Brooklyn Park MN Heating Experts

October 9 2025

Breathe Better, Live Warmer: Why the Lennox SL297NV Furnace Is the Clean Comfort Upgrade Your Home Needs

Marsh Blog Contributor Furnaces, HVAC Products, Info Articles Brooklyn Park MN Heating Experts, Furnace, New Furnace, New Furnace Installation

In Minnesota, heating isn’t optional—it’s essential. But comfort in your home isn’t just about staying warm. It’s about breathing clean, healthy air while maintaining a cozy, energy-efficient environment. If your current furnace is loud, inconsistent, or simply outdated, it might be time for a system that does more than just heat your space.

Enter the Lennox SL297NV Variable-Speed Gas Furnace—a next-generation heating system designed to deliver not only superior warmth but also exceptional air quality, energy efficiency, and quiet operation. At Marsh Heating & Air Conditioning, we believe your HVAC system should work harder so you don’t have to—and this model is proof.

Let’s take a closer look at why the SL297NV isn’t just a furnace—it’s an air quality solution for comfort-conscious homeowners.

Meet the SL297NV: Silent, Efficient, and Exceptionally Clean

The Lennox SL297NV is part of the Lennox Signature® Collection, a line known for best-in-class performance and smart energy use. What sets this model apart is its SilentComfort™ technology and its compatibility with Lennox’s Healthy Climate® air filtration systems.

That means while it’s keeping your family warm through subzero temperatures, it’s also working quietly and effectively behind the scenes to improve the air you breathe.

💨 Quiet Operation That Won’t Disrupt Your Life

Tired of the constant hum, clank, or roar when your furnace kicks on? The SL297NV uses variable-speed airflow and sound-absorbing insulation to minimize operating noise. The result? One of the quietest furnaces in its class.

The system doesn’t blast on and off like older models. Instead, it ramps up and down slowly, delivering consistent, gentle heat and maintaining a more even temperature throughout your home—all while keeping your peace and quiet intact.

🌬️ Cleaner Indoor Air with Every Cycle

What truly sets the SL297NV apart is its ability to improve indoor air quality. It’s the first furnace from Lennox to feature their innovative “SureLight®” ignitor and compatibility with the PureAir™ air purification system.

This means:

Less dust and airborne particles floating through your vents
Reduced allergens and airborne pollutants
Cleaner, healthier breathing environment for families with asthma or allergies

When paired with a Lennox air purifier or advanced MERV-rated filters, the SL297NV becomes more than a heating system—it becomes the foundation of a healthier home.

🔥 High-Efficiency Comfort with Up to 97.5% AFUE

The SL297NV boasts an impressive AFUE (Annual Fuel Utilization Efficiency) rating of up to 97.5%, meaning nearly every dollar you spend on energy goes directly into heating your home.

Here’s what that means for you:

Lower utility bills compared to standard furnaces
Less energy wasted through the flue or ductwork
Long-term savings that add up quickly

This furnace is ENERGY STAR® qualified, making it an excellent choice for eco-conscious homeowners or anyone looking to reduce household operating costs over time.

🚀 Smart Integration with iComfort® Thermostats

The SL297NV seamlessly integrates with Lennox’s iComfort® smart thermostats, giving you app-based control over your home’s heating system—even when you’re not there.

With features like:

Remote access
Programmable schedules
Weather-responsive automation
Maintenance alerts and system diagnostics

…you’ll never be left guessing if your system is running efficiently. It puts complete climate control at your fingertips.

Perfect for Minnesota Winters—and the Families Who Brave Them

For Minnesota homeowners, staying warm is more than comfort—it’s a safety issue. The SL297NV is built for extreme conditions, with durable construction and precision temperature control that delivers comfort even during polar vortexes and subzero nights.

But beyond the performance specs, this furnace stands out because it cares for your indoor environment holistically—reducing allergens, lowering noise, and ensuring consistent warmth from room to room.

Upgrade to the SL297NV with Marsh Heating & Air Conditioning

If you’re ready to replace your aging furnace with something smarter, cleaner, and more efficient, the Lennox SL297NV is an investment in long-term comfort and air quality. And when you choose Marsh Heating & Air Conditioning, you get more than installation—you get decades of expertise and a commitment to your year-round comfort.

We’ll help you:

Select the right system for your home and budget
Provide expert installation by certified technicians
Offer maintenance plans to keep your system running like new

📞 Call Marsh Heating & Air Conditioning today at 763.536.0667 or visit MarshHeating.com to schedule a consultation.

Breathe better. Sleep warmer. Save more. It’s all possible with the Lennox SL297NV.

