Thermsaver make every effort to ensure that the information given on this page is accurate, however this information may change as a result of continuing product research and development.

Listed below are some of the questions we are asked most often about Thermsaver, the warranty and also the oil boilers themselves.

Who are Thermsaver?

What is the service cover?

What guarantee do Thermsaver provide on their oil boilers?

What range of products to Thermsaver supply?

Which burners are used on the Thermsaver Oil Boilers?

Can an oil boiler be sited outside?

Why should I consider an oil combination boiler?

Do Thermsaver oil boilers comply to Sedbuk ratings?

Why should I use a system boiler?

What are the commissioning and servicing requirements?

who are thermsaver?

Thermsaver is a family owned business established in 1985. The boilers are made in a £2m purpose built plant, manufacturing in excess of 10,000 boilers this year.

what is the service cover?

Thermsaver have a nationwide service structure based on next day service cover.

what guarantee do thermsaver provide on their oil boilers?

A 5 year manufacturers guarantee on the heat exchanger and 2 year warranty on burner and controls, (with the exception of the nozzle).

what range of products to thermsaver supply?

A full range of oil boilers covering outputs from 50,000 btu to 220,000 btu. All our oil boilers can be used as conventional or balanced flue models up to 170,000 btu. The range of balanced flue kits are available for boilers from 50,000 btu - 120,000 btu, with a separate range of kits available for boilers 120,000 - 170,000 btu. Boilers of 170,000+ btu can only use a conventional flue.

which burners are used on the thermsaver oil boilers?

The boilers are manufactured with the Sterling burner (same as Worcester).

can an oil boiler be sited outside?

Yes. We can supply, 50,000-70,000, 70,000-90.000, 90,000-120,000 btu standard boilers or combi and system boilers complete in a galvanised enclosure. This includes the flue and a free of charge frost stat. The obvious benefit of this is that it takes the boiler outside of the house or kitchen.

why should i consider an oil combination boiler?

A combi boiler does not need water header tanks or hot water cylinders. Oil and water are connected to the boiler which provides instantaneous hot water at 3½ gallons per minute (much better than a gas combi). A mixing valve is supplied which blends the hot water temperature to the customers requirements. Heating is provided to the radiators from the pump within the boiler. The boiler is complete with mixing valve, filling loop, fitted time clock and pressure reducing valve.

do thermsaver oil boilers comply to sedbuk ratings?

Yes. The thermsaver range of standard efficiency oil boilers are listed under Band C in the SEDBUK ratings, while our range of condensing oil boilers are listed under Band A.

why should i use a system boiler?

A system boiler is like a combi without instantaneous hot water. It requires no header tank and can be fed directly with oil and water. It is ideally used with new systems, underfloor heating and in conjunction with our range of Telford Stainless Steel Unvented Cylinders.

what are the commissioning and servicing requirements?

Any oil boiler must be commissioned by a qualified OFTEC oil engineer. The commissioning report should be completed and sent to thermsaver. Servicing should also be undertaken by an OFTEC engineer. A list of local engineers can be found on the oftec web site or in your local yellow pages.

Please use our Enquiry Form if you have any unanswered questions or for any further information you may require.

Delivery anywhere on the UK mainland.