Tempstar · Ion Series
Tempstar Ion System 97 (F97CMN)
97% AFUE Variable Speed gas furnace with a variable-speed ECM blower.
Specifications
AFUE Efficiency
97%
Heating Stage
Variable Speed
Blower Motor
variable-speed ECM
Sound Level
61 dB
ENERGY STAR
Certified
BTU Range
40,000–120,000
Heat Exchanger Warranty
Lifetime
Parts Warranty
10 years
Key features
- Variable-speed ECM blower
- Whisper-quiet operation
- Superior air filtration
- Consistent room-to-room temps
Pros & cons
Pros
- Excellent comfort & quiet
- Lower electricity use
- Great with air cleaners
Cons
- Higher upfront cost
Ion System 97 (F97CMN) reviews
Exactly what we needed
"Survived our first -30 cold snap without a hiccup. Steady, warm, and the variable-speed blower is so quiet we forget it's running."
— Daniel R., Burnaby · 2025-05-20
Warm house, lower gas bill
"The monthly payment made the high-efficiency model affordable. Rebate covered a big chunk and the savings on our bills basically cover the payment."
— Sophie G., Surrey · 2025-06-27
Professional from quote to install
"Replaced our 20-year-old furnace and the difference is night and day. The house heats evenly and it's noticeably quieter. Our gas bill dropped about 25% over the winter."
— Jennifer M., Toronto · 2025-07-07
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AFUE
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dB
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Rating
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AFUE
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dB
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Rating
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dB
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Rating
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