Some of the Best Gas Furnaces You Can Buy in Florissant

Our Dave Lennox Signature® Collection gas furnaces are some of the best. Certain models are also some of the quietest systems available and provide efficient heating for your St. Louis area home.

These Dave Lennox Signature Collection gas furnaces include variable speed motors, which allow more comfort than traditional single speed furnaces. Variable speed furnaces’ blower fans start up slowly and only operate at full speed when there’s an extreme demand for heat. These furnaces may save your family a substantial amount on your energy bills.

Learn about each of our Dave Lennox Signature Collection furnaces and features here. When you’re ready to take the next step in your gas furnace replacement process, give B & B Heating & Cooling in Florissant a call at 314-325-7552 or make an appointment online.

SLP98V Variable-Capacity Gas Furnace

If you’re looking for outstanding energy efficiency, the SLP98V is the gas furnace for you. Having earned a 98.7% annual fuel utilization efficiency (AFUE) rating*, you may see more energy savings. This product is also ENERGY STAR® qualified, meaning it has met or exceeds EPA standards for energy efficient operation. The SLP98V gas furnace is a great choice for homes in Florissant for many reasons, including:

  • Efficiency rating of up to 98.7% AFUE*can help you save on your utility expenses
  • Variable-capacity operation works much like the cruise control system of high-performance automobiles, automatically adjusting as needed to obtain maximum fuel efficiency
  • iComfort®-enabled technology—allows the furnace, when installed with the easy-to-use programmable iComfort Wi-Fi® thermostat, to produce more efficient heat and achieve better performance
  • PreciseComfort technology provides simple and exact temperature control
  • SilentComfort technology allows the system to operate quietly
  • SureLight® ignitor for an efficient performance
  • Insulated blower compartment to keep warm air in, decreasing heat loss
  • Limited Lifetime Warranty on heat exchanger
  • 10-Year Limited Warranty on covered components
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

Reduce your energy costs while gaining remarkable comfort all winter long with the SL280NV gas furnace. Its quiet, two-stage heating will keep temperatures regulated in your home, even on the coldest days. With an efficiency rating of up to 80% AFUE,1 80 cents of every dollar you spend on gas is transformed into to usable heat. You can also feel good knowing the SL280NV is environmentally responsible. As the first lowest emission furnace on the market,2 it creates 65 percent less nitrogen oxide than standard low-NOx furnaces. Less of this gas helps helps the air and plants stay healthy. This furnace also offers:

  • Efficiency rating of up to 80% AFUE1 potentially helping you save on energy costs each year.
  • Ultra-low speed continuous fan can help control humidity and contribute to cleaner air.
  • iComfort®-enabled technology—, when used with an iComfort® S30 Ultra Smart Thermostat, learns your family’s routine to adjust heating for energy savings.
  • SilentComfort™ technology and sound-absorbing insulation keeps your furnace quiet.
  • Insulated blower component retains more heat.
  • 20-Year Limited Warranty on the heat exchanger.
  • 10-Year Limited Warranty on remaining covered components.3

1Annual Fuel Utilization Efficiency (AFUE) measures how efficiently an appliance converts fuel into heat over the course of a year.
22Lennox® 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).
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 relaxing, consistent heating with the SL297NV gas furnace. In addition to the possibility for heating savings, this furnace can also help preserve the environment. The SL297NV is the first lowest emission furnace on the market,1 producing 65 percent less nitrogen oxide than standard low-NOx furnaces. Lower emissions mean purer air and healthier plants. This furnace has achieved ENERGY STAR® status for its energy savings and also includes:

  • Efficiency rating of up to 97.5% AFUE2—potentially saving you hundreds of dollars a year on heating bills.
  • Intuitive fan mode that manages humidity levels and continuously refines air.
  • iComfort®-enabled technology, when installed with an iComfort® S30 Ultra Smart Thermostat, learns your family’s routine to set heating for energy savings.
  • SilentComfort™ technology and sound-absorbing insulation offer quiet operation.
  • Dual-fuel capable—Can be used with an electric Lennox® heat pump for maximum efficiency.
  • SureLight® ignition delivers efficient heating.
  • Insulated blower component minimizes heat loss.
  • Stainless-steel secondary heat exchanger holds on to more heat, allowing the furnace to operate at 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

SL280NV Variable-Speed, Ultra-Low Emissions Gas Furnace

Reduce your energy costs while gaining remarkable comfort all winter long with the SL280NV gas furnace. Its quiet, two-stage heating will keep temperatures regulated in your home, even on the coldest days. With an efficiency rating of up to 80% AFUE,1 80 cents of every dollar you spend on gas is transformed into to usable heat. You can also feel good knowing the SL280NV is environmentally responsible. As the first lowest emission furnace on the market,2 it creates 65 percent less nitrogen oxide than standard low-NOx furnaces. Less of this gas helps helps the air and plants stay healthy. This furnace also offers:

  • Efficiency rating of up to 80% AFUE1—potentially helping you save on energy costs each year.
  • Ultra-low speed continuous fan can help control humidity and contribute to cleaner air.
  • iComfort®-enabled technology, when used with an iComfort® S30 Ultra Smart Thermostat, learns your family’s routine to adjust heating for energy savings.
  • SilentComfort™ technology and sound-absorbing insulation keeps your furnace quiet.
  • Dual-fuel capable—Pair with an electric Lennox® heat pump for maximum efficiency.
  • SureLight® ignition delivers efficient heating.
  • Insulated blower component retains 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.
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.

SL280NV Variable-Speed, Ultra-Low Emissions Gas Furnace
Price Guide: $$$
Efficiency Rating (SEER): up to 80
Energy Star badge

Need help with a gas furnace repair or want to schedule a gas furnace maintenance visit? We’ve got you covered. Our staff in Florissant is trained, experienced and eager to help. Schedule an appointment or call 314-325-7552 now.


* 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.