but also significantly reduces operational costs. Here’s how preventative HVAC maintenance can save your business money in the long run.

Reduced Energy Costs

A properly maintained HVAC system runs more efficiently, using less energy to heat or cool your building. Simple tasks like cleaning coils, replacing air filters, and checking refrigerant levels can prevent excessive energy consumption, reducing your monthly utility bills.

Fewer Emergency Repairs

Unexpected HVAC breakdowns can be expensive, both in terms of repair costs and lost productivity. Preventative maintenance helps detect minor issues before they turn into costly emergencies, keeping your system running smoothly without sudden failures.

Extended Equipment Lifespan

Commercial HVAC systems are a major investment. Regular inspections, cleaning, and tune-ups help reduce wear and tear, extending the life of your equipment and delaying the need for expensive replacements.

Minimized Downtime and Business Disruptions

HVAC failures can disrupt business operations, causing uncomfortable working conditions and potentially forcing temporary closures. Preventative maintenance helps ensure uninterrupted service, keeping employees productive and customers comfortable.

Improved Indoor Air Quality

A poorly maintained HVAC system can accumulate dust, allergens, and mold, negatively impacting indoor air quality. Regular filter changes and system cleanings create a healthier work environment, reducing employee sick days and improving overall well-being.

Compliance with Industry Regulations

Many industries require businesses to meet specific air quality and HVAC performance standards. Routine maintenance ensures compliance with OSHA and other regulatory requirements, helping avoid fines or legal issues.

Protection Against Major System Failures

Major HVAC breakdowns can cost thousands of dollars in repairs or replacements. Preventative maintenance includes thorough inspections that help identify potential problems early, reducing the risk of catastrophic failures.

Better Budget Planning

With a scheduled maintenance plan, businesses can better forecast HVAC-related expenses instead of facing unpredictable repair costs. Knowing your HVAC system is in good shape provides financial stability and helps with long-term planning.

Increased Property Value

A well-maintained HVAC system adds value to commercial properties. Whether you plan to sell or lease your building, an efficient HVAC system can be a strong selling point for potential buyers or tenants.

Eligibility for Energy Rebates and Incentives

Many utility companies and government programs offer rebates or incentives for businesses that maintain energy-efficient HVAC systems. Keeping up with maintenance can make your business eligible for these cost-saving opportunities.

Protect Your Business with Preventative HVAC Maintenance Investing in regular HVAC maintenance is a cost-effective way to prevent unexpected expenses, reduce downtime, and improve energy efficiency. If your business needs a preventative maintenance plan, contact Marsh Heating & Air Conditioning today. With over 50 years of experience, we provide expert commercial HVAC solutions to help businesses save money and stay comfortable year-round. Call Today 763.536.0667

What Is an Air Handler? Why the Lennox CBK48MVT Could Be a Game-Changer for Your Home Comfort

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If you’re researching ways to improve your home’s heating and cooling efficiency, you’ve likely come across the term air handler. But what exactly is an air handler, and how can it make a difference in your comfort, air quality, and energy bills?

At Marsh Heating & Air Conditioning, we believe in helping homeowners understand the HVAC technology that powers their homes. That’s why we’re excited to spotlight the Lennox CBK48MVT, a top-performing air handler that brings exceptional comfort, quiet performance, and energy savings to any home.

What Is an Air Handler?

An air handler is a critical component of a heating and cooling system, especially in homes that use heat pumps instead of traditional furnaces. Think of it as the indoor companion to your outdoor unit. While the outdoor unit handles the heating or cooling of air (depending on the season), the air handler is responsible for:

  • Moving the conditioned air through your ductwork

  • Regulating temperature and humidity via built-in coils and fans

  • Filtering the air, improving indoor air quality

  • Working seamlessly with heat pumps to deliver year-round comfort

In short, an air handler makes sure the warm or cool air produced by your HVAC system gets where it needs to go—quickly, efficiently, and quietly.

Introducing the Lennox CBK48MVT: Advanced Comfort Starts Here

The Lennox CBK48MVT Air Handler is part of the Lennox Elite® Series, known for offering high-quality performance and smart technology integration. It’s specifically designed to work with communicating heat pumps, providing advanced features that set it apart from standard air handlers.

