The Potterton Promax 18kW is one of the least powerful boilers for this range, however, it is still powerful enough to heat a small to medium-sized home. Thanks to its high-efficiency rating of 89% and ErP A-rating for heating and hot water, this system boiler could potentially help you to reduce your energy bills.
System boilers are fitted with an additional hot water storage tank which is typically installed into an airing cupboard. Cold water is supplied directly from the mains and is heated in the boiler unit. The hot water is then transferred into a sealed storage tank for whenever it's needed, meaning you have hot water on demand. This makes system boilers ideal for homes with a high demand for instant hot water.
The Potterton Promax system boiler range has 5 different output ratings of between 12kW to 32kW. This system boiler has an output of 18kW, which is powerful enough to heat a small to medium-sized home with up to 15 radiators and a bathroom. If this system boiler does not meet the demands for heating and hot water in your home, it may be worth looking into the 24kW or the 32kW. Meanwhile, the 12kW and 15kW are also available for homes with lesser demand.
