Best HVAC · 2026
Best Gas Furnaces 2026
Most efficient major brand: Lennox SLP99UH090XV60C, 99% AFUE (the share of gas that becomes heat). On Amazon: Goodman GRVT960403BN, 97.5% AFUE. A licensed installer still has to fit it.
Data current as of October 23, 2026 · 3,291 furnaces · source AHRI + ENERGY STAR
Our picks
Most efficient major brand
The highest AFUE (99%) from a major brand: almost every dollar of gas becomes heat in your home.
$16.97Fuel cost per million BTU of heat
99%AFUE
86MBTUH
Sold through installers. Full specs
Best you can buy on Amazon
The highest AFUE (97.5%) among furnaces we found for sale on Amazon as that exact model, 39 MBTUH. Store listings round it to the nominal 96%; 97.5% is the certified AHRI rating. You still need a licensed installer.
$17.23Fuel cost per million BTU of heat
97.5%AFUE
39MBTUH
Most heat, still efficient
The largest output among 95%+ AFUE major-brand furnaces (135 MBTUH), for a big, cold home.
$17.68Fuel cost per million BTU of heat
95%AFUE
135MBTUH
Sold through installers. Full specs
Fuel cost per million BTU of heat is what the gas costs to put 1 million BTU of heat into your home, at U.S. average gas prices. Lower is cheaper to run. Picks are chosen by a single verifiable metric each (stated above) — not an opinion score. Prefer a different priority? Re-sort the full field below. Want the cost at your energy prices? Run the operating-cost calculator. Units sold under several brand names appear once.
Check the size before you buy the Amazon pick. The Goodman GRVT960403BN puts out 39 thousand BTU of heat an hour. That suits a small or well-sealed home. A bigger or colder home needs more. Find your size.
Bigger furnaces at 95% AFUE or more that Amazon sells as the exact model:
- Goodman GD9T960603BN: 58 thousand BTU, 97% AFUE Check price at Amazon →
- Goodman GR9S960804CN: 78 thousand BTU, 97% AFUE Check price at Amazon →
- Goodman GDVM971005CN: 97 thousand BTU, 97% AFUE Check price at Amazon →
- Goodman GD9S961205DN: 114 thousand BTU, 95% AFUE Check price at Amazon →
AFUE here is the certified AHRI rating. Amazon listings often show the rounded figure from the model number, such as 96%.
No floor drain near the furnace? See which condensate pump you need. One cold room? See what a space heater costs to run in your state, and when it beats the furnace. Dry air in winter? See 54 humidifiers checked against their own numbers.
The full field — sortable
Click any column to re-sort (sorting the top 200 below). Every row links to that furnace's full Verified Label with computed operating cost.
| Model | AFUE | Output MBTUH | Input MBTUH | $/MMBtu | Fuel | Buy | |
|---|---|---|---|---|---|---|---|
 | LENNOX SLP99UH090XV60Ccondensing · ECM blower | 99% | 86 | 88 | $16.97 | Gas / propane | — |
| CARRIER 59MN7C060C21--20condensing · ECM blower | 98.5% | 60 | 61 | $17.06 | Gas / propane | — |
| LENNOX SLP99UH135XV60Dcondensing · ECM blower | 98.4% | 129 | 132 | $17.07 | Gas / propane | — |
| BRYANT 987MC60060C21condensing · ECM blower | 98.3% | 60 | 61 | $17.09 | Gas / propane | — |
| LENNOX SLP99UH090XV48Ccondensing · ECM blower | 98.2% | 86 | 88 | $17.11 | Gas / propane | — |
| LENNOX SLP99UH110XV60Ccondensing · ECM blower | 98.1% | 107 | 110 | $17.13 | Gas / propane | — |
| LENNOX SLP99UH090XV36Ccondensing · ECM blower | 98.1% | 86 | 88 | $17.13 | Gas / propane | — |
