Some of the Best Gas Furnaces You Can Buy in Mount Pleasant

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

Our Dave Lennox Signature Collection gas furnaces feature variable speed motors, which enable more comfort than older single speed furnaces. Variable speed furnaces’ blower fans start up slowly and only operate at full speed when a much higher temperature is demanded. These furnaces may save your family hundreds on utility expenses.

Find out more about our Dave Lennox Signature Collection furnaces below. When you’re ready to discover which gas furnace replacement option is right for you, give Olde Towne Heating & Air in Mount Pleasant a call at 843-485-0967 or set up your appointment online.

SLP98V Variable-Capacity Gas Furnace

If you’re looking for outstanding energy efficiency, the SLP98V is the gas furnace for you. With a 98.7% annual fuel utilization efficiency (AFUE) rating*, you’ll see significant 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 ideal for homes in Mount Pleasant for many reasons, including:

  • 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, making changes automatically to achieve maximum fuel efficiency
  • iComfort®-enabled technology—allows the furnace, when installed with the easy-to-use programmable iComfort Wi-Fi® thermostat, to provide even better performance and efficiency
  • PreciseComfort technology provides outstanding temperature control
  • SilentComfort technology allows the system to perform quietly
  • SureLight® ignitor for an efficient performance
  • Insulated blower compartment to keep air in and minimize 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 benefiting from 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 chilliest 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 likely helping you save on energy costs annually.
  • Ultra-low speed continuous fan can help control humidity and contribute to healthier air.
  • iComfort®-enabled technology—, when used with an iComfort® S30 Ultra Smart Thermostat, adjusts to your family’s schedule to modify 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, consistent heating with the SL297NV gas furnace. In addition to the potential for utility savings, this furnace can also help protect the environment. The SL297NV is the first lowest emission furnace on the market,1 creating 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 each year on energy bills.
  • Intuitive fan mode that manages humidity levels and repeatedly refines air.
  • iComfort®-enabled technology, when paired with an iComfort® S30 Ultra Smart Thermostat, adapts to your family’s schedule to adjust heating for energy savings.
  • SilentComfort™ technology and sound-absorbing insulation offer quiet operation.
  • Dual-fuel capable—Can be combined with an electric Lennox® heat pump for top efficiency.
  • SureLight® ignition ensures efficient operation.
  • Insulated blower component minimizes heat loss.
  • Stainless-steel secondary heat exchanger catches extra heat, allowing the furnace to attain 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 set up a gas furnace maintenance visit? We can handle it all. Our staff in Mount Pleasant is trained, experienced and available to help. Set up an appointment or call 843-485-0967 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.