Heat Loss Calculators

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A suite of tools to help with sizing new radiators correctly. Includes basic and advanced heat loss calculators and panel output tool to compare existing radiator outputs.

Basic Calculator

Use this heat calculator for a very rough idea of how much heat you need. It uses a basic method based on the volume of…

Advanced Calculator

A more in-depth, fully customisable heat loss calculator.

Panel Radiator Outputs

Calculate the estimated heat output of your existing panel radiators.