Here’s how the CBK48MVT stands out and why it may be the perfect addition to your home comfort system:

Key Benefits of the Lennox CBK48MVT

✅ Variable-Speed Technology for Consistent Comfort

Unlike traditional air handlers that turn on and off at full power, the CBK48MVT features variable-speed motor technology. This allows the unit to operate at multiple speeds depending on your home’s current temperature needs.

  • Maintains a more stable indoor temperature

  • Reduces humidity levels more effectively in the summer

  • Eliminates the hot and cold spots common in many homes

With smoother airflow and fewer temperature fluctuations, you’ll enjoy a more comfortable environment year-round.

✅ Quiet Operation

Thanks to its advanced motor and thoughtfully designed components, the CBK48MVT runs significantly quieter than standard models. This makes it ideal for households that prioritize peace and quiet—especially if your unit is located near bedrooms or living areas.

✅ Energy Efficiency that Lowers Bills

The variable-speed motor not only enhances comfort but also uses less electricity, since it doesn’t need to power on and off frequently like a single-speed unit. When paired with a high-efficiency Lennox heat pump, the CBK48MVT can help reduce monthly utility costs and maximize your system’s performance.

✅ Smart System Compatibility

This unit is fully compatible with Lennox’s iComfort®-enabled systems. That means it can communicate with smart thermostats to optimize comfort, energy use, and even maintenance notifications.

When connected with an iComfort® S30 or M30 thermostat, you can monitor and adjust settings from your smartphone, track energy usage, and receive alerts if something’s not quite right with your system.

✅ Improved Indoor Air Quality

The CBK48MVT is built to support air filtration enhancements that trap dust, allergens, and other pollutants. That means cleaner, healthier air throughout your home—especially beneficial for households with pets, allergies, or asthma.

Who Should Consider the Lennox CBK48MVT?

This air handler is ideal for:

  • Homeowners replacing an older air handler that’s inefficient or loud

  • New builds that will use a heat pump or hybrid system

  • Families looking to improve humidity control and energy efficiency

  • Anyone interested in smart home integration for their HVAC system

If your current air handler is struggling to keep up—or if you want to upgrade to a variable-speed system that enhances both comfort and savings—the CBK48MVT is an investment worth considering.

Trust Marsh Heating & Air Conditioning with Your Installation

As a Lennox Premier Dealer, Marsh Heating & Air Conditioning has the experience, tools, and training to install and service advanced air handler systems like the CBK48MVT. We’ll help you determine if this unit is right for your home and pair it with the ideal heat pump or hybrid system for maximum performance.

When you choose Marsh, you get:

  • Honest guidance on system compatibility and efficiency

  • Expert installation that meets all manufacturer and safety standards

  • Maintenance plans to keep your system running at peak performance

📞 Call Marsh Heating & Air Conditioning today at 763.536.0667 or visit MarshHeating.com to schedule a consultation and discover how the Lennox CBK48MVT Air Handler can upgrade your home comfort.

Fall Home Maintenance Checklist: Get Your Home Ready for Cooler Weather

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As the leaves begin to change and temperatures start to dip, it’s the perfect time to prepare your home for the colder months ahead. A proactive fall maintenance checklist can help ensure your house stays warm, energy-efficient, and problem-free throughout the winter. Tackling these essential tasks now can also prevent unexpected breakdowns and costly repairs during the peak of the heating season.

Here’s your comprehensive fall home maintenance checklist—with expert tips from Marsh Heating & Air Conditioning, your trusted partner for all things HVAC.

1. Inspect and Clean Your Gutters

Your home’s gutter system plays a vital role in directing rainwater and melting snow away from your roof and foundation. In the fall, gutters often become clogged with leaves, twigs, and debris.

✔ Remove all debris to prevent overflow and ice dams, which can cause serious water damage.
✔ Check downspouts to ensure they drain properly and are angled away from the foundation.
✔ Consider installing gutter guards to minimize future clogs and reduce seasonal maintenance.

Neglected gutters can lead to costly structural damage and mold growth—especially in freeze-thaw climates like Minnesota.

