Disclaimer
easy-floor is a drawing tool. It lays pipe on a plan, measures it and prints the sheets. It does not calculate heat loss, flow, pressure drop or output, and it does not size a boiler, a heat pump or a pump.
The figures on this site — pipe spacing, the length of a circuit, metres of pipe per square metre — are common trade values given for orientation. They are not a design for your building.
Before you buy pipe or pour a screed, check the layout against the data of the pipe and manifold manufacturer and the rules where you build, and have the heating designed by someone qualified to do it.
The tool is provided as it is, without any warranty. The lengths it shows are measured on the plan you drew; the plan and what is built from it are your responsibility.
Your projects are kept in your browser and are not sent anywhere. Nothing is collected about what you draw.