Some of the Best Gas Furnaces You Can Buy in Richardson

Top-of-the-line Dave Lennox Signature® Collection gas furnaces are some of the best. They’re also some of the quietest operating systems you can buy and offer efficient heating for your Dallas area home.

Our Dave Lennox Signature Collection gas furnaces boast variable speed motors, which enable more comfort than older single speed furnaces. Variable speed furnaces’ blower fans start up slowly and only operate at maximum speed when a much higher temperature is demanded. These furnaces could save your family a substantial amount on your energy bills.

Find out more about our Dave Lennox Signature Collection furnaces below. When you’re ready to take the next step in your gas furnace replacement process, give Hammack Service Company in Richardson a call at 972-351-8874 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’ll see significant 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 great for homes in Richardson for its variety of additional features, such as:

  • Efficiency rating of up to 98.7% AFUE*can save you money 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 outstanding 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 bills while gaining outstanding comfort all winter long with the SL280NV gas furnace. Its quiet, two-stage heating will keep temperatures balanced 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 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 means air and plants stay healthy. This furnace also offers:

  • Efficiency rating of up to 80% AFUE1 likely helping you save on energy costs annually.
  • Ultra-low speed continuous fan can help control humidity and help provide healthier air.
  • iComfort®-enabled technology—, when linked with an iComfort® S30 Ultra Smart Thermostat, learns your family’s schedule 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, dependable heating with the SL297NV gas furnace. In addition to the possibility for utility savings, this furnace can also help protect 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 cleaner air and heartier plants. This furnace has received ENERGY STAR® designation for its energy savings and also includes:

  • Efficiency rating of up to 97.5% AFUE2—potentially saving you hundreds of dollars each year on energy bills.
  • Intuitive fan mode that controls humidity levels and repeatedly cleans air.
  • iComfort®-enabled technology, when installed with an iComfort® S30 Ultra Smart Thermostat, adapts to 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 top efficiency.
  • SureLight® ignition delivers efficient performance.
  • Insulated blower component limits heat loss.
  • Stainless-steel secondary heat exchanger catches more heat, allowing the furnace to operate at increased 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

Need help with a gas furnace repair or want to schedule a gas furnace maintenance visit? We can take care of it. Our staff in Richardson is trained, experienced and eager to help. Set up an appointment or call 972-351-8874 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.