2. Seal Windows and Doors

Cold drafts can easily sneak into your home through small gaps and cracks around windows and doors, causing your heating system to work harder and raising your energy bills.

✔ Apply caulk around window frames, and use weatherstripping on doors to block drafts.
✔ Don’t forget baseboards, attic hatches, and vents, which are common culprits for air leaks.
✔ Use thermal curtains or window film for added insulation during the coldest months.

Proper sealing not only improves comfort but also reduces the strain on your HVAC system—leading to energy savings and better indoor air quality.

3. Check Your Heating System

Before the first deep freeze, it’s important to make sure your furnace or heating system is in good working order.

✔ Test your thermostat to ensure it responds correctly and maintains your desired temperature.
✔ Turn on your furnace for a few minutes and listen for unusual sounds like clanking or screeching, which could signal mechanical issues.
✔ Replace or clean your air filter to improve airflow, system efficiency, and indoor air quality.

The earlier you check, the more time you have to schedule service if repairs or adjustments are needed.

4. Clean Your Fireplace and Chimney

If your home has a fireplace, especially a wood-burning one, now’s the time to prepare it for safe, efficient use.

✔ Clear out ashes and soot from the firebox.
✔ Inspect for creosote buildup, which is highly flammable and should be professionally cleaned.
✔ Schedule a chimney sweep if it hasn’t been cleaned in the past year.

Even if you only use your fireplace occasionally, annual maintenance is important for fire prevention and proper ventilation.

5. Schedule a Professional Furnace Tune-Up

Your furnace is the heart of your home during winter, and a pre-season tune-up ensures it’s ready to handle the months ahead.

✔ A tune-up includes inspecting components, tightening connections, checking fuel lines, and testing for carbon monoxide leaks.
✔ Routine maintenance improves system efficiency, extends the life of your furnace, and helps prevent unexpected breakdowns.
✔ You may also catch small issues early—before they turn into costly repairs on the coldest day of the year.

Marsh Heating & Air Conditioning Is Your Fall Comfort Partner

At Marsh Heating & Air Conditioning, we know that fall preparation isn’t just about staying warm—it’s about creating a safer, more efficient home. With over 50 years of experience serving the Twin Cities, we offer:

  • Expert furnace tune-ups and safety inspections

  • Air filter replacements for cleaner air and better performance

  • Honest guidance on repairs or replacements when needed

  • Maintenance plans for peace of mind all season long

Whether your system just needs a checkup or you’re ready to upgrade to a more energy-efficient furnace, we’re here to help make sure your home stays cozy—no matter how cold it gets outside.

📞 Call Marsh Heating & Air Conditioning today at 763.536.0667 or visit MarshHeating.com to schedule your fall HVAC maintenance.

Don’t wait for the first frost—get ahead of winter with our expert fall maintenance services.

Upgrade Your Comfort with the Lennox SL22KLV Heat Pump: Smart, Efficient, and Year-Round Savings

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For homeowners in Minnesota and beyond, staying comfortable year-round often means relying on both heating and cooling systems. But what if one unit could handle both, while dramatically lowering your energy bills and enhancing your home’s comfort? Enter the Lennox SL22KLV Variable-Capacity Heat Pump—a premium HVAC solution designed for maximum efficiency, minimal noise, and seamless smart home integration.

At Marsh Heating & Air Conditioning, we’re proud to offer cutting-edge Lennox products that prioritize both performance and energy savings. If you’re considering an HVAC upgrade, here’s why the SL22KLV should be at the top of your list.

What Is the SL22KLV Heat Pump?

The Lennox SL22KLV is part of the Signature® Collection, Lennox’s top-tier lineup of high-efficiency heating and cooling systems. This model is a variable-capacity heat pump, which means it provides both heating and cooling—and automatically adjusts its output in small increments to match your home’s exact needs.

Unlike traditional heat pumps that operate at full blast or not at all, the SL22KLV uses variable-speed technology to maintain a consistent indoor temperature while consuming as little energy as possible. Whether you’re dealing with summer heat or a chilly fall evening, this unit delivers comfort that adapts to you.

