Merit® Series Gas Furnaces Provide Reliable Heat When You Need it Most

You’ll find a wide variety of affordable and energy efficient gas furnaces at Falls Mechanical Services LLC in Great Falls. Our Merit Series products have earned high annual fuel utilization efficiency (AFUE) ratings, which measure how efficiently the equipment converts fuel to energy. Each model is also constructed for reliability and a long product life, giving you the comfort you need throughout the coldest months of the year. Find specifics about each system below, and call us at 406-761-7283 or set up an appointment online to talk to one of our team members a gas furnace replacement for your home.

ML195 Gas Furnace

You don’t always have to spend a fortune on highly energy efficient products that can help reduce your utility expenses. Our ML195 gas furnace is affordable for most all budgets and has achieved an energy efficiency rating of 95% AFUE,* one of the best around. This furnace is the ideal choice for impressive comfort, efficiency and reliability.

  • Sealed blower compartment for a quiet operation and improved comfort
  • Stainless steel secondary heat exchanger – enables the furnace to realize higher efficiency levels by capturing extra heat
  • SureLight® ignitor allows reliable operation and helps lengthen product life
  • Duralok Plus® heat exchanger – made of patented aluminized steel to ensure reliability and efficiency
  • 20-Year Limited Warranty on heat exchanger
  • 5-Year Limited Warranty on covered components (this product may be eligible for valuable 10-year Limited Extended Warranty coverage)
ML195 Gas Furnace
Efficiency Rating (SEER): 95
Price Guide: $

ML193 Gas Furnace

If you’re looking for reliability in a gas furnace for your Great Falls area home, the ML193, which is full of features to improve reliability, is for you. Its Duralok Plus® heat exchanger, SureLight® ignitor and durable steel cabinet all constructed with materials that help improve reliability and increase product life. Finally, with an AFUE rating* of 93%, this energy efficient gas furnace can help reduce those monthly energy bills.

  • Sealed blower compartment for a quiet operation and less than 1% leakage at 1.0” ESP
  • SureLight® ignitor offers reliable operation
  • Duralok Plus® heat exchanger – helps improve energy efficiency and reliability
  • Dual-fuel capability – when combined with an electric heat pump, this feature can help increase fuel efficiency by alternating between electric and gas fuel
  • 20-Year Limited Warranty on heat exchanger
  • 5-Year Limited Warranty on covered components (this product may be eligible for valuable 10-year Limited Extended Warranty coverage)
ML193 Gas Furnace
Efficiency Rating (SEER): 93
Price Guide: $

ML180 Gas Furnace

Economical is the perfect word to describe the ML180 gas furnace. Its 80% AFUE efficiency rating* which means the unit efficiently converts energy into heat, and the sealed blower compartment keeps this heat inside to minimize losses and improve efficiency. To add to its great features, this furnace is also affordably priced to fit nearly any budget.

  • Insulated blower compartment for a quiet operation and a more peaceful home
  • Dual-fuel capability enables you to connect the furnace with an electric heat pump and alternate between gas and electric heat for efficient energy use and decreased utility expenses
  • Duralok Plus® heat exchanger increases reliability and efficiency
  • Hot surface igniter – controls operation to maintain a reliable and efficient performance
  • 20-Year Limited Warranty on heat exchanger
  • 5-Year Limited Warranty on covered components (this product may be eligible for valuable 10-year Limited Extended Warranty coverage)
ML180 Gas Furnace
Efficiency Rating (SEER): 80
Price Guide: $

Falls Mechanical Services LLC can assist with all your gas furnace replacement needs. If you’re needing gas furnace repairs or maintenance in Great Falls, our staff has you covered. Simply give us a call at 406-761-7283 or use our online scheduler to set up an 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.