Quick Answer: The best window air conditioner with heat in 2026 is the GE AWGP08WWF (8,000 BTU, about $489) — a true 115V heat pump that GE’s own manual permits running in heat mode down to 5°F outdoor, colder than most buyers assume a window unit can handle. The Midea MAW08HV1CWT (roughly $306-400) is the efficiency pick, rated up to 35% better than the federal minimum, though Midea caps its own heat-pump range at a much warmer 40°F. For genuinely cold climates, the Tosot Phoenix PHO-9K is manufacturer-tested to -8°F, the only unit here built for real winter use. Before buying any “window AC with heat,” check whether the heating BTU is close to the cooling BTU (a real heat pump) or roughly half of it (an electric resistance strip that costs more to run).
Most “best window air conditioner” roundups on this site — and everywhere else — are built entirely around cooling specs. But a handful of window units also heat a room from the same box, using either a reverse-cycle heat pump or a simple electric coil, and the two technologies perform nothing alike once the temperature drops. This guide focuses only on the heat side: which units are real heat pumps, how cold each one is actually rated to work, and the spec-sheet trick that tells the two technologies apart before you buy.
Window heat pumps, by the numbers
| Metric | Figure | Source |
|---|---|---|
| GE AWGP08WWF heat-mode outdoor floor | 5°F | GE AWGP08 owner's manual |
| Midea MAW08HV1CWT heat-pump operating range | 40°F-110°F | Midea's own product page |
| Tosot Phoenix PHO-9K tested cold-weather floor | -8°F | Tosot Direct product listing |
| Max electric-resistance heat on a 115V window unit | ~4,000-4,200 BTU | Friedrich CEW08B11B spec sheet; 115V circuit physics |
The single most surprising number in this category is GE’s own 5°F heat-mode floor — colder than Midea’s published 40°F range for a similarly-priced unit, and far colder than most shoppers assume a window box can handle. Yet Tosot, not GE, is the brand actually marketing itself on cold-weather performance, with a two-stage compressor Tosot says is tested to -8°F. Read the manual for the specific model, not the marketing angle of the brand, before assuming one window heat pump is warmer-climate-only and another is winter-ready.
Our top picks at a glance
| Unit | Best for | Heat type | Cold-weather floor | Price |
|---|---|---|---|---|
| GE AWGP08WWF | Best overall | Heat pump | 5°F | ~$489 |
| Midea MAW08HV1CWT | Best efficiency | Heat pump | 40°F | ~$306-400 |
| Tosot Phoenix PHO-9K | Best for cold climates | Heat pump | -8°F | Confirm current pricing |
| Friedrich Chill Premier CEW08B11B | The trap to avoid | Electric strip | N/A — weaker heat, higher price | ~$589-639 |
1. GE AWGP08WWF — Best Overall
GE AWGP08WWF Smart Heat/Cool (8,000 BTU)
- Energy Star certified, R-32 refrigerant, current-generation GE model.
- GE's own owner's manual permits heat mode down to 5°F outdoor — cool/eco mode has a separate, warmer 32°F floor.
- Already this site's pick for "best 8,000 BTU window AC if you also want heat" — the difference here is this guide compares it against Midea and Tosot on heating specifically, not cooling.
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The GE AWGP08WWF earns the overall pick for one reason most buyers never check: the manual’s outdoor-temperature floor. GE explicitly permits heat-pump operation down to 5°F, which is colder than Midea’s own published range and closer to what a real cold-climate mini-split promises than what most window units imply. It’s still a genuine dual-season unit rather than a niche cold-weather one — Energy Star certified, R-32 refrigerant, and the same 350 sq ft cooling coverage as every other 8,000 BTU pick on this site. Our GE air conditioner guide covers the rest of GE’s current AWCS/AWGP/PPHV lineup if this one isn’t the right size.
2. Midea MAW08HV1CWT — Best Efficiency
Midea MAW08HV1CWT Smart Heat/Cool Inverter (8,000 BTU)
- 4-in-1: cools, heats, dehumidifies and ventilates from one 115V window unit, up to 350 sq ft.
- All-DC inverter compressor rated up to 35% more efficient than the US federal minimum, per Midea's own spec sheet.
- Midea's own product page caps the heat pump's operating range at 40°F-110°F — noticeably warmer than the GE's 5°F floor.