Key Benefits of the Lennox SL22KLV

✅ Exceptional Energy Efficiency

With a SEER rating of up to 22 and an HSPF rating up to 10, the SL22KLV is one of the most efficient heat pumps available today. It’s ENERGY STAR® certified, which means it meets or exceeds strict guidelines for energy efficiency set by the U.S. Environmental Protection Agency.

Upgrading to a high-efficiency heat pump like the SL22KLV can significantly lower your monthly utility bills, especially if you’re replacing an older system with a lower SEER rating. And with energy costs continuing to rise, these savings will add up year after year.

✅ All-Electric Heating and Cooling

The SL22KLV gives homeowners an all-electric heating and cooling option that’s powerful and environmentally responsible. By reducing reliance on fossil fuels and taking advantage of clean electricity (including solar power when paired with Lennox’s SunSource® modules), it’s a smart choice for those seeking more sustainable home solutions.

✅ Variable-Capacity Operation for Precise Comfort

Unlike single- or two-stage systems that turn on and off repeatedly, the SL22KLV runs at the exact speed needed to maintain your desired temperature. This reduces temperature swings, improves humidity control, and enhances overall comfort—especially in homes where consistent heating or cooling is a challenge.

✅ Quiet Performance with SilentComfort™ Technology

No one wants their HVAC system to be the loudest thing in the house—or outside it. The SL22KLV uses SilentComfort™ technology to reduce operational noise to as low as 58 decibels. That’s quieter than a normal conversation and significantly quieter than many standard heat pumps.

✅ Smart Home Integration

The SL22KLV is iComfort®-enabled, allowing full integration with the iComfort® S30 Smart Thermostat and popular smart home platforms. You’ll be able to control your home’s climate remotely, set schedules, and even receive maintenance alerts—all from your smartphone or tablet.

Smart features like geofencing, Smart Away™, and Allergen Defender work in the background to optimize comfort, reduce energy use, and improve indoor air quality based on your habits and environment.

How the SL22KLV Improves Your Home

The Lennox SL22KLV is ideal for:

  • Year-round comfort with one system that handles both heating and cooling

  • Homeowners seeking lower utility bills and reduced environmental impact

  • Smart home users looking to automate and personalize indoor climate control

  • Families needing quieter operation for bedrooms, nurseries, or home offices

  • Those replacing outdated systems with modern, energy-saving technology

With the SL22KLV, your home becomes more comfortable, efficient, and future-ready.

Why Choose Marsh Heating & Air Conditioning?

As a Lennox Premier Dealer, Marsh Heating & Air Conditioning brings over 50 years of experience to homes across the Twin Cities. Our team is factory-trained, licensed, and committed to delivering top-tier installation, service, and support.

When you choose Marsh, you’re choosing:

  • Honest recommendations tailored to your home’s size and lifestyle

  • Expert installation to ensure maximum performance and efficiency

  • Optional maintenance plans for long-term system care and peace of mind

Ready to Experience Year-Round Comfort?

If you’re looking to replace your existing HVAC system or are building a new energy-smart home, the Lennox SL22KLV Heat Pump is a premium option worth considering. With ultra-quiet operation, industry-leading efficiency, and full smart-home compatibility, it’s a solution that delivers comfort without compromise.

📞 Call Marsh Heating & Air Conditioning at 763.536.0667 or visit MarshHeating.com to schedule your free estimate and find out how the SL22KLV can transform your home.

Experience Ultimate Cooling Efficiency with the Lennox SL25KCV Air Conditioner

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When summer temperatures climb in Minnesota, your air conditioner becomes your home’s MVP. But not all AC units are created equal. If you’re looking for an ultra-efficient, whisper-quiet, and smart-home-ready cooling solution, the Lennox SL25KCV stands out as one of the best options on the market today.

As part of the Lennox Signature® Collection, the SL25KCV is built with advanced technology that offers not just relief from the heat—but also long-term energy savings and precise temperature control. At Marsh Heating & Air Conditioning, we proudly install the SL25KCV for homeowners who want peak comfort without compromising efficiency.

What Makes the Lennox SL25KCV Exceptional?

