Some of the Best Gas Furnaces You Can Buy in Rapid City

If you’re in need of a gas furnace replacement in Western South Dakota, our Dave Lennox Signature Collection gas furnaces are an excellent choice. These models are a couple of the quietest gas furnaces you can find and are highly energy efficient.

We’ll start with energy efficiency. Our Dave Lennox Signature Collection gas furnaces include variable speed motors, which limit energy use by only running fans at full speed when extreme heat is required. Variable speed motors use 2/3 less energy than single speed motors and may help your family save hundreds of dollars on yearly utility expenses compared to older furnaces.

Product details for each Dave Lennox Signature Collection gas furnace model are provided below. If you’d like to talk with a Street Heating and Cooling staff member about one of our products in Western South Dakota, call 605-206-3915 or schedule an appointment online.

SLP98V Variable-Capacity Gas Furnace

You’ll enjoy the high efficiency of this gas furnace. It’s ENERGY STAR® qualified for meeting EPA efficiency standards, and it has 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. Learn about some of the SLP98V’s other impressive features, including:

  • Efficiency rating of up to 98.2% AFUE*—helps reduce your 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 automatically as necessary to allow 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 superior control
  • SilentComfort technology helps the system run quietly
  • SureLight® ignitor for an efficient performance
  • Insulated blower compartment to keep air in and minimize 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 decrease your energy expenses while keeping your home comfortable all winter. Even on frigid days, its quiet, two-stage heating will keep temperatures regular while using as little fuel as possible. You can also breathe easy knowing this furnace contributes to a healthier environment—inside and outside. As the first lowest emission furnace on the market,1 it produces 65 percent less nitrogen oxide than standard low-NOx furnaces. Less NOx means cleaner air and plants. This furnace also features:

  • Efficiency rating of up to 80% AFUE2—which can likely save you more money on energy expenses.
  • Ultra-low speed continuous fan adjusts humidity and delivers healthier air.
  • iComfort®-enabled technology—when installed 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 operation.
  • Dual-fuel capable—Install with an electric Lennox® heat pump for top efficiency.
  • SureLight® ignition gives efficient performance.
  • Insulated blower component holds 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 flawlessly adjusts to your lifestyle with the SL297NV gas furnace. Not only can this furnace help you save on energy costs, it’s an environmentally responsible choice. As the first lowest emission furnace on the market,1 the SL297NV emits 65 percent less nitrogen oxide than standard low-NOx furnaces. You can rest easy knowing your heater is contributing to cleaner air and stronger plants. Recognized with ENERGY STAR® accreditation, this furnace has the capacity to save you hundreds of dollars each year on utility costs. It also features:

  • Efficiency rating of up to 97.5% AFUE2—potentially 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, adjusts to your family’s activities for the highest energy savings.
  • SilentComfort™ technology and sound-absorbing insulation means your furnace will heat quietly.
  • Dual-fuel capable—Can be linked with an electric Lennox® heat pump for maximum efficiency.
  • SureLight® ignition gives efficient heating.
  • Insulated blower component limits heat loss.
  • Stainless-steel secondary heat exchanger traps additional heat, permitting the furnace to attain 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

Street Heating and Cooling in Rapid City is eager to help with any of your gas furnace replacement, repair or maintenance needs. Call 605-206-3915 or use our online scheduler to set up 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.