This particular boiler also has a high-efficiency rating of 89.4% and an ErP A-rating for central heating, which means you could potentially reduce your energy bills with this boiler.
The Promax SL Heat 15kW is ideal for smaller homes with low demand for heating and hot water. This boiler can heat a home with up to 10 radiators and a bathroom. For homes with higher demand, the Promax SL Heat 18kW and Promax HE Store 24kW may be better suited, meanwhile for homes with lower demand, the 12kW is also available.
The Potterton Promax SL 15kW is an open vent boiler that can be used in flats and smaller homes, as long as you have a hot water storage tank or an economy 7. Usually, regular boilers are fitted with an additional cold water feed that is installed in the attic of your home, as well as a hot water storage tank, typically located in an airing cupboard, therefore, if your home has limited space, a regular boiler may not be the best option for you.