The SL25KCV is Lennox’s most efficient and quietest central air conditioner. With a SEER rating of up to 28, this system is designed to deliver high-performance cooling while dramatically lowering your energy bills.

It also features variable-capacity operation, meaning it can adjust its output in small increments rather than running full blast all the time. This allows it to maintain a consistent indoor temperature, reduce energy waste, and eliminate hot and cold spots throughout the home.

Key Benefits of the Lennox SL25KCV

✅ Unmatched Energy Efficiency (Up to 28 SEER)

The Seasonal Energy Efficiency Ratio (SEER) measures how efficiently an air conditioner cools your home. The higher the SEER rating, the more efficient the system. The SL25KCV’s 28 SEER rating makes it one of the most energy-efficient AC units available.

If you’re upgrading from an older unit with a SEER of 10 or 13, the SL25KCV can cut your cooling costs by more than half. That’s real savings you’ll notice all summer long.

✅ Variable-Capacity Comfort

Rather than turning on and off frequently like traditional AC units, the SL25KCV uses variable-speed technology to adjust its output based on your cooling needs. This leads to:

  • More consistent temperatures

  • Quieter operation

  • Less energy consumption

  • Improved humidity control

This kind of advanced comfort is perfect for Minnesota summers, where temperatures and humidity can vary dramatically from day to day.

✅ SilentComfort™ Technology

Say goodbye to noisy outdoor units. The SL25KCV is Lennox’s quietest central air conditioner ever, thanks to its SilentComfort™ Technology. Engineered sound-dampening features ensure that the unit runs quietly—even at higher capacities—so you can enjoy your summer without the background hum.

✅ iComfort®-Enabled for Smart Home Integration

When paired with the iComfort® S30 Smart Thermostat, the SL25KCV becomes part of your intelligent home ecosystem. It allows for:

  • Remote temperature control via smartphone or tablet

  • Integration with Amazon Alexa, Google Assistant, and Apple HomeKit

  • Features like Smart Away™, which adjusts temperatures automatically when you leave

  • Allergen Defender, which reacts to air quality alerts in your area

This connectivity puts complete comfort control right in your hands, whether you’re at home or away.

✅ Environmentally Responsible

The SL25KCV uses R-410A refrigerant, which is chlorine-free and does not deplete the ozone layer. Combined with its low energy consumption, this unit is an eco-conscious choice for homeowners who want to reduce their carbon footprint without sacrificing comfort.

Is the SL25KCV Right for Your Home?

This air conditioner is ideal for:

  • Homeowners upgrading from an older or inefficient system

  • Families who want a quieter, more consistent cooling experience

  • Smart home enthusiasts who want full thermostat integration

  • Anyone focused on reducing long-term energy costs

If you’re planning to stay in your home for years to come, the SL25KCV is an investment that pays off in comfort, savings, and reliability.

Trust Marsh Heating & Air Conditioning with Your AC Upgrade

At Marsh Heating & Air Conditioning, we’ve been serving the Twin Cities for over 50 years. As a Lennox Premier Dealer, we’re trained and certified to install the SL25KCV and other high-efficiency Lennox systems with precision and care.

When you work with us, you get:

  • Honest, professional recommendations tailored to your home

  • Flawless installation that maximizes performance

  • Ongoing maintenance plans to keep your system running at its best

Take Control of Your Comfort Today

The Lennox SL25KCV isn’t just an air conditioner—it’s a smarter, quieter, and more efficient way to cool your home. If you’re ready to make an upgrade that delivers both comfort and savings, Marsh Heating & Air Conditioning is here to help.

📞 Call us today at 763.536.0667 or visit MarshHeating.com to schedule a consultation and discover how the Lennox SL25KCV can transform your summer comfort.

Seasonal HVAC Maintenance Tips for Commercial Buildings

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As the seasons change, so do the demands on your commercial HVAC system. Keeping your heating and cooling system in top shape ensures energy efficiency, comfort, and reliability throughout the year. Here are essential seasonal HVAC maintenance tips to help protect your investment and keep your business running smoothly.

