Heat Pump Sizing
A heat pump needs to be the right size for the area it’s going to heat.
Too small means the unit will have to work so hard that it won’t deliver its best efficiency and will be slow at heating a cold room. It’s also more likely to freeze up in very cold weather. Too large means the unit will have to cycle on and off to avoid overheating the area. It’ll also cost more to buy than a model that’s the right size.
Here is a handy calculator to roughly estimate what size heat pump you would need.