August 19 2025

Seasonal HVAC Maintenance Tips for Commercial Buildings

Marsh Blog Contributor Commercial HVAC, Info Articles Brooklyn Park MN Heating Experts, Commercial HVAC, Marsh Heating and Air Conditioning

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

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

Fall and Winter Maintenance Tips

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

July 3 2025

How Lennox Furnaces Improve Indoor Air Quality While Heating Your Home

Marsh Blog Contributor Furnaces, HVAC Products, Indoor Air Quality, Info Articles Brooklyn Park MN Heating Experts, Heating, New Furnace, New Heater

How Lennox Furnaces Improve Indoor Air Quality While Heating Your Home

When winter arrives in Minnesota, your furnace becomes the heart of your home, keeping you warm and comfortable. But did you know that your heating system can also impact your indoor air quality (IAQ)?

Many homeowners assume that their furnace is only responsible for heating, but Lennox high-efficiency furnaces are designed to do much more. By incorporating advanced filtration, humidity control, and cleaner-burning technology, these systems help maintain healthy air while keeping your home cozy.

How Your Furnace Affects Indoor Air Quality

Your heating system circulates air throughout your home, and if it’s not properly maintained, it can contribute to:
❌ Dust and allergens spreading through the air.
❌ Dry indoor air, leading to irritated skin, sinuses, and respiratory issues.
❌ Poor ventilation, allowing contaminants to build up.

A Lennox furnace, however, is built with features that actively improve air quality while delivering top-tier heating performance.

Lennox Furnaces That Enhance Indoor Air Quality

Lennox SLP99V – The Ultimate in Clean & Efficient Heating

🔥 AFUE Rating: Up to 99% (nearly no wasted energy!)
🔹 Variable-capacity heating prevents sudden air blasts that stir up dust.
🔹 SilentComfort™ technology reduces noise and maintains steady airflow.
🔹 Compatible with the Lennox PureAir™ air purification system for hospital-grade filtration.

💡 Consumer Benefit: Provides consistent, ultra-clean air circulation while delivering maximum heating efficiency.

Lennox EL296V – Smart Comfort & Cleaner Air

🔥 AFUE Rating: 96%
🔹 Two-stage heating reduces temperature swings and prevents excessive airflow disturbances.
🔹 Variable-speed motor ensures better air circulation and filtration.
🔹 Works with Healthy Climate® filters, which trap airborne contaminants.

💡 Consumer Benefit: A balance of affordability and air quality benefits, making it a great choice for allergy sufferers.

Lennox ML296V – Efficient Heating with Better Air Circulation

🔥 AFUE Rating: 96%
🔹 Two-stage operation minimizes sudden airflow changes, helping prevent airborne irritants.
🔹 Compatible with humidifiers and air purifiers for improved air quality.
🔹 Durable and budget-friendly while providing better air movement.

💡 Consumer Benefit: A cost-effective upgrade for homeowners who want better heating and air quality without a high price tag.

How Lennox Furnaces Improve Your Home’s Air Quality

✔ Advanced Air Filtration – Works with MERV 16 filters to remove airborne allergens, pet dander, and pollutants.
✔ Steady Airflow with Variable-Speed Motors – Reduces sudden blasts of air, preventing dust from spreading.
✔ Integration with Humidifiers – Works seamlessly with Lennox Healthy Climate® humidifiers to prevent dry indoor air.
✔ Sealed Combustion Design – Reduces exposure to combustion byproducts, making your home’s air cleaner.
✔ Compatible with Air Purification Systems – Pairs with PureAir™ and UV light air purifiers to eliminate bacteria, mold, and VOCs.

The Lennox PureAir™ System: The Ultimate Air Purifier for Your Furnace

For homeowners who want the cleanest indoor air possible, Lennox offers the PureAir™ Air Purification System.

💨 Removes up to 99.9% of airborne particles, including bacteria, mold, and viruses.
🌿 Destroys household odors and chemical vapors using carbon filtration.
⚡ Uses UV light technology to eliminate contaminants without producing ozone.

When paired with a Lennox high-efficiency furnace, the PureAir™ system creates one of the healthiest home environments possible.

Why Indoor Air Quality Matters in Minnesota Homes

Minnesota winters mean closed windows and less natural ventilation—which can trap pollutants inside. Poor indoor air quality can cause:
❌ Increased allergy and asthma symptoms.
❌ Dry, itchy skin and irritated sinuses.
❌ Higher risk of airborne illnesses.

By choosing a Lennox high-efficiency furnace, you not only stay warm—you also breathe cleaner, healthier air all winter long.

Upgrade to a Lennox Furnace for Cleaner Air & Better Comfort

At Marsh Heating & Air Conditioning, we specialize in installing Lennox furnaces that provide exceptional heating and improved indoor air quality. Whether you’re looking for a high-efficiency upgrade or an advanced air purification system, we’ll help you find the perfect solution.

📞 Contact us today to learn how a Lennox furnace can keep your home warmer and healthier this winter! 763.536.0667

(763)-536-0667

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