Some of the Best Gas Furnaces You Can Buy in Ballwin

If you’re searching for a gas furnace replacement in St. Louis County, our Dave Lennox Signature Collection gas furnaces are the best option. These products are some of the quietest gas furnaces out there and are very energy efficient.

Let’s start with energy efficiency. Our Dave Lennox Signature Collection gas furnaces feature variable speed motors, which save energy by only operating fans at full speed when extreme heat is required. Variable speed motors use 2/3 less energy than single speed motors and could help you save big on yearly utility expenses compared to older furnaces.

Product details for each Dave Lennox Signature Collection gas furnace model are provided below. If you want to talk with a Air Alliance Team team member about one of our products in St. Louis County, call 636-206-4250 or set up an appointment online.

SLP98V Variable-Capacity Gas Furnace

You’ll enjoy the high efficiency of this gas furnace. It’s earned the ENERGY STAR® label for meeting EPA efficiency standards, and it has also earned an annual fuel utilization efficiency (AFUE) rating* of 98.2%. Add those together and you can get hundreds of dollars back in utility savings each year. Discover the SLP98V’s other impressive features, including:

  • Efficiency rating of up to 98.2% AFUE*—helps you save on utility expenses
  • ENERGY STAR® qualified—meets or exceeds EPA guidelines for energy efficiency
  • Variable-capacity operation runs much like the cruise control system of high-performance automobiles, adjusting on its own as necessary to achieve maximum fuel efficiency
  • iComfort®-enabled technology—enables the furnace, when installed with the easy-to-use programmable iComfort Wi-Fi® thermostat, to offer even better performance and efficiency
  • PreciseComfort™ technology provides great temperature control
  • SilentComfort technology allows the system to run quietly
  • SureLight® ignitor for an efficient performance
  • Insulated blower compartment to keep heat in and decrease heat loss
  • 10-Year Limited Warranty on parts and controls
  • Limited Lifetime Warranty on heat exchanger
SLP98V Variable-Capacity Gas Furnace
Efficiency Rating (SEER): up to 98.7
Price Guide: $$$Energy Star badge

SL280NV Variable Speed, Ultra-Low Emissions Gas Furnace

The SL280NV gas furnace can help reduce your utility expenses while keeping your home pleasant all winter. Even on the coldest days, its quiet, two-stage heating will keep temperatures consistent while using as little gas as possible. You can also breathe easy knowing this furnace contributes to a stronger environment—inside and outside. As the first lowest emission furnace on the market,1 it emits 65 percent less nitrogen oxide than standard low-NOx furnaces. Less NOx means healthier air and plants. This furnace also features:

  • Efficiency rating of up to 80% AFUE2—which can potentially save you more money on utility bills.
  • Ultra-low speed continuous fan adjusts humidity and delivers healthier air.
  • iComfort®-enabled technology—when linked with an iComfort® S30 Ultra Smart Thermostat, learns your family’s calendar and adjusts heating for energy savings.
  • SilentComfort™ technology and sound-absorbing insulation provides quiet heating.
  • Dual-fuel capable—Pair with an electric Lennox® heat pump for highest efficiency.
  • SureLight® ignition gives efficient performance.
  • Insulated blower component hangs on to more heat.
  • 20-Year Limited Warranty on the heat exchanger.
  • 10-Year Limited Warranty on remaining covered components.3

1Lennox® SL97UH40NV36B, EL195UH100NE60C, SL280UH100NV60C and EL180UH040NE36A units are the first commercially available, natural Gas-Fired Fan-type Central Furnaces to meet an NOx emission limit of 14 nanograms per Joule (ng/J).
2Annual Fuel Utilization Efficiency (AFUE) measures how efficiently an appliance converts fuel into heat over the course of a year.
3Applies to residential applications only. See actual warranty certificate for details.

Note: Due to Lennox’s ongoing commitment to quality, specifications and ratings are subject to change without notice.

SL280V Variable Speed Gas Furnace
Efficiency Rating (SEER): up to 80
Price Guide: $$$Energy Star badge

SL297NV Variable-Speed, Ultra-Low Emissions Gas Furnace

Enjoy energy efficiency that smoothly acclimates to your lifestyle with the SL297NV gas furnace. Not only can this furnace help you save on heating expenses, it’s an environmentally friendly choice. As the first lowest emission furnace on the market,1 the SL297NV makes 65 percent less nitrogen oxide than standard low-NOx furnaces. You can rest easy knowing your furnace is creating fresher air and healthier plants. Recognized with ENERGY STAR® designation, this furnace has the capability to save you hundreds of dollars a year on utility costs. It also features:

  • Efficiency rating of up to 97.5% AFUE2—possibly keeping more money in your pocket on the account of decreased energy use.
  • Intuitive fan mode that can control humidity and create healthier air.
  • iComfort®-enabled technology, when installed with an iComfort® S30 Ultra Smart Thermostat, learns your family’s schedule for the most energy savings.
  • SilentComfort™ technology and sound-absorbing insulation means your furnace will heat quietly.
  • Dual-fuel capable—Can be combined with an electric Lennox® heat pump for highest efficiency.
  • SureLight® ignition gives efficient performance.
  • Insulated blower component limits heat loss.
  • Stainless-steel secondary heat exchanger catches additional heat, allowing the furnace to reach greater efficiency levels.
  • Lifetime Limited Warranty on the heat exchanger.
  • 10-Year Limited Warranty with product registration.
  • 5-Year Limited Warranty on remaining covered components.3

1Lennox® SL97UH40NV36B, EL195UH100NE60C, SL280UH100NV60C and EL180UH040NE36A units are the first commercially available, natural Gas-Fired Fan-type Central Furnaces to meet an NOx emission limit of 14 nanograms per Joule (ng/J).
2Annual Fuel Utilization Efficiency (AFUE) measures how efficiently an appliance converts fuel into heat over the course of a year.
3Covered components may be eligible to receive a 10-year warranty. Online equipment registration at www.lennoxregistration.com is required within 60 days of installation (except in California and Quebec) or the Lennox® base warranty will apply. Applies to residential applications only. See actual warranty certificate for details.

Note: Due to Lennox’s ongoing commitment to quality, specifications and ratings are subject to change without notice.

SL297NV Variable-Speed, Ultra-Low Emissions Gas Furnace
Efficiency Rating (SEER): up to 97.5
Price Guide: $$$Energy Star badge

Air Alliance Team in Ballwin is available to help with any of your gas furnace replacement, repair or maintenance needs. Call 636-206-4250 or use our online scheduler to make your appointment.


* Annual Fuel Utilization Efficiency (AFUE) measures how efficient the appliance is in converting its fuel’s energy into heat over the course of a year.