Some of the Best Gas Furnaces You Can Buy in Colorado Springs

If you’re looking for a gas furnace replacement in El Paso County, our Dave Lennox Signature Collection gas furnaces are the best option. These models are a couple of the quietest gas furnaces available and are very energy efficient.

We’ll start with energy efficiency. Our Dave Lennox Signature Collection gas furnaces are built with variable speed motors, which save energy by only working fans at full speed when an extreme change in heat is required. Variable speed motors use 66% less energy than single speed motors and could help you save big on utility expenses each year compared to other furnaces.

Product details for each Dave Lennox Signature Collection gas furnace model are provided below. If you want to talk with a Mitchell Heating team member about one of our products in El Paso County, call 719-422-4236 or make an appointment online.

SLP98V Variable-Capacity Gas Furnace

You’ll enjoy the high efficiency of this gas furnace. It’s certified by ENERGY STAR® for meeting EPA efficiency standards, and it has also earned an annual fuel utilization efficiency (AFUE) rating* of 98.2%. These two efficiency ratings will help you receive lower utility bills every year. Find out more about the SLP98V’s other great features, including:

  • Efficiency rating of up to 98.2% AFUE*—helps you save on 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 on its own as necessary to achieve maximum fuel efficiency
  • iComfort®-enabled technology—enables the furnace, when installed with the easy-to-use programmable iComfort Wi-Fi® thermostat, to provide even better performance and efficiency
  • PreciseComfort™ technology provides the best in temperature control
  • SilentComfort technology allows the system to run quietly
  • SureLight® ignitor for an efficient performance
  • Insulated blower compartment to trap heat 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 reduce your heating costs while keeping your home comfortable all winter. Even on the chilliest days, its quiet, two-stage heating will keep temperatures consistent while using as little fuel as possible. You can also breathe easy knowing this furnace contributes to a better environment—inside and outside. As the first lowest emission furnace on the market,1 it emits 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 possibly save you more money on utility costs.
  • Ultra-low speed continuous fan regulates humidity and provides healthier air.
  • iComfort®-enabled technology—when linked with an iComfort® S30 Ultra Smart Thermostat, adjusts to your family’s routine and adjusts heating for energy savings.
  • SilentComfort™ technology and sound-absorbing insulation provides quiet heating.
  • Dual-fuel capable—Pair with an electric Lennox® heat pump for the most efficiency.
  • SureLight® ignition gives efficient performance.
  • 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.
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 smoothly adapts to your daily life with the SL297NV gas furnace. Not only can this furnace help you save on energy bills, it’s an environmentally friendly 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 resulting in fresher air and stronger plants. Recognized with ENERGY STAR® certification, this furnace has the capability to save you hundreds of dollars annually on heating bills. It also features:

  • Efficiency rating of up to 97.5% AFUE2—possibly keeping more money in your pocket due to lower 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, learns your family’s schedule for optimal energy savings.
  • SilentComfort™ technology and sound-absorbing insulation means your furnace will heat quietly.
  • Dual-fuel capable—Can be used with an electric Lennox® heat pump for highest efficiency.
  • SureLight® ignition provides efficient operation.
  • Insulated blower component stops heat loss.
  • Stainless-steel secondary heat exchanger catches additional heat, allowing the furnace to reach 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

The SL280NV gas furnace can help reduce your heating costs while keeping your home comfortable all winter. Even on the chilliest days, its quiet, two-stage heating will keep temperatures consistent while using as little fuel as possible. You can also breathe easy knowing this furnace contributes to a better environment—inside and outside. As the first lowest emission furnace on the market,2 it emits 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% AFUE1—which can possibly save you more money on utility costs.
  • Ultra-low speed continuous fan regulates humidity and provides healthier air.
  • iComfort®-enabled technology, when linked with an iComfort® S30 Ultra Smart Thermostat, adjusts to your family’s routine and adjusts heating for energy savings.
  • SilentComfort™ technology and sound-absorbing insulation provides quiet heating.
  • Dual-fuel capable—Pair with an electric Lennox® heat pump for the most efficiency.
  • SureLight® ignition gives efficient performance.
  • 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

Mitchell Heating in Colorado Springs is eager to help with any of your gas furnace replacement, repair or maintenance needs. Call 719-422-4236 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.