

EPH Services recently completed a boiler installation in Norfolk for a renovation and extension project in Mileham, including a new Worcester Bosch Greenstar 12/18kW utility oil boiler, full heating carcass throughout the property, underfloor heating, radiators, new bathrooms and kitchen plumbing, an oil tank with supply line, and an unvented hot water cylinder.

This Mileham renovation and extension required a complete heating and plumbing installation from the ground up. Our team installed the full heating carcass throughout the property, ensuring every room would benefit from efficient, controllable warmth.
The scope of works included:

We installed a Worcester Bosch Greenstar 12/18kW utility oil boiler, a highly efficient condensing boiler ideal for properties in rural Norfolk without mains gas. The boiler feeds both the underfloor heating circuits and radiators, alongside a new unvented hot water cylinder for mains-pressure hot water throughout the home.
The oil supply was installed from a new external tank, positioned on a prepared base in the garden. All pipework and controls were installed to current OFTEC standards, ensuring safe and efficient operation.

The property benefits from both underfloor heating in key areas and radiators throughout. Underfloor heating provides gentle, even warmth and works beautifully with modern open-plan living spaces, while radiators offer responsive heating in bedrooms and utility areas.
The heating manifold, visible in the utility room, controls multiple zones independently, giving the homeowners precise control over comfort and running costs. All pipework was carefully routed and tested to ensure a leak-free, efficient system.

For properties in villages like Mileham without access to mains gas, oil-fired heating remains a reliable and cost-effective solution. Modern condensing oil boilers like the Worcester Bosch Greenstar deliver efficiency levels comparable to gas, with lower running costs than LPG.
For homeowners considering a future switch to renewable heating, we also offer air source heat pump installation in Norfolk. Transitioning from oil to a heat pump can qualify for the government’s Boiler Upgrade Scheme, which offers grants of up to £9,000 to help with the cost of installation.
The Worcester Bosch Greenstar is a condensing oil-fired boiler designed for high efficiency and reliability in properties without mains gas. The 12/18kW utility model is compact and ideal for smaller to medium-sized homes.
Yes. Many properties benefit from a mixed system, with underfloor heating in open-plan living areas and radiators in bedrooms and bathrooms. Each can be controlled independently for maximum comfort and efficiency.
An unvented cylinder stores hot water at mains pressure, delivering powerful flow to showers and taps without the need for a cold-water tank in the loft. Installation must be carried out by a G3-qualified engineer.
Yes. We handle the complete installation, including the oil tank, base preparation, supply pipework and all necessary safety controls, fully compliant with OFTEC regulations.
If you’re planning a renovation, extension or new build in Norfolk and need expert boiler installation, central heating or general plumbing services, get in touch with EPH Services for a free, no-obligation quote.