Heat Loss Calculator

We advise that you get a second opinion from your heating engineer as calculations can differ in certain situations.

Type of room?

What is below the room?

What is above the room?

Type of outside walls?

Type of windows?

Number of outside walls?

Room height (metres)?

Room width (metres)?

Room length (metres)?

Total sq metres of windows (h x w)?

Result (Watts)

Result (BTUs)