The property is a well-insulated, 3 bedroomed cottage, which uses a wet system of radiators, supplied by a small tank heated with LPG which required to be on every morning and evening. The clients were unhappy with the costs and performance of their existing heating system and had identified one particular room that they would like to use more, but it could not be heated sufficiently to become comfortable and so it remained unused.
Retherm carried out a technical survey of the property and due to the lack of available ground, discounted a ground source heat pump, but saw an air source unit as the right product for the situation.
The system Retherm designed incorporated a NIBE 2005 air source heat pump with a VVM internal unit. NIBE air source heat pumps are designed to work in Nordic conditions, so are ideally suited to our mild UK climate.
The robust outside unit was sited near the property, with the VVM unit being indoors where the existing boiler had stood. The VVM unit houses the mains pressure hot water cylinder and the controls for the system. Removal of the hot water cylinder, replaced by a small radiator kept the airing cupboard warm.
The running cost for electricity, now the only cost in regards to supplying energy to the house, is averaging £100 per month after completion of Retherm's Installation.
Mrs Franklin, the owner of the house, commented "We are delighted with the system and to have constant heating and hot water all of the time is a joy".