GET THE OUTPUT RIGHT
BTU Calculator
A calm, honest calculation for period Irish homes. Sash windows count. Ceiling height counts. Guessing costs money.
REQUIRED OUTPUT
4,658 BTU
Comfortable range: 4,192 – 5,124 BTU
We recommend choosing a radiator within 10% of the calculated figure. Over-sizing costs to run; under-sizing never catches up on a cold morning.