Spring and Summer Maintenance Tips

  1. Schedule a Professional Inspection
    • Have a technician inspect and tune up your system before peak cooling season to avoid unexpected failures.
  2. Clean or Replace Air Filters
    • Dirty filters restrict airflow, reducing efficiency and increasing energy costs. Replace filters at least once a month.
  3. Check Refrigerant Levels
    • Low refrigerant can reduce cooling efficiency and lead to compressor damage. A professional check ensures optimal performance.
  4. Inspect and Clean Evaporator and Condenser Coils
    • Dirty coils reduce heat exchange efficiency, making your system work harder and consuming more energy.
  5. Clear Debris Around Outdoor Units
    • Ensure there are no obstructions like leaves, dirt, or grass around your HVAC units to maintain proper airflow.
  6. Test and Calibrate Thermostats
    • Ensure your thermostats are reading and controlling temperatures accurately for energy savings and comfort.
  7. Inspect Ductwork for Leaks
    • Leaky ducts cause cooled air to escape, leading to inefficiency and uneven temperatures.

Fall and Winter Maintenance Tips

  1. Schedule a Heating System Inspection
    • A professional tune-up before cold weather ensures your furnace or heat pump operates efficiently when needed.
  2. Replace Air Filters Again
    • As with summer, clean filters are crucial for maintaining airflow and air quality.
  3. Check Carbon Monoxide Detectors
    • If you use a gas heating system, test carbon monoxide detectors to ensure safety.
  4. Inspect the Heat Exchanger
    • Cracks in the heat exchanger can lead to dangerous carbon monoxide leaks. A technician should inspect it annually.
  5. Seal Gaps and Insulate Ducts
    • Prevent heat loss and improve system efficiency by sealing leaks and ensuring proper insulation in ductwork.
  6. Inspect and Test Emergency Shut-Offs
    • Safety mechanisms should be functional to prevent hazards in case of a system malfunction.
  7. Check the Furnace Blower Motor and Belts
    • Worn-out belts and motors reduce system efficiency and may lead to breakdowns.

Why Seasonal HVAC Maintenance Matters

  • Reduces Energy Costs: A well-maintained system operates efficiently, cutting down on energy waste.
  • Prevents Costly Repairs: Regular maintenance catches small issues before they turn into expensive breakdowns.
  • Ensures Comfort and Air Quality: Clean air filters and functional systems maintain consistent indoor comfort and healthier air.
  • Extends Equipment Life: Routine servicing helps your HVAC system last longer and perform reliably.
  • Maintains Compliance: Many industries have regulations on indoor air quality and HVAC efficiency—regular maintenance ensures compliance.

Keep Your Commercial HVAC System Running Smoothly

Seasonal HVAC maintenance is a proactive approach to preventing downtime and keeping your business comfortable year-round. If your commercial property needs routine HVAC maintenance, contact Marsh Heating & Air Conditioning today. With over 50 years of experience, we help businesses stay efficient and comfortable no matter the season.

How Humidity Affects Your HVAC System & Home Comfort

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Humidity plays a crucial role in maintaining a comfortable and efficient home environment. Too much or too little humidity can impact your HVAC system’s performance and your overall well-being. Here’s how humidity levels affect your home and what you can do to maintain the perfect balance.

The Ideal Indoor Humidity Level

For optimal comfort and HVAC efficiency, indoor humidity levels should be maintained between 30-50%. Levels outside this range can cause various problems for both your home and health.

Effects of High Humidity on Your Home and HVAC System

  • Increased Energy Costs: Excess moisture makes your air conditioner work harder, consuming more energy.
  • Mold and Mildew Growth: High humidity encourages mold and mildew, which can lead to health issues and damage to your home.
  • Poor Air Quality: Excessive moisture promotes dust mites and allergens, affecting indoor air quality.
  • Uncomfortable Living Conditions: A sticky, damp atmosphere can make your home feel warmer than it actually is, leading to excessive AC use.

Effects of Low Humidity on Your Home and HVAC System

  • Dry and Itchy Skin: Low moisture levels can cause skin irritation, dry eyes, and respiratory discomfort.
  • Increased Static Electricity: Low humidity can lead to annoying static shocks and damage to electronics.
  • Damage to Wood and Furniture: Insufficient moisture can cause wood to crack, warp, or become brittle.
  • HVAC Inefficiency: Dry air makes it harder for your heating system to maintain comfortable temperatures, increasing energy costs.

