Description
Where it is the right choice: in new villas and detached houses alongside underfloor heating; in areas with no gas infrastructure it is effectively the only sensible candidate.
A heat pump runs on electricity but it is not an electric heater; it moves heat in from the outside air, from water or from the ground. Being able to produce several kW of heat for every 1 kW of electricity it consumes puts its running cost level with natural gas and, in most scenarios, ahead of it. On top of that it cools in summer.
Efficiency depends directly on the operating temperature: the lower the water temperature, the higher the efficiency. That is why it gives its best results with low-temperature systems such as underfloor heating and fan coils; if it is to be connected to a radiator installation, the suitability of that installation has to be assessed first. Efficiency figures are measured to EN 14511 (COP) and EN 14825 (SCOP).
Key Features
- Air source: the most practical and most widespread solution to install; ideal for homes, villas and flats
- Water source: very high efficiency on projects with a water source; for commercial facilities and large capacities
- Ground source: the most stable solution where ground and borehole conditions allow, with the lowest long-term running cost
- Both heating and cooling from one appliance, with a domestic hot water option
- High efficiency at low water temperature with underfloor heating and fan coils
How to Choose
- What is your existing system? Underfloor heating is ideal. With radiators the required water temperature is higher, so efficiency falls; we assess this at the survey.
- Insulation: in a building with high heat loss no heat source runs economically. We size capacity from the building’s real heat load.
- Outdoor unit position: an air source unit needs clear airflow and a position where noise will not affect neighbours.
- Winter performance: an air source unit loses capacity as the outside temperature falls. The balance point and any need for supplementary heat are read from the appliance’s catalogue curve.
- Electrical infrastructure: the distribution board and supply are checked for adequacy against the chosen capacity.
Get a free site survey and a quote for your project: (0501) 557 80 89 · bilgi@projenza.com
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