Oil-fired condensing boiler

HRM’s through-the-wall oil-fire boiler is now available as a condensing version in three sizes. They are said to be among the most compact condensing boilers available in the UK, which is achieved using a twin-chamber single-heat exchanger so that they have the same dimensions as non-condensing models. The heat exchanger is mounted on the inside of an external wall, and the combustion equipment is sealed within the wall — reducing noise and preventing kerosene smells indoors. These boilers can be serviced from outside. The condensing Wallstar is rated SEDBUK Band B. Sizes are 12/14, 15/19 and 20/24 kW, with a choice of two burners. The storage tank can be up to 100 m from the boiler.
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