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How much pipe do I need?

Underfloor Heating Pipe

How much pipe do I need?

If the 200mm (standard pipe spacing) is specified you will need 5m of pipe for each m2.

With this option each 100m circuit will cover up to 20m2.

 

If the pipe spacing is reduced to 150mm (high heat loss area - for example in a conservatory) you will need 6.67m of pipe for each m2. With this option each 100mm coil will cover up to 15m2.

To calculate how much pipe is required you need to divide the area size by 0.2 (for 200mm centres) or 0.15 (for 150mm centres).

 

*Please bear in mind you need to allow few extra meters of pipe for feed and return from/to the manifold.

 

What should be the maximum circuit length?

To avoid excessive temperature and pressure drops, Uheat recommends  a maximum circuit length of 100m (for the 15, 16 & 20mm pipe).