We wanted a house that was cheap to run, energy costs set to rise year on year. One of the ways we hope to achieve this is to install high levels of insulation, air tight membrane, and a MVHR unit. It takes a bit getting your head around it - it differs to the conventional way of heating a house - but hopefully it will work! The unit takes heat from the extract stale air and puts it back into the fresh air Intake, basically recycling the heat. The unit also incorporates an air heat pump which it uses to 'boost' the temperature of the supply air in cold winter months. As a back-up we are installing electric Under Floor Heating throughout the required areas downstairs, but hopefully this will only be needed in the really cold welsh winter days...
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