Some of the Best Gas Furnaces You Can Buy in Great Falls

Innovative Dave Lennox Signature® Collection gas furnaces are some of the best of the best. They also have some of the quietest heating around and provide efficient heating for your Great Falls area home.

These 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 maximum speed when there’s an extreme demand for heat. These furnaces may save your family a substantial amount on your energy bills.

Learn about each of our Dave Lennox Signature Collection furnaces and features here. When you’re ready to move forward with your gas furnace replacement, give Falls Mechanical Services LLC in Great Falls a call at 406-761-7283 or make an appointment online.

SLP98V Variable-Capacity Gas Furnace

If high energy efficiency is what you want, the SLP98V is the gas furnace for you. With a 98.7% annual fuel utilization efficiency (AFUE) rating*, you may see more energy savings. This system 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 Great Falls 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 operate 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

SL280V Variable Speed Gas Furnace

It’s hard to go wrong with an SL280V gas furnace if you’re in Great Falls. This two-stage heating system achieved an 80% AFUE energy efficiency rating, which may help reduce your utility expenses. It also includes SilentComfort™ technology to produce heat so quietly you may forget it’s even there. With the SL280V, you’ll enjoy cozy and reliable warmth. Other great features include:

  • Efficiency rating of 80% AFUE*
  • iComfort®-enabled technology—allows the furnace, when installed with the easy-to-use programmable iComfort Wi-Fi® thermostat, to provide even better efficiency and performance
  • SureLight® ignition for an efficient performance
  • Insulated blower compartment keeps the heat inside
  • 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

Need help with a gas furnace repair or want to plan for a gas furnace maintenance visit? We can handle it all. Our staff in Great Falls is trained, experienced and ready to help. Set up an appointment or call 406-761-7283 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.