Product code: S12444
Suitable for a range of projects, this Potterton Sirius Three 200 floor standing condensing boiler is well-suited to installation as part of a cascade system. It offers modulation ratios of up to 9:8, has a reliable stainless steel heat exchanger and promises the lowest NOx rating available. The Sirius Three is also ErP A-rated for energy efficiency and offers a gross seasonal efficiency of up to 97.5%, helping to reduce waste and fuel bills. Extremely compact, this boiler is fitted with castors allowing you to simply roll it into place.