The numbers
| Per day | 3.0–10.0 kWh |
|---|---|
| While running | 300–1,200 W, varies with demand |
| Starting surge (plan for) | up to about 1,500 W |
Inverter-driven mini-splits ramp gently and are the most solar-friendly way to heat and cool.
Tip: In winter, heating use can be several times summer cooling use.
Answer a few taps in a guide and every page like this shows the numbers for your own setup. Start
Running it on solar
At typical use (about 6.5 kWh a day), it takes about 10 400-watt panels to keep up through a dark winter, plus batteries for the nights.
Sized for a dark winter. Set your location · Size a whole system
How long a battery runs it
On its own, at typical use:
Questions people ask
How long will a power station run a mini-split heat pump?
A 2 kWh power station runs it for about 6 hours on its own, at typical use. Bigger batteries scale up from there.
How much solar does a mini-split heat pump need?
About 3250 W of panels covers it in a typical US winter month, on its own.
Power it for good
Want it running through outages, or off-grid for good? The guides size everything around what you run.
Typical ranges for planning, from US Department of Energy appliance estimates, nameplate ratings and owner measurements. Your model's label or a plug-in meter gives your exact number. More: How much power do you use?