Boiler, radiator, and pipe sizing tools.
Estimate the boiler power (kW) you need based on floor area, ceiling height, insulation level, and climate.
Open →Calculate required pipe diameter from water flow rate and maximum velocity. Suggests nearest standard nominal size (DN).
Open →Calculate the number of radiator sections needed for a room based on volume, insulation, climate, and section heat output.
Open →Estimate pipe length, heat output, and number of circuits for wet underfloor heating. Supports bathroom, kitchen, living, bedroom room types.
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