Heating & Cooling: warranties compared
25 brands. We read every warranty so you don't have to. Checked through October 2026.
23 of 25 brands cover heating & cooling in full for one year or less. The longest full coverage is 12 years, from Daikin. 19 brands keep some parts covered after full coverage ends, and 4 keep something covered for life.
Every brand, side by side
- 1Daikin60/100Full: 12 yearsNo partial coverage
- 2Carrier56/100Full: 3 yearsPartial: to 10 yearsPartial covers: Parts
- 3Portacool45/100Full: NonePartial: to lifetimePartial covers: Housing
- 4Goodman40/100Full: NonePartial: to lifetimePartial covers: Compressor; Parts; Unit replacement
- 5Ruud40/100Full: NonePartial: to lifetimePartial covers: Heat exchanger; Parts (registered); Unit replacement (compressor failure, select models); and moreCheck your model's manual
- 6York40/100Full: NonePartial: to lifetimePartial covers: Compressor (Affinity AC/heat pumps); Heat exchanger (furnaces); Parts
- 7Black+Decker31/100Full: 1 yearPartial: to 5 yearsPartial covers: CompressorCheck your model's manual
- 8Amana30/100Full: NonePartial: to 20 yearsPartial covers: Heat exchanger; Parts; Unit replacement
- 9Lennox30/100Full: NonePartial: to 20 yearsPartial covers: Heat exchanger (80% furnaces); Compressor; Other parts; and moreUnverified
- 10American Standard Heating & Air Conditioning30/100Full: NonePartial: to 10 yearsPartial covers: Parts (registered); Parts (base)Varies by model line
- 11Bosch30/100Full: NonePartial: to 10 yearsPartial covers: Parts and compressor; Labor (allowance)
- 12Heil30/100Full: NonePartial: to 10 yearsPartial covers: Parts
- 13Rheem30/100Full: NonePartial: to 10 yearsPartial covers: PartsCheck your model's manual
- 14Trane30/100Full: NonePartial: to 10 yearsPartial covers: Parts
- 15Whynter26/100Full: 1 yearPartial: to 3 yearsPartial covers: Compressor
From each maker's published warranty. “Unverified” means we couldn't confirm the terms on the maker's own site. How we rate warranties
What these warranties often leave out
- Power problems8 of 25 brands
- Water damage8 of 25 brands
- Normal wear and tear7 of 25 brands
- Accidental breaks and misuse5 of 25 brands
- Stopping working from outside causes2 of 25 brands
- Leaks1 of 25 brands
How long stores give you to return it
Longest return window first, for heating & cooling.
- CostcoMost itemsNo fixed deadline
- SupplyHouseMost items365 days
- WalmartMost items90 days
- Northern Tool + EquipmentMost items60 days from delivery
- Ace HardwareMost items30 days
- Do it BestMost items30 days
Show all 12 stores
- FergusonMost items30 days
- WayfairMost items30 days from delivery
- SutherlandsSouth Central storesMost items30 days
- Best BuyMost items15 days from delivery
- The Home DepotAir conditioners, dehumidifiers, pumps, portable evaporative coolers and portable heaters7 days
- Lowe'sAC units and evaporative coolers48 hours from delivery
From each store's published return policy, using its rule for heating & cooling where it has one. Member and holiday extensions aren't counted. Check yours before you buy.
More Home Systems warranties
- Air Quality: warranties compared30 brands
- Fireplaces & Heaters: warranties compared29 brands
- Faucets & Plumbing Fixtures: warranties compared25 brands
- Flooring: warranties compared18 brands
- Ceiling Fans: warranties compared18 brands
- Water Filtration & Softeners: warranties compared17 brands
- Home Batteries & Power: warranties compared16 brands
- Generators: warranties compared14 brands
- Solar: warranties compared14 brands
- Toilets & Bidets: warranties compared13 brands
- Smart Locks: warranties compared12 brands
- Mini-Splits: warranties compared11 brands
Questions shoppers ask
Which brand of heating & cooling has the best warranty?
On paper, Daikin scores highest, with 12 years of full coverage.
Is a long warranty on heating & cooling really that long?
Often not for the whole product. Many longer warranties cover only certain parts after the first year or two, and you usually pay for the labor. The bars above show full and partial coverage separately.
Do I need to register to get the warranty?
13 of 25 brands require registration for some of their coverage, often within a set number of days. Keep your receipt either way.
Forward the receipt and I-BUY.AI tracks the return window and warranty for you.