| LENNOX SLP99UH070XV36Bcondensing · ECM blower | 98.1% | 64 | 66 | $17.13 | Gas / propane | — |
| GE NF98U135M5DRcondensing · ECM blower | 98% | 129 | 132 | $17.14 | Gas / propane | — |
| AIREASE A98USMV135D20Scondensing · ECM blower · also sold as Armstrong AIR | 98% | 129 | 132 | $17.14 | Gas / propane | — |
| COLEMAN BY JOHNSON CONTROLS CP9C120D20MP13condensing · ECM blower · also sold as Kenmore, Champion Heating AND Cooling, Fraser-johnston +3 | 98% | 116 | 120 | $17.14 | Gas / propane | — |
| FUJITSU FF98MV511524UPScondensing · ECM blower | 98% | 110 | 112 | $17.14 | Gas / propane | — |
| RHEEM R98MV1155A24UPScondensing · ECM blower · also sold as Whirlpool, Friedrich, Mainline +3 | 98% | 110 | 112 | $17.14 | Gas / propane | — |
| GE NF98U110M5CRcondensing · ECM blower | 98% | 107 | 110 | $17.14 | Gas / propane | — |
| AIREASE A98USMV110C20Scondensing · ECM blower · also sold as Armstrong AIR | 98% | 107 | 110 | $17.14 | Gas / propane | — |
| FUJITSU FF98MV510021UPScondensing · ECM blower | 98% | 96 | 98 | $17.14 | Gas / propane | — |
| RHEEM R98MV1005A21UPScondensing · ECM blower · also sold as Whirlpool, Friedrich, Mainline +3 | 98% | 96 | 98 | $17.14 | Gas / propane | — |
| GE NF98U090M5CRcondensing · ECM blower | 98% | 86 | 88 | $17.14 | Gas / propane | — |
| GE NF98U090M4CRcondensing · ECM blower | 98% | 86 | 88 | $17.14 | Gas / propane | — |
| GE NF98U090M3CRcondensing · ECM blower | 98% | 86 | 88 | $17.14 | Gas / propane | — |
| AIREASE A98USMV090C12Scondensing · ECM blower · also sold as Armstrong AIR | 98% | 86 | 88 | $17.14 | Gas / propane | — |
| FUJITSU FF98MV508521UPScondensing · ECM blower | 98% | 82 | 84 | $17.14 | Gas / propane | — |
| RHEEM R98MV0855A21UPScondensing · ECM blower · also sold as Whirlpool, Friedrich, Mainline +3 | 98% | 82 | 84 | $17.14 | Gas / propane | — |
| ECOER EVMF98M28080B3Lcondensing · ECM blower · also sold as Yiso | 98% | 78 | 80 | $17.14 | Gas / propane | — |
| FUJITSU FF98MV307017UPScondensing · ECM blower | 98% | 69 | 70 | $17.14 | Gas / propane | — |
| RHEEM R98MV0703A17UPScondensing · ECM blower · also sold as Whirlpool, Friedrich, Mainline +3 | 98% | 69 | 70 | $17.14 | Gas / propane | — |
| GE NF98U070M3BRcondensing · ECM blower | 98% | 64 | 66 | $17.14 | Gas / propane | — |
| AIREASE A98USMV070B12Scondensing · ECM blower · also sold as Armstrong AIR | 98% | 64 | 66 | $17.14 | Gas / propane | — |
| KENMORE G97CMN0602120Bcondensing · ECM blower · also sold as Keeprite, ICP Commercial, Heil +3 | 98% | 60 | 61 | $17.14 | Gas / propane | — |
| FUJITSU FF98MV306017UPScondensing · ECM blower | 98% | 55 | 56 | $17.14 | Gas / propane | — |
| RHEEM R98MV0603A17UPScondensing · ECM blower · also sold as Whirlpool, Friedrich, Mainline +3 | 98% | 55 | 56 | $17.14 | Gas / propane | — |
| COLEMAN BY JOHNSON CONTROLS CP9C100C16MP13condensing · ECM blower · also sold as Kenmore, Champion Heating AND Cooling, Fraser-johnston +3 | 97.7% | 97 | 100 | $17.20 | Gas / propane | — |
| COLEMAN BY JOHNSON CONTROLS CP9C080C16MP13condensing · ECM blower · also sold as Kenmore, Champion Heating AND Cooling, Fraser-johnston +3 | 97.7% | 78 | 80 | $17.20 | Gas / propane | — |
| LENNOX SLP99DF110XV60Ccondensing · ECM blower | 97.5% | 107 | 110 | $17.23 | Gas / propane | — |
| ECOER EVMF98M35100C5Lcondensing · ECM blower · also sold as Yiso | 97.5% | 98 | 100 | $17.23 | Gas / propane | — |
| LENNOX SLP99DF090XV60Ccondensing · ECM blower | 97.5% | 85 | 88 | $17.23 | Gas / propane | — |
