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differ in efficiency, running costs, carbon savings and durability. The inherent efficiency of ground


source heat pumps means they can deliver the lowest running costs of any type of heating system. As the ground temperature remains constant all year, between 8°C and 12°C, there are no unexpected spikes in electricity use as there would be with an air source heat pump on a cold day. The initial upfront cost savings of an air source heat pump could be quickly negated by higher maintenance and running costs due to lower efficiencies and shorter lifespan. Modern condensing boilers can be oer  efficient, howeer, ground source heat pumps can achieve efficiencies of . The difference in efficiency is significant because, unlike boilers, heat pumps deliver more energy than they consume  specifically from electricity.


HOW CAN AN EFFICIENT GROUND SOURCE HEAT PUMP SAVE ME MONEY? Systems that deliver much more heat energy than they consume will provide households with the lowest running costs. Government funding can also be used to offset the additional cost of installing a heat pump in domestic projects. Ground source heat pumps can also save money by utilising time- of-use tariffs and specific control systems by consuming power when electricity is


14 www.sbhonline.co.uk


The inherent efficiency of ground source heat pumps means they can deliver the lowest running costs of any type of heating system


cheapest, due to their unique ability to ‘load shift.’


HOW CAN AN EFFICIENT GSHP SAVE CARBON? fficient ground source heat pumps can deliver over 4 kW of renewable energy for every 1 kW of electrical energy they use. If you can use electricity from renewable sources, you have the ability to cut carbon emissions completely. Ground source heat pumps emit no point-of-use carbon emissions or


air pollution, and their load-shifting capabilities mean that they can move their consumption to not only the cheapest time but also the lowest carbon.


WHAT ARE THE TOP TIPS FOR AN EFFICIENT GSHP INSTALLATION? For most system installations, improving efficiency starts with insulation. The more insulation a property has, the better it will be at retaining heat. Modern homes already have insulation, which helps save on energy bills.


nderoor heating and radiators can hae an impact on the efficiency of a heat pump. nderoor heating works efficiently with a heat pump because larger surface areas are compatible with low ow temperatures. nd the lower the temperature required of the heat pump, the less work it has to do to get there.


When well designed, heat pump systems will proide an efficient, cost- effective heating solution for all your heating and hot water needs – however their design is key, so do engage with your heat pump specialists and other renewable system manufacturers (if required) at an early stage to ensure all details are discussed and addressed early on.


James Coe is sales manager at Kensa Heat Pumps


mar/apr 2023


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