Free plumbing and
missed-call calculators.
Use practical calculators to estimate missed-call opportunity or plan boiler, radiator and BTU requirements before your next step.
Free Missed Call Revenue Calculator
Use the missed call revenue calculator to estimate monthly opportunity at risk from call volume, missed-call rate, lead value and conversion rate.
Free Radiator Size Calculator for UK Rooms
Use this free radiator size calculator to estimate the output needed for a UK room from its dimensions, windows, insulation and exposure.
Free Boiler Size Calculator for UK Homes
Use this free boiler size calculator to estimate the kW output a UK home may need from property, room, insulation and hot-water details.
Free Room BTU Calculator for Radiators
Use this free BTU calculator to estimate room heat demand from dimensions, windows, insulation and exposure before choosing a radiator.
These calculators provide planning estimates, not installation specifications or guaranteed revenue forecasts. Confirm heating-system decisions with a qualified professional and use your own call data wherever possible.
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