Combination standard efficiency oil boiler Combis – short for combination boilers are now the most popular form of boilers in the UK and are supplied in either condensing SEDBUK A or standard efficiency SEDBUK C ratings.

The combi boiler is a highly efficient water heater and central heating boiler combined in the one unit. The thermsaver combi boiler has a small (50Ltr) hot water store providing hot water on demand without the need for a separate hot water cylinder or header tanks in the loft – saving on space. Water is delivered to the taps at mains pressure at approximately 16ltr per minute giving you high power showers without the need for a separate pump. The boiler will also provide hot water for either radiators or underfloor heating. Condensing oil boilers now operate more efficiently and are installed in exactly the same way at the standard models.

• With the exception of the 90/115 all the Senator range fit under standard kitchen work surfaces.

• It incorporates a simple 24-hour time switch for easy central heating control.

• Easily sited, thanks to a multi-directional push fit round telescopic flue.

• Fitted with a resettable safety device which shuts off the boiler if a system leak occurs or a thermostat fails.

• Comes with its pump, pressure vessel and auxiliary equipment factory fitted to save on labour and material costs.

• Odour free, it’s also pre-wired and pre-piped