How Your HVAC System Regulates Humidity

  • Air Conditioners: Remove excess moisture from the air while cooling your home.
  • Dehumidifiers: Help control excessive moisture in humid climates or during summer months.
  • Humidifiers: Add moisture to the air in dry winter months to prevent dryness-related issues.
  • Ventilation Systems: Ensure proper air circulation and prevent moisture buildup.

Tips for Maintaining Proper Humidity Levels

  • Use a Hygrometer: A simple humidity meter can help you monitor indoor humidity levels.
  • Run Exhaust Fans: Use fans in kitchens and bathrooms to remove excess moisture.
  • Seal Leaks and Insulate Properly: Prevent excess moisture or dryness from infiltrating your home.
  • Upgrade Your HVAC System: Consider adding whole-home humidifiers or dehumidifiers for automatic humidity control.

When to Call an HVAC Professional

If you experience persistent humidity issues, your HVAC system may need maintenance or an upgrade. A professional technician can assess your system’s performance and recommend solutions to ensure balanced indoor humidity.

Ensure Year-Round Comfort with Proper Humidity Control Maintaining the right humidity levels is essential for both comfort and HVAC efficiency. If you’re experiencing humidity problems, contact Marsh Heating & Air Conditioning today. With over 50 years of experience, we can help you find the perfect solutions for a healthier and more comfortable home.

How to Allergy-Proof Your Home—And Why Your HVAC System Matters

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If spring and fall leave you sneezing, congested, or with watery eyes—even indoors—you’re not alone. Allergies don’t stop at the door, and for many homeowners, indoor air can actually be more polluted than what’s outside. But the good news is, with a few smart changes and the right HVAC solutions, you can dramatically reduce allergens in your home.

At Marsh Heating & Air Conditioning, we understand the challenges Minnesota families face when it comes to indoor air quality. With over 50 years of experience serving local homeowners, we know how to help you breathe easier—season after season.

Why Indoor Allergies Are So Common

Allergens like pollen, dust mites, pet dander, mold spores, and volatile organic compounds (VOCs) can accumulate indoors—especially in tightly sealed homes designed for energy efficiency. While that efficiency helps with heating and cooling costs, it also means airborne irritants get trapped inside, circulating through your HVAC system.

If your HVAC system isn’t optimized to filter, clean, and properly circulate air, those allergens keep coming back—leading to symptoms like:

  • Nasal congestion
  • Itchy or watery eyes
  • Coughing and wheezing
  • Headaches and fatigue

Top Ways to Allergy-Proof Your Home

  1. Change Your HVAC Filters Regularly

A clean filter is your first line of defense. Standard filters should be replaced every 1–3 months, but allergy sufferers should consider upgrading to high-efficiency pleated filters (MERV 11–13) or even HEPA filters if your system allows it.

  1. Invest in Whole-Home Air Purification

Portable purifiers help in single rooms, but whole-home systems are more effective for consistent, house-wide protection. The Lennox PureAir™ Air Purification System removes over 99% of airborne particles, including pollen, mold spores, dust, pet dander, and even airborne viruses and bacteria.

This system:

  • Works silently with your HVAC system
  • Breaks down odors and VOCs
  • Requires minimal maintenance

It’s one of the most comprehensive air purification solutions available—and we install them right here at Marsh Heating.

  1. Control Indoor Humidity

Dust mites and mold thrive in high humidity, while dry air can irritate sinuses. Maintaining your home’s humidity between 30% and 50% helps reduce allergens and supports respiratory health.

Lennox Healthy Climate® humidifiers and dehumidifiers work in tandem with your HVAC system to automatically balance humidity levels based on your needs and the season.

  1. Clean Your Ducts (When Necessary)

Over time, ducts can accumulate dust, debris, and allergens. While not every home needs duct cleaning regularly, if your system hasn’t been checked in years—or if you’ve recently renovated—it’s a good idea to have a professional inspection.