| LENNOX SLP99DF090XV48Ccondensing · ECM blower | 97.5% | 85 | 88 | $17.23 | Gas / propane | — |
| LENNOX SLP99DF090XV36Ccondensing · ECM blower | 97.5% | 85 | 88 | $17.23 | Gas / propane | — |
| GE NF97X080V5CRcondensing · ECM blower | 97.5% | 78 | 80 | $17.23 | Gas / propane | — |
| GE NF97X080V4CRcondensing · ECM blower | 97.5% | 78 | 80 | $17.23 | Gas / propane | — |
| PHANTOM B97UR802V5CXcondensing · ECM blower | 97.5% | 78 | 80 | $17.23 | Gas / propane | — |
| PHANTOM B97UR802V4CXcondensing · ECM blower | 97.5% | 78 | 80 | $17.23 | Gas / propane | — |
| AIREASE A97US2V080C16Xcondensing · ECM blower · also sold as Armstrong AIR | 97.5% | 78 | 80 | $17.23 | Gas / propane | — |
| LENNOX SL297UH080NV60Ccondensing · ECM blower | 97.5% | 78 | 80 | $17.23 | Gas / propane | — |
| LENNOX SL297UH080NV48Ccondensing · ECM blower | 97.5% | 78 | 80 | $17.23 | Gas / propane | — |
| COLEMAN BY JOHNSON CONTROLS CP9C080B12MP13condensing · ECM blower · also sold as Kenmore, Champion Heating AND Cooling, Fraser-johnston +3 | 97.5% | 77 | 80 | $17.23 | Gas / propane | — |
| LENNOX SLP99DF070XV36Bcondensing · ECM blower | 97.5% | 64 | 66 | $17.23 | Gas / propane | — |
| GE NF97X060V3BRcondensing · ECM blower | 97.5% | 58 | 60 | $17.23 | Gas / propane | — |
| PHANTOM B97UR602V3BXcondensing · ECM blower | 97.5% | 58 | 60 | $17.23 | Gas / propane | — |
| AIREASE A97US2V060B12Xcondensing · ECM blower · also sold as Armstrong AIR | 97.5% | 58 | 60 | $17.23 | Gas / propane | — |
| LENNOX SL297UH060NV36Bcondensing · ECM blower | 97.5% | 58 | 60 | $17.23 | Gas / propane | — |
| COLEMAN BY JOHNSON CONTROLS CP9C060B12MP13condensing · ECM blower · also sold as Kenmore, Champion Heating AND Cooling, Fraser-johnston +3 | 97.5% | 58 | 60 | $17.23 | Gas / propane | — |
| GE NF97X040V3BRcondensing · ECM blower | 97.5% | 39 | 40 | $17.23 | Gas / propane | — |
| PHANTOM B97UR402V3BXcondensing · ECM blower | 97.5% | 39 | 40 | $17.23 | Gas / propane | — |
| AIREASE A97US2V040B12Xcondensing · ECM blower · also sold as Armstrong AIR | 97.5% | 39 | 40 | $17.23 | Gas / propane | — |
| LENNOX SL297UH040NV36Bcondensing · ECM blower | 97.5% | 39 | 40 | $17.23 | Gas / propane | — |
| DAIKIN DR96TC0403BNcondensing · ECM blower | 97.5% | 39 | 40 | $17.23 | Gas / propane | — |
 | GOODMAN GRVT960403BNcondensing · ECM blower · also sold as Amana | 97.5% | 39 | 40 | $17.23 | Gas / propane | Price |
| CARRIER 59MN7C080C17--14condensing · ECM blower | 97.4% | 78 | 80 | $17.25 | Gas / propane | — |
| CARRIER 59MN7C060C17--14condensing · ECM blower | 97.4% | 59 | 60 | $17.25 | Gas / propane | — |
| CARRIER 59MN7C100C21--22condensing · ECM blower | 97.3% | 98 | 100 | $17.27 | Gas / propane | — |
| TRANE TUHMB060CCV3Vcondensing · ECM blower · also sold as American Standard | 97.3% | 58 | 60 | $17.27 | Gas / propane | — |
| DETTSON C15-M-Scondensing · ECM blower | 97.3% | 14 | 15 | $17.27 | Gas / propane | — |
| DETTSON C15-M-Vcondensing · ECM blower | 97.3% | 14 | 15 | $17.27 | Gas / propane | — |
| CARRIER 59MN7C120C24--22condensing · ECM blower | 97.2% | 117 | 120 | $17.28 | Gas / propane | — |
| CARRIER 59MN7C080C21--20condensing · ECM blower | 97.2% | 78 | 80 | $17.28 | Gas / propane | — |
| GE NF97U135T5DRcondensing · ECM blower | 97% | 128 | 132 | $17.32 | Gas / propane | — |
| LENNOX EL297UH135XE60Dcondensing · ECM blower | 97% | 128 | 132 | $17.32 | Gas / propane | — |
