The average efficiency of the heat pump system is known as the Seasonal Performance Factor (SPF). Water-source heat pumps offer the highest possible SPF, typically providing around 4 units of heat for every unit of electricity used. This effective efficiency of 400% is possible because most of the heat is simply transferred from the external environment.
For the best efficiency and financial payback, water-source heat pumps lead the way. Water has a high heat capacity and thermal conductivity, which results in a higher Coefficient of Performance than ground- or air-source for a given source temperature. There are also year-round efficiency advantages, as water remains at a stable temperature year-round and does not diminish during the heating season.
Are you considering a water-source or ground-source heat pump project ?
Renewables First have considerable experience and full project capability, from initial feasibility study through to system design and installation.
The first step towards a water-source or ground-source heat pump project is tell us about your project. The best way of doing this is via our tailored online Enquiry Form.
Once complete, one of our engineers will evaluate the site potential before contacting you to discuss the next stage of your project.
Learn more about Heat Pump projects at our Heat Pump Learning Centre.