Some of the Best Gas Furnaces You Can Buy in Saint Louis

If you’re looking for a gas furnace replacement in Saint Louis, our Dave Lennox Signature Collection gas furnaces are the best option. These products are a couple 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 save energy by only working fans at full speed when extreme heat is required. Variable speed motors use two-thirds less energy than single speed motors and can help you save hundreds on yearly utility expenses compared to standard furnaces.

Product specifications for each Dave Lennox Signature Collection gas furnace model are explained below. If you’d like to talk with a Morgner Incorporated Air Conditioning & Heating team member about one of our products in Saint Louis, call 314-961-0875 or schedule an appointment online.

SLP98V Variable-Capacity Gas Furnace

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

  • Efficiency rating of up to 98.2% AFUE*—can save you money on 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 on its own 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 offer 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

SL280V Variable Speed Gas Furnace

If you need a gas furnace replacement and you’re in Saint Louis, the SL280V gas furnace could be the best one for you. Not only has it earned an efficiency rating of 80% AFUE*, but it also uses two-stage heating to improve energy efficiency. Additionally, with SilentComfort™ technology, this system is up to 4.5 times quieter than competing models** to help you relax in the peaceful warmth of your home more easily. Take a look at the other impressive features of this model, including:

  • Efficiency rating of 80% AFUE*
  • 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
  • SureLight® ignition for an efficient performance
  • Insulated blower compartment traps the heat so your system doesn’t have to work as hard to warm up the air
  • 10-Year Limited Warranty on covered components
  • 20-Year Limited Warranty on heat exchanger
SL280V Variable Speed Gas Furnace
Efficiency Rating (SEER): up to 80
Price Guide: $$$Energy Star badge

Morgner Incorporated Air Conditioning & Heating in Saint Louis is available to help with any of your gas furnace replacement, repair or maintenance needs. Call 314-961-0875 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.