Some of the Best Gas Furnaces You Can Buy in Mobile

Our Dave Lennox Signature® Collection gas furnaces are some of the best you can find. They’re also some of the quietest operating systems you can buy and offer efficient heating for your Mobile County area home.

Our Dave Lennox Signature Collection gas furnaces feature variable speed motors, which allow more comfort than traditional single speed furnaces. With a variable speed furnace, blower fans start up slowly and only operate at their highest speed when a much higher temperature is demanded. These furnaces may save your family a significant amount on utility bills.

Learn more about each Dave Lennox Signature Collection furnace below. When you’re ready to move forward with your gas furnace replacement, give Farnell Heating & Air Conditioning Inc in Mobile a call at 251-210-7178 or schedule your appointment online.

SLP98V Variable-Capacity Gas Furnace

If high energy efficiency is what you want, the SLP98V is the gas furnace for you. With a 98.7% annual fuel utilization efficiency (AFUE) rating*, you could see high energy savings. The SLP98V is also ENERGY STAR® qualified, meaning it has met or exceeds EPA standards for energy efficient operation. The SLP98V gas furnace is great for homes in Mobile for its variety of additional features, such as:

  • 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 offer higher performance and better efficiency
  • PreciseComfort technology provides simple and exact temperature control
  • SilentComfort technology allows the system to perform 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 bills while having 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 most frigid days. With an efficiency rating of up to 80% AFUE,1 80 cents of every dollar you spend on gas is converted into to usable heat. You can also feel good knowing the SL280NV is a green choice. As the first lowest emission furnace on the market,2 it emits 65 percent less nitrogen oxide than standard low-NOx furnaces. Less of this gas helps keeps the air and plants 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 manage humidity and distribute healthier air.
  • iComfort®-enabled technology—, when used with an iComfort® S30 Ultra Smart Thermostat, picks up on your family’s calendar to set heating for energy savings.
  • SilentComfort™ technology and sound-absorbing insulation keeps your furnace quiet.
  • Insulated blower component keeps in 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, dependable heating with the SL297NV gas furnace. In addition to the likelihood for heating savings, this furnace can also help preserve the environment. The SL297NV is the first lowest emission furnace on the market,1 emitting 65 percent less nitrogen oxide than standard low-NOx furnaces. Lower emissions mean cleaner air and heartier plants. This furnace has received ENERGY STAR® certification 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 costs.
  • Intuitive fan mode that regulates humidity levels and repeatedly refines air.
  • iComfort®-enabled technology, when linked with an iComfort® S30 Ultra Smart Thermostat, picks up on your family’s activities to modify heating for energy savings.
  • SilentComfort™ technology and sound-absorbing insulation provide quiet operation.
  • Dual-fuel capable—Can be combined with an electric Lennox® heat pump for peak efficiency.
  • SureLight® ignition ensures efficient performance.
  • Insulated blower component limits heat loss.
  • Stainless-steel secondary heat exchanger holds on to more heat, allowing the furnace to achieve 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 bills while having 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 most frigid days. With an efficiency rating of up to 80% AFUE,1 80 cents of every dollar you spend on gas is converted into to usable heat. You can also feel good knowing the SL280NV is a green choice. As the first lowest emission furnace on the market,2 it emits 65 percent less nitrogen oxide than standard low-NOx furnaces. Less of this gas helps keeps the air and plants 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 manage humidity and distribute healthier air.
  • iComfort®-enabled technology, when used with an iComfort® S30 Ultra Smart Thermostat, picks up on your family’s calendar to set heating for energy savings.
  • SilentComfort™ technology and sound-absorbing insulation keeps your furnace quiet.
  • Dual-fuel capable—Install with an electric Lennox® heat pump for peak efficiency.
  • SureLight® ignition provides efficient operation.
  • Insulated blower component keeps in 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 plan for a gas furnace maintenance visit? We’ve got you covered. Our staff in Mobile is trained, experienced and available to help. Set up an appointment or call 251-210-7178 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.