| LENNOX ML297UH135XV60Dcondensing · ECM blower | 97% | 127 | 132 | $17.32 | Gas / propane | — |
| KEPLER 97G2UH135DV20condensing · ECM blower · also sold as Concord, Ducane | 97% | 127 | 132 | $17.32 | Gas / propane | — |
| GE NF97U135V5DRcondensing · ECM blower | 97% | 127 | 132 | $17.32 | Gas / propane | — |
| COMFORT-AIRE GUH97T135D5MPcondensing · ECM blower · also sold as Century | 97% | 127 | 132 | $17.32 | Gas / propane | — |
| AIREASE A97US2V135D20Scondensing · ECM blower · also sold as Armstrong AIR | 97% | 127 | 132 | $17.32 | Gas / propane | — |
| LENNOX EL297UH135XV60Dcondensing · ECM blower | 97% | 127 | 132 | $17.32 | Gas / propane | — |
| TEMPSTAR F97CMN1202422Bcondensing · ECM blower · also sold as Kenmore, Keeprite, ICP Commercial +3 | 97% | 117 | 120 | $17.32 | Gas / propane | — |
| BRYANT 987MC66120C24condensing · ECM blower | 97% | 117 | 120 | $17.32 | Gas / propane | — |
| DETTSON C120-M-Vcondensing · ECM blower | 97% | 117 | 120 | $17.32 | Gas / propane | — |
| BOSCH BGH97M120D5Acondensing · ECM blower | 97% | 116 | 120 | $17.32 | Gas / propane | — |
| DAIKIN DR97MC1205DNcondensing · ECM blower | 97% | 116 | 120 | $17.32 | Gas / propane | — |
 | GOODMAN GRVM971205DNcondensing · ECM blower · also sold as Amana | 97% | 116 | 120 | $17.32 | Gas / propane | Price |
| YORK BY JOHNSON CONTROLS Y92E120D20SMPS1condensing · ECM blower · also sold as Kenmore, Champion Heating AND Cooling, Luxaire BY Johnson Controls +2 | 97% | 116 | 120 | $17.32 | Gas / propane | — |
| TEMPSTAR F97CTN1202422Acondensing · ECM blower · also sold as Kenmore, Keeprite, ICP Commercial +3 | 97% | 116 | 120 | $17.32 | Gas / propane | — |
| BRYANT 987TA66120C24condensing · ECM blower | 97% | 116 | 120 | $17.32 | Gas / propane | — |
| CARRIER 59TN7A120C24--22condensing · ECM blower | 97% | 116 | 120 | $17.32 | Gas / propane | — |
| WEATHERMAKER PG97VTAA66120Dcondensing · ECM blower · also sold as Payne | 97% | 116 | 120 | $17.32 | Gas / propane | — |
| BRYANT 927TA66120V24condensing · ECM blower | 97% | 116 | 120 | $17.32 | Gas / propane | — |
| CARRIER 59TP7A120V24--22condensing · ECM blower | 97% | 116 | 120 | $17.32 | Gas / propane | — |
| MIDEA MGV97U120D5Acondensing · ECM blower | 97% | 116 | 120 | $17.32 | Gas / propane | — |
| TRANE S9V2D120D5VScondensing · ECM blower · also sold as American Standard | 97% | 116 | 120 | $17.32 | Gas / propane | — |
| TRANE TUHMD120CCV5Vcondensing · ECM blower · also sold as American Standard | 97% | 116 | 120 | $17.32 | Gas / propane | — |
| TRANE S9V2D120U5VScondensing · ECM blower · also sold as American Standard | 97% | 113 | 120 | $17.32 | Gas / propane | — |
| THERMAL ZONE TZ97UP2V115D5SAcondensing · ECM blower | 97% | 109 | 112 | $17.32 | Gas / propane | — |
| FUJITSU FF97TV511524UPScondensing · ECM blower | 97% | 109 | 112 | $17.32 | Gas / propane | — |
| DURASTAR DR97UPAW1152524Scondensing · ECM blower | 97% | 109 | 112 | $17.32 | Gas / propane | — |
| RHEEM R972V1155A24UPScondensing · ECM blower · also sold as Mainline, Whirlpool, Weatherking +3 | 97% | 109 | 112 | $17.32 | Gas / propane | — |
| FUJITSU FF97MV511524DHScondensing · ECM blower | 97% | 109 | 112 | $17.32 | Gas / propane | — |
| LENNOX ML297DF110XV60Ccondensing · ECM blower | 97% | 108 | 110 | $17.32 | Gas / propane | — |
| GE NF97D110T5CRcondensing · ECM blower | 97% | 108 | 110 | $17.32 | Gas / propane | — |
