Some of the Best Gas Furnaces You Can Buy in Westminster

If you’re searching for a gas furnace replacement in Denver, our Dave Lennox Signature Collection gas furnaces are an excellent choice. These products are two of the quietest gas furnaces available and are extremely energy efficient.

We’ll start with energy efficiency. Our Dave Lennox Signature Collection gas furnaces feature variable speed motors, which limit energy use by only working fans at full speed when extreme heat is required. Variable speed motors use 2/3 less energy than single speed motors and can help you save hundreds on utility expenses each year compared to other furnaces.

More details for each Dave Lennox Signature Collection gas furnace model are included below. If you want to talk with a True Heating & Cooling team member about one of our products in Denver, call 720-316-1898 or set up an appointment online.

SLP98V Variable-Capacity Gas Furnace

You’ll enjoy the high efficiency of this gas furnace. It’s earned the ENERGY STAR® label for meeting EPA efficiency standards, and it has received an annual fuel utilization efficiency (AFUE) rating* of 98.2%. Combined, these two ratings help you save hundreds annually on your utility expenses. Learn about some of 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, automatically making adjustments as necessary to provide maximum fuel efficiency
  • iComfort®-enabled technology—allows the furnace, when installed with the easy-to-use programmable iComfort Wi-Fi® thermostat, to generate even better performance and efficiency
  • PreciseComfort™ technology provides superior control
  • SilentComfort technology for some of the quietest operation you can find
  • SureLight® ignitor for an efficient performance
  • Insulated blower compartment to keep air in and reduce 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 costs while keeping your home cozy all winter. Even on the coldest days, its quiet, two-stage heating will keep temperatures regular while using as little gas 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 makes 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 potentially save you more money on energy costs.
  • Ultra-low speed continuous fan adjusts humidity and delivers healthier air.
  • iComfort®-enabled technology—when paired with an iComfort® S30 Ultra Smart Thermostat, adjusts to your family’s routine and sets heating for energy savings.
  • SilentComfort™ technology and sound-absorbing insulation ensures quiet heating.
  • Dual-fuel capable—Pair with an electric Lennox® heat pump for highest efficiency.
  • SureLight® ignition gives efficient performance.
  • Insulated blower component hangs 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

True Heating & Cooling in Westminster is ready to help with any of your gas furnace replacement, repair or maintenance needs. Call 720-316-1898 or use our online scheduler to make 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.