Low Temperature Underfloor Heating Design

As the heat pump market grows in the United Kingdom the increase in the use of low temperature underfloor heating increases also. Special design elements need to be taken into consideration when embarking in the art of low temperature underfloor heating system design and installation.

On average the supplies used in a low temperature underfloor heating installation increase by about 35-50 percent meaning the overall cost of materials increases by 35-50 percent right? Well I can say from years worth of experience in the heat pump and underfloor heating installation and design that the answer is often no.
The problem is that there are many companies on the market that install underfloor heating systems without the correct design and specification of the required system. Giving a company who have specified the correct amount of materials required a difficulty in getting there quotation approved against the company that has reduced cost due to incorrect underfloor heating system specification.

Problem!

From the customers perspective they, I’m sure want a underfloor heating system that will enable a heat pump to operate at its most efficient, which is achieved with a flow temperature of 30-35°c. But an underfloor heating system that requires a higher flow temperature forces the heat pump to work harder and in doing so reduces the heat pumps efficiency (COP