Portable air conditioners can also heat the air using energy efficient heat pump technology. It is so much more energy efficient to heat a room using a portable air conditioning unit than a standard electrical heater.
For example:
Electrical Fan Heater (EFH) V Portable Air Conditioner, with heat pump (PAC)
| Electrical Fan Heater | Portable Air Conditioner | |
|---|---|---|
| Heating Capacity | 4kw | 4kw |
| Energy Consumption | 4kw | 1.6kw |
| Thermostatic control | No | Yes |
| Energy rating | D | A |