Find a system
Certified equipment grouped the way people shop for it — by the size you need, the efficiency tier you are choosing between, or the technology. Every table ranks on a stated, verifiable metric and shows where each unit is sold. No star ratings, no paid placement.
By capacity
The size question comes first, and it is the one a contractor quotes on.
- 6,000 BTU heat pumps 160 units
- 12,000 BTU heat pumps 1,687 units
- 18,000 BTU heat pumps 1,281 units
- 24,000 BTU heat pumps 1,234 units
- 30,000 BTU heat pumps 659 units
- 36,000 BTU heat pumps 973 units
- 42,000 BTU heat pumps 236 units
- 48,000 BTU heat pumps 715 units
- 54,000 BTU heat pumps 386 units
- 60,000 BTU heat pumps 97 units
- 24,000 BTU central air conditioners 50 units
Furnaces by input rating
The number on the unit and the one people search — gas and oil together, each group ranked by AFUE at a fixed size.
- 40,000 BTU furnaces 388 units
- 60,000 BTU furnaces 833 units
- 80,000 BTU furnaces 1,085 units
- 100,000 BTU furnaces 941 units
- 120,000 BTU furnaces 661 units
- 140,000 BTU furnaces 256 units
Water heaters by fuel and type
Fuel sets both the install constraint and the running cost, so it is the decision that comes first — and tanks are kept apart from tankless, because a point-of-use heater is not a substitute for a 50-gallon tank. Ranked by UEF, which compares across fuels.
- Natural gas water heaters (storage tank) 1,011 units
- Electric water heaters (storage tank) 856 units
- Propane water heaters (storage tank) 537 units
- Dual-fuel water heaters (natural gas or propane) 165 units
- Tankless gas water heaters 397 units
- Electric tankless water heaters 330 units
- Heat pump (hybrid) water heaters ranked separately
By efficiency and type
The tier and technology decisions — where the operating-cost gap actually lives.
- Mini-split (ductless) heat pumps 5,082 units
- Ducted heat pumps 2,353 units
- R-454B heat pumps 3,205 units
- R-32 heat pumps 1,561 units
A group is published only when it holds at least 50 certified units — thinner slices stay reachable in the full database rather than becoming their own page. 27,139 certified units appear across these 27 tables.