| GE NF97U110T5CRcondensing · ECM blower | 97% | 108 | 110 | $17.32 | Gas / propane | — |
| GE NF97D110V5CRcondensing · ECM blower | 97% | 108 | 110 | $17.32 | Gas / propane | — |
| PHANTOM B97DR1102E5Ccondensing · ECM blower · also sold as Blueridge | 97% | 108 | 110 | $17.32 | Gas / propane | — |
| DUCANE 97G2DF110CE20condensing · ECM blower · also sold as Concord | 97% | 108 | 110 | $17.32 | Gas / propane | — |
| DUCANE 97G2UH110CE20condensing · ECM blower · also sold as Concord | 97% | 108 | 110 | $17.32 | Gas / propane | — |
| AIREASE A97DF2E110C20Scondensing · ECM blower · also sold as Armstrong AIR | 97% | 108 | 110 | $17.32 | Gas / propane | — |
| AIREASE A97DS2V110C20Scondensing · ECM blower · also sold as Armstrong AIR | 97% | 108 | 110 | $17.32 | Gas / propane | — |
| LENNOX EL297DF110XE60Ccondensing · ECM blower | 97% | 108 | 110 | $17.32 | Gas / propane | — |
| LENNOX EL297UH110XE60Ccondensing · ECM blower | 97% | 108 | 110 | $17.32 | Gas / propane | — |
| LENNOX EL297DF110XV60Ccondensing · ECM blower | 97% | 108 | 110 | $17.32 | Gas / propane | — |
| LENNOX ML297UH110XV60Ccondensing · ECM blower | 97% | 107 | 110 | $17.32 | Gas / propane | — |
| KEPLER 97G2UH110CV20condensing · ECM blower · also sold as Concord, Ducane | 97% | 107 | 110 | $17.32 | Gas / propane | — |
| BLUERIDGE B97UR1102V5Ccondensing · ECM blower | 97% | 107 | 110 | $17.32 | Gas / propane | — |
| GE NF97U110V5CRcondensing · ECM blower | 97% | 107 | 110 | $17.32 | Gas / propane | — |
| COMFORT-AIRE GUH97T110C5MPcondensing · ECM blower · also sold as Century | 97% | 107 | 110 | $17.32 | Gas / propane | — |
| GE NF97D110M5CRcondensing · ECM blower | 97% | 107 | 110 | $17.32 | Gas / propane | — |
| AIREASE A97DSMV110C20Scondensing · ECM blower · also sold as Armstrong AIR | 97% | 107 | 110 | $17.32 | Gas / propane | — |
| LENNOX EL297UH110XV60Ccondensing · ECM blower | 97% | 107 | 110 | $17.32 | Gas / propane | — |
| AIREASE A97US2V110C16Scondensing · ECM blower · also sold as Armstrong AIR | 97% | 106 | 110 | $17.32 | Gas / propane | — |
| LENNOX EL297UH110XV48Ccondensing · ECM blower | 97% | 106 | 110 | $17.32 | Gas / propane | — |
| CONTINENTAL WUV105T5BA-Ccondensing · ECM blower · also sold as Napoleon | 97% | 102 | 105 | $17.32 | Gas / propane | — |
| TRANE S9V2C100U5VScondensing · ECM blower · also sold as American Standard | 97% | 98 | 100 | $17.32 | Gas / propane | — |
| TEMPSTAR F97CMN1002122Bcondensing · ECM blower · also sold as Kenmore, Keeprite, ICP Commercial +3 | 97% | 98 | 100 | $17.32 | Gas / propane | — |
| BRYANT 987MC66100C21condensing · ECM blower | 97% | 98 | 100 | $17.32 | Gas / propane | — |
| YORK Y92V100C16SMPC1condensing · ECM blower · also sold as Kenmore, Champion Heating AND Cooling, Fraser-johnston +2 | 97% | 97 | 100 | $17.32 | Gas / propane | — |
| BOSCH BGH97M100C5Acondensing · ECM blower | 97% | 97 | 100 | $17.32 | Gas / propane | — |
| BOSCH BGH97M100D5Acondensing · ECM blower | 97% | 97 | 100 | $17.32 | Gas / propane | — |
| DAIKIN DR96TC1005DNcondensing · ECM blower | 97% | 97 | 100 | $17.32 | Gas / propane | — |
| GOODMAN GRVT961005DNcondensing · ECM blower · also sold as Amana | 97% | 97 | 100 | $17.32 | Gas / propane | — |
| DAIKIN DR97MC1005CNcondensing · ECM blower | 97% | 97 | 100 | $17.32 | Gas / propane | — |
| DAIKIN DD97MC1005CNcondensing · ECM blower | 97% | 97 | 100 | $17.32 | Gas / propane | — |