  1. Keep Up with Maintenance

An unmaintained HVAC system can become a breeding ground for bacteria and mold. Schedule annual maintenance with Marsh Heating to ensure your system is clean, efficient, and working in your favor—not against it.

Simple Daily Habits That Help

In addition to optimizing your HVAC system, small lifestyle changes can help reduce allergy symptoms:

  • Remove shoes at the door to keep outdoor allergens out
  • Wash bedding weekly in hot water
  • Use an allergen-proof mattress cover
  • Bathe pets regularly to reduce dander
  • Vacuum often with a HEPA-filter vacuum
  • Wipe down hard surfaces to remove dust and pollen

Allergy Relief Starts with Better Air—And the Right Partner

When it comes to reducing indoor allergens, your HVAC system plays a major role—but it takes more than just changing your filter. From installing air purification and humidity control systems to performing regular maintenance, Marsh Heating & Air Conditioning is here to help you create a cleaner, healthier home.

We are proud to be a locally owned company serving Minnesota families for over five decades. As a trusted Lennox dealer, we provide access to industry-leading indoor air quality products that make a real difference.

📞 Contact Marsh Heating & Air Conditioning today to schedule an indoor air quality consultation and breathe easier all year long.


Refrigerant Innovations: The Future of Eco-Friendly HVAC Systems

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As environmental concerns grow, the HVAC industry is evolving with new refrigerant innovations designed to reduce carbon footprints and improve energy efficiency. Traditional refrigerants have been linked to ozone depletion and global warming, prompting the development of more sustainable alternatives. Here’s what you need to know about the latest advancements in refrigerant technology.

The Shift Away from R-22 and High GWP Refrigerants

For decades, R-22 (Freon) was widely used in air conditioning and refrigeration systems. However, due to its ozone-depleting potential (ODP) and high global warming potential (GWP), it has been phased out and replaced with more environmentally friendly options. Since January 1, 2020, the production and import of R-22 have been banned in the U.S., making retrofitting and upgrading systems essential.

The Rise of R-410A and Its Successor

  • R-410A has been the primary replacement for R-22 due to its zero ozone depletion potential and improved efficiency.
  • However, R-410A still has a relatively high GWP, leading to the search for even better alternatives.

Next-Generation Low-GWP Refrigerants

Several new refrigerants are emerging with lower environmental impact, including:

  • R-32: A promising alternative to R-410A with significantly lower GWP and enhanced energy efficiency.
  • R-454B (Puron Advance): Expected to replace R-410A in many HVAC systems, offering a reduction in carbon emissions.
  • CO2 (R-744): A natural refrigerant with zero ODP and extremely low GWP, used in specialized applications.
  • Hydrocarbons (HCs) like R-290 (Propane): Extremely low GWP but requires safety precautions due to flammability.

Benefits of Upgrading to a Low-GWP Refrigerant System

  • Lower Carbon Footprint: Reduced environmental impact through lower emissions.
  • Improved Energy Efficiency: Many new refrigerants allow HVAC systems to consume less energy, lowering utility bills.
  • Regulatory Compliance: New refrigerants meet stricter EPA and international environmental standards.
  • Future-Proofing Your HVAC System: Investing in a system compatible with next-gen refrigerants ensures long-term savings and reduced maintenance costs.

What Homeowners Should Consider

If you have an older HVAC system that still uses R-22 or an outdated refrigerant, now is the time to consider an upgrade. Retrofitting or replacing your system with one that supports newer, eco-friendly refrigerants can improve performance and ensure compliance with environmental regulations.

Professional Installation and Guidance

Choosing the right refrigerant for your home requires expert advice. A professional HVAC technician can assess your system, recommend upgrades, and ensure safe and efficient installation.

Make the Switch to Eco-Friendly Cooling

As refrigerant technology advances, upgrading to a more sustainable HVAC system can help protect the environment while enhancing home comfort and efficiency. If you’re ready to explore eco-friendly cooling solutions, Marsh Heating & Air Conditioning is here to help. With over 50 years of experience, we provide expert recommendations on the latest refrigerant innovations. Contact us today!

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Marsh Heating & Air Conditioning
6248 Lakeland Ave N
Brooklyn Park, MN 55428
(763) 536-0667