
EPH Services recently completed an air source heat pump installation in Norfolk – a high gain cylinder at a property in Old Buckenham. Our engineer Rhys delivered a professional, tidy installation that integrates the high-efficiency cylinder with the existing heat pump system, ensuring reliable renewable heating for the property.

Our engineer Rhys carried out this high gain cylinder installation at a property in Old Buckenham, a village in the South Norfolk district. The installation photo shows the completed work, with a large white high gain thermal cylinder positioned alongside the copper pipework manifold, expansion vessels (the red and white tanks visible in the image), and associated controls.
High gain cylinders are designed to work efficiently with air source heat pumps in Norfolk, extracting maximum energy from the lower flow temperatures that heat pumps produce. The careful routing of copper pipe runs and the positioning of isolation valves and expansion vessels ensure the system can be serviced easily and operates safely under pressure.
Air source heat pumps operate most efficiently at lower flow temperatures than traditional boilers—typically 35–55°C rather than 60–80°C. High gain cylinders feature larger coil surface areas that allow effective heat transfer even at these lower temperatures, meaning your heat pump doesn’t have to work as hard to deliver hot water.
The result is lower running costs, reduced energy consumption, and a longer lifespan for your heat pump. When paired with the Boiler Upgrade Scheme grant of up to £7,500, switching to an air source heat pump and high gain cylinder becomes an affordable and sustainable choice for homeowners across Norfolk.
EPH Services is MCS certified to design and install air source heat pump systems throughout Norfolk, from Old Buckenham and Wymondham to King’s Lynn and beyond. Every installation is tailored to the property’s heating demands, insulation levels, and hot water requirements.
We handle the full process: heat loss surveys, grant applications, system design, installation, commissioning, and after-sales servicing. Our engineers take pride in neat, workmanlike installations with clearly labelled pipework, accessible isolation points, and full compliance with Building Regulations and MCS standards.
A high gain cylinder is a hot water storage tank designed with a larger heat exchanger coil to work efficiently with lower temperature heat sources like air source heat pumps, maximising hot water output and system efficiency.
Costs vary depending on property size, radiator upgrades, and cylinder capacity, but the Boiler Upgrade Scheme grant can reduce the upfront cost by up to £7,500. EPH Services provides free, no-obligation quotes tailored to your home.
Most domestic air source heat pumps qualify as permitted development and do not require planning permission, though certain restrictions apply (distance from boundaries, noise limits, conservation areas). We advise on all planning considerations during the survey.
Yes. We offer annual servicing, repairs, and fault diagnosis for all major heat pump brands across Norfolk. Regular servicing maintains efficiency, protects your warranty, and ensures safe, reliable operation.
If you’re considering an air source heat pump installation or need servicing for an existing system in Old Buckenham or anywhere across Norfolk, get in touch with EPH Services. Visit our air source heat pump installation page or contact us today for a free survey and quote.