050 BP 1016

BP 10 October 2016

RENEWABLES future proof heating solutions. In addition to the system benefits being passed on to the homeowner, air source heat pumps have the capacity to greatly reduce dwelling emission rates (DERs) below the regulatory maximum modelled by the BRE’s Standard Assessment Procedure (SAP) - the tool against which any new build developers can assess their whole design against the Building Regulations. This therefore enables adherence to the energy performance limits placed on new building by regulatory requirements, whilst providing a heating system with on-going system costs that are low - ensuring both parties benefit from the installation of renewable heating technology. An effective solution for new build properties both on and off-mains gas is a hybrid heat pump system. A cost effective method of ‘future proofing’ a property against future legislative changes and increasing energy prices, hybrid heat systems are becoming an increasingly popular heating solution. Combining renewable heat pump technology with the familiarity of an energy efficient gascondensing boiler, hybrid systems provide the best of both worlds for those new to heat pump 50 BUILDING PRODUCTS | OCTOBER 2016 technology. Suitable for a quick installation, the gas boiler can be commissioned and installed prior to the heat pump unit, ensuring the property has a functioning heating system as soon as possible. Furthermore, hybrid systems can be connected to radiator networks, creating minimal impact on the existing follow on trade supply chain. Combining a highly efficient gas-condensing boiler with a low temperature air-to-water heat pump, one innovative hybrid heat system works in series rather than parallel providing the high energy cost and carbon savings. This is achieved by the heat pump’s two heating modes: ‘ecological’ and ‘economical’. In ecological mode, the user can decide to minimise the ecological impact of their heating system by limiting its carbon emissions. When in economical mode, the smart control automatically searches for and chooses the most cost effective heating solution, based upon energy prices (electricity and gas), heat pump efficiency and heat load. When compared to other off mains gas heating solutions such as traditional gas or LPG fuelled systems, the more the hybrid heat pump system runs – the more money it is continuously saving from household bills. These cost savings benefits have recently been verified by independent testing of six installed hybrid systems, carried out by Leeds Sustainability Centre at Leeds Beckett University. The research project found that the systems scored an average Primary Efficiency (PE) of 116% - resulting in, on average, a 22% reduction on fuel bills. Society’s and the Government’s continuing shift towards energy conservation and search for renewable heating sources will mean innovative technologies such air-source heat pumps become ever more important to the UK’s long-term energy strategy. With the benefits of air source heat pumps and expected growth of the sector evidently clear, engaging with leading manufacturers such as Daikin ahead of the projected market increase allows for the supply chain, professional designers and installers, procurement and site teams to be advised of any changes keeping them ahead of the competition. Richard Paine is Product Manager for Domestic Heating and Renewables at Daikin UK


BP 10 October 2016
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