OMNIE has provided a heating and ventilation solution for a self-builder to achieve his ambition of creating a new home, with a very low level of environmental impact and running costs. This results in a property with high standards of indoor air quality and comfort. The dwelling has been constructed as a single storey, deep plan structure within a walled garden in the village of Bradninch in Devon. The ultra-sustainable design features not just an AIT 7kW Air Source Heat Pump (ASHP), delivering domestic hot water and warmth via the manufacturer’s OMNIE Foilboard Floating Underfloor Heating System, but also an OMNIE Compact 185 Heat Recovery Unit (HRU), supplying pre- warmed air throughout. Now with the rural retreat completed the OMNIE equipment is fulfilling on all of the design intentions, as the owner of the property commented: “I wanted to build a home that was as low energy as possible and to take a responsible approach to the specification of its building services so that it would not only provide peace of mind for myself in terms of future running costs, but also make a positive contribution in respect of concerns over carbon reduction and our energy security.”
The accommodation comprises a spacious lounge-dining area orientated to a courtyard garden with two bedrooms plus a further office/third bedroom. There is also a main bathroom with shower and bath, a separate cloakroom close to the kitchen and a plant room containing all of the OMNIE equipment. The LWD 70 ASX ASHP is ideal for installations where there are other properties within close proximity; generating as it does a noise level of just 45 dB at a distance of one metre. This single phase machine is very efficient, with a typical Coefficient of Performance (COP) of 4.24 at design conditions A7/W35 which ensure low running costs whilst also qualifying for the domestic Renewable Heat Incentive (RHI).
Representing the latest in heat pump technology from renowned German specialist, Alpha InnoTec, the unit can achieve flow temperatures of up to 70 degrees centigrade using a low Global Warming Potential refrigerant (R290). The LWD70 ASX has a corrosion proof coating, which prolongs the life of the heat pump making it suitable for coastal areas, all Omnie heat pumps come with a 5 year parts warranty as standard.
OMNIE supported its design & supply with technical assistance at the specification stage, plus full installation drawings & heating schematics identifying information such as ideal positions for the manifolds for the UFH and the location for the HRU distribution using 75 mm diameter air ducts.