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How does underfloor heating work?

POLYPIPE WIRSBO UNIPIPE

Underfloor Heating Products and Information

 
The Questions
What is UFH? How does it work? Benefits of UFH

Where it can be used

Frequent Questions
 
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UNIPIPE WIRSBO Considerations The Manifold Small Area Solutions

 

How does an Underfloor Heating System Work ?

These days, most underfloor heating systems are either warm water (wet) systems or electric (dry) systems.

For wet systems, pipes are buried in screed, or run underneath the floor surface. Wet underfloor heating systems operate by heat transferring from the water passing through the pipe directly into the floor. Because the whole area of the floor is warm, it heats the room more evenly.

Unlike radiators, underfloor heating systems do not need to run at high temperatures. Heat imparted to the floor is released across a large area rather than the relatively small and focussed area of a radiator. As such,  UFH systems do not need to operate at such high temperatures.

Typically, the temperature of the water in an underfloor heating system pipe is 45 65oC (compare this to approximately 80oC flow and surface temperature of a radiator system) warming the floor to a temperature of 25 28oC, which is comfortable to walk on.

 For Dry Systems, the principle is the same. The difference is that instead of imparting heat from water passing through a pipe, you use an electric heating element as the heat source.

 

 


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