The Midea MAW08HV1CWT wins on efficiency and price flexibility — DealNews has tracked it as low as $306 on sale, while Lowe’s currently lists it at $399.99, a wide enough spread to make patience worth real money. Its all-DC inverter compressor is rated up to 35% more efficient than the federal standard, and it’s a genuine four-mode unit: cooling, heating, dehumidifying and fan-only from the same 115V plug. The one number worth knowing before you buy for a cold room: Midea’s own page states the heat pump operates from 40°F to 110°F, meaning it’s built for shoulder-season heating — a chilly October or April — rather than genuine winter use. For that, see the Tosot pick below.
3. Tosot Phoenix PHO-9K — Best for Cold Climates
Tosot Phoenix PHO-9K Ultra-Heat (9,900 BTU heat / 9,000 BTU cool)
- Two-stage enthalpy-adding compressor Tosot says delivers 164% more low-temperature heating capacity than a standard window unit.
- Energy Star certified, R-32 refrigerant, ~450 sq ft coverage, 48 dB indoor noise.
- Notably higher heating BTU (9,900) than cooling BTU (9,000) — a real heat-pump signature, not a marketing echo of the cooling spec.
The Tosot Phoenix PHO-9K is built around one number the GE and Midea can’t touch: a manufacturer-tested -8°F cold-weather floor, using a two-stage compressor Tosot says delivers 164% more low-temperature heating capacity than a standard unit. It’s also the only unit in this guide where the heating BTU (9,900) actually exceeds the cooling BTU (9,000), which is the clearest possible signature of a genuine heat pump rather than a resistance strip riding on the cooling spec. Pricing on this model varies widely and inconsistently across Tosot’s own site and major retailers — confirm the current listed price directly before buying, since it doesn’t track as predictably as the GE or Midea.
The 4,200-BTU trap: how to spot a fake heat pump
Not every “window AC with heat” is a heat pump, and the giveaway is in the numbers most listings already publish. A standard 115V household circuit physically caps electric resistance heat at roughly 4,000-4,200 BTU, regardless of how large the unit’s cooling capacity is — that’s not a marketing choice, it’s Ohm’s law. Friedrich’s own spec sheet for the Chill Premier CEW08B11B confirms exactly that pattern: 8,000 BTU of cooling, but only 4,200 BTU of electric heat, roughly half its cooling number.
Compare that to the heat pumps in this guide: the GE and Midea both heat at the same 8,000 BTU as they cool, and the Tosot actually heats at a slightly higher BTU (9,900) than it cools (9,000). That’s the tell. If a window AC’s heating spec is close to or above its cooling spec, it’s a real heat pump. If the heating number is roughly half the cooling number, it’s an electric strip — genuinely less capable heat, and, in the Friedrich’s case, not even cheaper: Home Depot currently lists the CEW08B11B at $589-639, more than either heat-pump pick above. You’d be paying a premium for the weaker heating technology, likely for Friedrich’s QuietMaster noise reputation rather than the heat feature itself.
How to choose a window AC with heat
- Check the heating BTU against the cooling BTU first. Close or higher means heat pump; roughly half means electric resistance strip.
- Match the cold-weather floor to your climate, not the brand’s general reputation — GE’s 5°F floor, Midea’s 40°F floor, and Tosot’s -8°F floor come from three different engineering approaches at similar price points.
- Don’t assume resistance heat is the budget option. The Friedrich CEW08B11B costs more than the GE heat pump despite delivering roughly half the heat output.
- Size for the room you’re actually heating, not just cooling — all three heat-pump picks here are rated for the same ~350-450 sq ft in both modes.
- Skip the drain-hose planning window units need in portable heat mode — see our portable AC with heat guide if you’re deciding between the two formats.
The bottom line
For most rooms, the GE AWGP08WWF is the smartest all-around buy — a real heat pump with a colder-than-expected 5°F manual-rated floor at a fair 8,000 BTU price point. The Midea MAW08HV1CWT is the efficiency and value pick if your climate stays above 40°F through the shoulder seasons you’d actually run heat. The Tosot Phoenix PHO-9K is the only real choice here for genuinely cold climates, tested to -8°F. And whichever brand you’re comparing, run the heating-BTU-vs-cooling-BTU check from this guide before you buy — it’s the fastest way to catch an electric-strip unit, like the Friedrich CEW08B11B, that costs more for less heat. Need the cooling-only version of this same size class? Our best 8,000 BTU window air conditioner guide covers Midea, LG, Frigidaire and Windmill’s cooling-only flagships side by side. Sizing a bigger or smaller room? Start with our BTU sizing guide. Not sure whether to go window or portable at all? Our portable vs window AC with heat comparison puts the price, drain-hose hassle, and cold-weather floors head to head.