 | GOODMAN GDVM971005CNcondensing · ECM blower · also sold as Amana | 97% | 97 | 100 | $17.32 | Gas / propane | Price |
| TEMPSTAR F97CTN1002122Acondensing · ECM blower · also sold as Kenmore, Keeprite, ICP Commercial +3 | 97% | 97 | 100 | $17.32 | Gas / propane | — |
| BRYANT 987TA66100C21condensing · ECM blower | 97% | 97 | 100 | $17.32 | Gas / propane | — |
| CARRIER 59TN7A100C21--22condensing · ECM blower | 97% | 97 | 100 | $17.32 | Gas / propane | — |
| BRYANT 927TA66100V21condensing · ECM blower | 97% | 97 | 100 | $17.32 | Gas / propane | — |
| CARRIER 59TP7A100V21--22condensing · ECM blower | 97% | 97 | 100 | $17.32 | Gas / propane | — |
| GRANDAIRE WFJT100C060Acondensing · ECM blower · also sold as Ecotemp | 97% | 97 | 100 | $17.32 | Gas / propane | — |
| WEATHERMAKER PG97VTAA60100Ccondensing · ECM blower · also sold as Payne | 97% | 97 | 100 | $17.32 | Gas / propane | — |
| BRYANT 927TA60100V21condensing · ECM blower | 97% | 97 | 100 | $17.32 | Gas / propane | — |
| CARRIER 59TP7A100V21--20condensing · ECM blower | 97% | 97 | 100 | $17.32 | Gas / propane | — |
| MIDEA MGV97U100D5Acondensing · ECM blower | 97% | 97 | 100 | $17.32 | Gas / propane | — |
| MIDEA MGV97U100C5Acondensing · ECM blower | 97% | 97 | 100 | $17.32 | Gas / propane | — |
| TRANE S9V2C100D5VScondensing · ECM blower · also sold as American Standard | 97% | 97 | 100 | $17.32 | Gas / propane | — |
| DAIKIN DR96TN1005CNcondensing · ECM blower | 97% | 96 | 100 | $17.32 | Gas / propane | — |
| DAIKIN DR96TN1004CNcondensing · ECM blower | 97% | 96 | 100 | $17.32 | Gas / propane | — |
 | GOODMAN GR9T961004CNcondensing · ECM blower · also sold as Amana | 97% | 96 | 100 | $17.32 | Gas / propane | Price |
| THERMAL ZONE TZ97UP2V100C5SAcondensing · ECM blower | 97% | 95 | 98 | $17.32 | Gas / propane | — |
| FUJITSU FF97TV510021UPScondensing · ECM blower | 97% | 95 | 98 | $17.32 | Gas / propane | — |
| DURASTAR DR97UPAW1002521Scondensing · ECM blower | 97% | 95 | 98 | $17.32 | Gas / propane | — |
| RHEEM R972V1005A21UPScondensing · ECM blower · also sold as Mainline, Whirlpool, Weatherking +3 | 97% | 95 | 98 | $17.32 | Gas / propane | — |
| FUJITSU FF97MV510021DHScondensing · ECM blower | 97% | 95 | 98 | $17.32 | Gas / propane | — |
| Navien NPF700-100D5CHcondensing · ECM blower | 97% | 88 | 100 | $17.32 | Gas / propane | — |
| Navien NPF700-100H5CHcondensing · ECM blower | 97% | 88 | 100 | $17.32 | Gas / propane | — |
| Navien NPF700-100U5CHcondensing · ECM blower | 97% | 88 | 100 | $17.32 | Gas / propane | — |
| LENNOX ML297DF090XV60Ccondensing · ECM blower | 97% | 86 | 88 | $17.32 | Gas / propane | — |
| LENNOX ML297UH090XV60Ccondensing · ECM blower | 97% | 86 | 88 | $17.32 | Gas / propane | — |
| GE NF97D090T4CRcondensing · ECM blower | 97% | 86 | 88 | $17.32 | Gas / propane | — |
| GE NF97U090T4CRcondensing · ECM blower | 97% | 86 | 88 | $17.32 | Gas / propane | — |
| GE NF97D090V5CRcondensing · ECM blower | 97% | 86 | 88 | $17.32 | Gas / propane | — |
| GE NF97U090V5CRcondensing · ECM blower | 97% | 86 | 88 | $17.32 | Gas / propane | — |
| COMFORT-AIRE GUH97T090C5MPcondensing · ECM blower · also sold as Century | 97% | 86 | 88 | $17.32 | Gas / propane | — |
| PHANTOM B97DR902E4Ccondensing · ECM blower · also sold as Blueridge | 97% | 86 | 88 | $17.32 | Gas / propane | — |
| PHANTOM B97UR902E4Ccondensing · ECM blower · also sold as Blueridge | 97% | 86 | 88 | $17.32 | Gas / propane | — |
