A heat pump is a system that moves warmth into a building in cold weather and out of it in hot weather, using refrigerant and a compressor. We have not used these products ourselves, so this page does not rank anything from personal experience. It lays out the features that set one system apart from another, so you can read a listing with a clear checklist before you talk to an installer.
The main choices are the capacity, the stated efficiency figures, how well the system suits your climate, the type of indoor unit and the installation needs. Your home, your climate and local codes shape each of these, so use this guide to compare features and not as a promise about any single system. A licensed installer should size and fit the equipment.
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What to Look For
| Factor | Why it matters | What to check |
|---|---|---|
| Capacity | A unit too small or too large for the home works poorly | Capacity in BTU or tons, and an installer’s load estimate for your house |
| Efficiency figures | Help you compare running needs between models | SEER2, HSPF2 or similar figures stated by the maker, and how they were measured |
| Climate fit | Some systems keep working at lower outdoor temperatures than others | Cold-climate claims, lowest working temperature and backup heat options |
| System type | Ducted, ductless and packaged units suit different homes | Whether you have ducts, how many rooms need service and the indoor unit style |
| Noise and placement | Outdoor and indoor units affect comfort inside and out | Sound levels as stated by the maker and clearances needed around the outdoor unit |
| Controls and warranty | Influence daily use and long-term support | Thermostat compatibility, app control, remote and the terms of the maker’s warranty |
Setup and Care Tips
- Ask a licensed installer for a load estimate and a written plan before you choose a system.
- Check local codes, permits and any utility programs that apply to your area.
- Keep the outdoor unit clear of leaves, snow and debris, leaving the space the manual calls for.
- Clean or replace indoor filters on the maker’s timetable.
- Book routine servicing with a qualified technician.
Mistakes to Avoid
- Choosing capacity by guesswork instead of a load estimate.
- Ignoring minimum outdoor temperature limits in a cold climate.
- Comparing efficiency figures from different standards as if they were the same.
- Blocking airflow around the outdoor unit.
- Skipping filter care.
FAQ
Can a heat pump work in a cold climate?
Some models are made for colder weather, and makers state the lowest outdoor temperature they work at. Ask an installer which systems suit your region and whether backup heat is advised.
Ducted or ductless?
Ducted systems use existing ductwork to serve the whole home, while ductless units serve individual rooms or zones. The right choice depends on your layout and what ducts you already have.
The Short Version
Get a proper load estimate, choose a system type that fits your home and climate, and compare efficiency figures only on the same standard. Rely on a licensed installer for sizing and fitting.
