Skip to content
Free Delivery to UK Mainland | 5% off first order with code - WELCOME5 | Buy Now, Pay Later
Free Delivery to UK Mainland | 5% off first order with code - WELCOME5 | Buy Now, Pay Later

Wattage Requirements Calculator

The wattage required for your room will vary depending on the size of the room, the number of external walls, the level of insulation and the outside temperature relative to the desired inside temperature. Use our handy calculator to inform your choice.

How to use

how to calculate wattage

Calculator

Homes Delux
  • *(i) If you know the U value of your walls, input this figure here. If not, you can calculate your U-Value here(ii) Input the number of windows and doors in the space.
  • **Ambient temperature is the air temperature of an environment. In this case we need the lowest average outdoor temperature for your region. You can find this information here.
  • If you are unsure of anything or have any questions then please don’t hesitate to get in touch.