| DUCANE 97G2DF090CE16condensing · ECM blower · also sold as Concord | 97% | 86 | 88 | $17.32 | Gas / propane | — |
| DUCANE 97G2UH090CE16condensing · ECM blower · also sold as Kepler, Concord | 97% | 86 | 88 | $17.32 | Gas / propane | — |
| AIREASE A97DF2E090C16Scondensing · ECM blower · also sold as Armstrong AIR | 97% | 86 | 88 | $17.32 | Gas / propane | — |
| AIREASE A97DS2V090C20Scondensing · ECM blower · also sold as Armstrong AIR | 97% | 86 | 88 | $17.32 | Gas / propane | — |
| LENNOX EL297DF090XE48Ccondensing · ECM blower | 97% | 86 | 88 | $17.32 | Gas / propane | — |
| LENNOX EL297UH090XE48Ccondensing · ECM blower | 97% | 86 | 88 | $17.32 | Gas / propane | — |
| LENNOX EL297DF090XV60Ccondensing · ECM blower | 97% | 86 | 88 | $17.32 | Gas / propane | — |
| LENNOX EL297UH090XV60Ccondensing · ECM blower | 97% | 86 | 88 | $17.32 | Gas / propane | — |
| LENNOX EL297UH090XV48Ccondensing · ECM blower | 97% | 86 | 88 | $17.32 | Gas / propane | — |
| LENNOX ML297UH090XV36Ccondensing · ECM blower | 97% | 85 | 88 | $17.32 | Gas / propane | — |
| KEPLER 97G2UH090CV12condensing · ECM blower · also sold as Concord, Ducane | 97% | 85 | 88 | $17.32 | Gas / propane | — |
| BLUERIDGE B97UR902V3Ccondensing · ECM blower | 97% | 85 | 88 | $17.32 | Gas / propane | — |
| GE NF97U090V3CRcondensing · ECM blower | 97% | 85 | 88 | $17.32 | Gas / propane | — |
| COMFORT-AIRE GUH97T090C3MPcondensing · ECM blower · also sold as Century | 97% | 85 | 88 | $17.32 | Gas / propane | — |
| GE NF97D090M4CRcondensing · ECM blower | 97% | 85 | 88 | $17.32 | Gas / propane | — |
| AIREASE A97DSMV090C16Scondensing · ECM blower · also sold as Armstrong AIR | 97% | 85 | 88 | $17.32 | Gas / propane | — |
| AIREASE A97US2V090C12Scondensing · ECM blower · also sold as Armstrong AIR | 97% | 85 | 88 | $17.32 | Gas / propane | — |
| LENNOX EL297UH090XV36Ccondensing · ECM blower | 97% | 85 | 88 | $17.32 | Gas / propane | — |
| CONTINENTAL WUV090T5BA-Ccondensing · ECM blower · also sold as Napoleon | 97% | 85 | 88 | $17.32 | Gas / propane | — |
| THERMAL ZONE TZ97UP2V085C5SAcondensing · ECM blower | 97% | 81 | 84 | $17.32 | Gas / propane | — |
| FUJITSU FF97TV508521UPScondensing · ECM blower | 97% | 81 | 84 | $17.32 | Gas / propane | — |
| DURASTAR DR97UPAW0852521Scondensing · ECM blower | 97% | 81 | 84 | $17.32 | Gas / propane | — |
| RHEEM R972V0855A21UPScondensing · ECM blower · also sold as Mainline, Whirlpool, Weatherking +3 | 97% | 81 | 84 | $17.32 | Gas / propane | — |
| FUJITSU FF97MV508521DHScondensing · ECM blower | 97% | 81 | 84 | $17.32 | Gas / propane | — |
| ARMSTRONG AIR A97UH1E080C16condensing · ECM blower · also sold as Airease | 97% | 79 | 80 | $17.32 | Gas / propane | — |
| DUCANE 97G1UH080CE16condensing · ECM blower · also sold as Concord | 97% | 79 | 80 | $17.32 | Gas / propane | — |
| LENNOX ML197UH080XE48Ccondensing · ECM blower | 97% | 79 | 80 | $17.32 | Gas / propane | — |
| DAIKIN DR96SN0805CNcondensing · ECM blower | 97% | 78 | 80 | $17.32 | Gas / propane | — |
| DAIKIN DR96SN0804CNcondensing · ECM blower | 97% | 78 | 80 | $17.32 | Gas / propane | — |
 | GOODMAN GR9S960804CNcondensing · ECM blower · also sold as Amana | 97% | 78 | 80 | $17.32 | Gas / propane | Price |
| BRYANT 987MC60080C21condensing · ECM blower | 97% | 78 | 80 | $17.32 | Gas / propane | — |
| TEMPSTAR F97CMN0801714Bcondensing · ECM blower · also sold as Airquest, Kenmore, Keeprite +3 | 97% | 78 | 80 | $17.32 | Gas / propane | — |
