FUJITSU FF80ST307517DZSNA*S
gas furnace · 60 MBTUH output · non-condensing
A gas furnace that turns 80% of its fuel into heat in your home (AFUE 80).
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This unit isn't stocked for DIY online. It's installed by a licensed pro, who also handles the gas line, venting, permit and warranty. Get a few local quotes so you can compare the installed price.
Get install quotesAt a glance
Who it's for
Heating a home that needs about 60,000 BTU/h of delivered heat, replacing an older gas furnace.
The standout number
AFUE 80% — a non-condensing furnace; efficient models reach 95–98%.
The catch
At AFUE 80% it wastes more fuel up the flue than a 95%+ condensing furnace — worth the math where winters are long.
The Verified Label — every certified spec
cert date not published
status: Active
Heating efficiency — source: AHRI / ENERGY STAR
Capacity, fuel & blower — source: AHRI
Operating cost — computed by Verified HVAC Data
Heating cost
per MMBtu of delivered heat, at U.S. average gas prices
Vs. electric resistance
cheaper to run than baseboard / strip heat ($55.19/MMBtu)
Computed from this furnace's AFUE × EIA U.S. average gas price. Your local price changes the answer — run it with your rates →
Identity & certification
How it ranks
Where this furnace sits among the 14,408 residential furnaces we track on AFUE — the number that decides how much fuel becomes heat. Percentile is computed from our corpus (higher = better).
AFUE
Better than 13%
of the 14,408 residential furnaces with a published AFUE
Rebates & incentives
High-efficiency gas furnaces (95%+ AFUE) sometimes qualify for utility rebates, but the bigger incentive money in 2026 targets heat pumps, not furnaces. The federal 25C credit expired December 31, 2025. Check what applies where you live on our rebates page, and compare a furnace's running cost against a heat pump on our operating-cost calculator.
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Frequently asked questions
How efficient is the FUJITSU FF80ST307517DZSNA*S?
Its AFUE is 80%, meaning 80% of the gas it burns becomes heat in your home and the rest goes up the flue. Below 90% it is a non-condensing furnace; the high-efficiency class runs 95–98% AFUE.
What does the FUJITSU FF80ST307517DZSNA*S cost to run?
About $21.00 per MMBtu of delivered heat at U.S. average gas prices, roughly 62% less than electric resistance heat. Your local fuel price changes the number — run it in our operating-cost calculator.
How big is the FUJITSU FF80ST307517DZSNA*S?
It delivers about 60 MBTUH (60,000 BTU/h) of heat from a 75 MBTUH input. Furnace sizing should follow a Manual J load calculation, not a rule of thumb — an oversized furnace short-cycles and wastes fuel.
Does the FUJITSU FF80ST307517DZSNA*S have a variable-speed blower?
Yes — it uses an ECM (electronically commutated) blower motor, which uses far less electricity than an older PSC motor and runs quieter at low speed. That lowers the fan's share of your power bill, especially if you run the fan for circulation.
Where can I buy the FUJITSU FF80ST307517DZSNA*S?
Furnaces are installed by a licensed HVAC contractor, who runs the gas line, sets the venting, pulls the permit and commissions it. Get a few installed quotes and compare the total, not just the equipment price.
Sources. Performance ratings from the AHRI Directory (cited by reference number 208430077; not a verbatim mirror) and ENERGY STAR certification data. Heating cost ($/MMBtu), savings and percentile figures are computed by Verified HVAC Data from published ratings and EIA U.S. average energy prices — see our methodology. We publish no star ratings and take no payment for placement. "Not published" means the source registry doesn't disclose it — we never fill a spec with a guess.