Radiator BTU Sizing
radiatorRough BTU heat-load by room volume + use factor.
- Room volume0m³
- BTU required0BTU/hr
- Watts equivalent0W
All tradesOpen estimator →
// Boilers, rads, pipework
Plumbers
3 calculators available.
Combi Boiler Sizing
boilerQuick rule: 10kW + 2kW/rad + 3kW for HW (combi).
- Recommended boiler13kW
Copper Pipe Quantity
copperLinear pipe + 10% fittings/cuts.
- Pipe required0m
- 3m lengths0pcs