| BRYANT 987MC42080C17condensing · ECM blower | 97% | 78 | 80 | $17.32 | Gas / propane | — |
| BRYANT 926SB60080V21condensing · ECM blower | 97% | 78 | 80 | $17.32 | Gas / propane | — |
| BRYANT 926SB48080V17condensing · ECM blower | 97% | 78 | 80 | $17.32 | Gas / propane | — |
| CARRIER 59SP6B080V21--20condensing · ECM blower | 97% | 78 | 80 | $17.32 | Gas / propane | — |
| CARRIER 59SP6B080V17--16condensing · ECM blower | 97% | 78 | 80 | $17.32 | Gas / propane | — |
| GRANDAIRE WFSX080B048Bcondensing · ECM blower · also sold as Ecotemp | 97% | 78 | 80 | $17.32 | Gas / propane | — |
— in the Buy column means the unit is bought and fitted through an installer.
Browsing the full field? This table shows the top 200 of 3,291 gas furnaces, ranked by AFUE. See every certified furnace: Browse all 4,695 →
How the ranking works. We rank residential gas furnaces on AFUE (the certified share of fuel that becomes heat), then heating output. AFUE is a federal test metric, not a marketing term. Specs come from the AHRI Directory (cited by reference number, not mirrored) and ENERGY STAR; operating-cost math is ours. Identical units sold under several brand names are collapsed to one row. No star ratings, no paid placement. A 96% AFUE gas furnace runs about $17.50/MMBtu vs $55.19 for electric resistance. See methodology.
When the power goes out. A gas furnace still needs electricity to run its blower and controls, so it stops heating in a power outage. Our sister site checks which portable power stations can run a furnace blower, and for how long: power stations that can run a gas furnace.
Common questions
Is a 96% AFUE furnace worth it over an 80% AFUE furnace?
On fuel cost alone, yes: at U.S. average gas prices a 96% AFUE furnace runs about $17.50/MMBtu versus $21.00/MMBtu for an 80% AFUE unit — about 17% less to run, every heating season, for the life of the furnace. The tradeoff is upfront price: 96%+ AFUE (condensing) furnaces cost more to buy and need PVC condensate venting that some 80% installs don't already have. In a cold climate with a long heating season, the running-cost gap typically pays back that premium; in a mild climate with a short season, it takes longer. Run your own numbers on the operating-cost calculator (in Tools).
What does AFUE actually measure?
AFUE (Annual Fuel Utilization Efficiency) is the certified share of fuel energy that becomes heat in your home over a year, as a percentage — a 96% AFUE furnace turns 96 cents of every fuel dollar into heat, and loses the rest up the flue and in cycling losses. It's a federal DOE test metric, not a marketing term, which is why we rank this page on it directly instead of an adjective like "high-efficiency."
What's the difference between a condensing and non-condensing furnace?
Condensing furnaces (generally 90%+ AFUE) extract enough heat from the exhaust that the flue gas cools below its condensation point, so they vent through PVC pipe instead of a metal flue, and produce a small amount of acidic condensate that needs a drain. Non-condensing furnaces (typically below 90% AFUE, like a classic 80% unit) vent hotter exhaust through a traditional metal flue. The condensing design is what makes 90%+ efficiency possible, but it's also why upgrading from an old 80% unit sometimes needs new venting, not just a furnace swap.