Peerless cast iron boilers are manufactured in the United States. Most all of Peerless' boilers are made of cast iron. Cast iron hot water boilers have life expectancies of 20 to 30 years or more. Cast iron is very durable and reliable. It heats up very rapidly and takes a long time to cool down, thus providing comfortable, efficient heating to your home or business.
Combi gas boilers are increasingly popular because they produce hot water on demand from the cold mains, do not require a hot water cylinder with an immersion heater and take up less space. Gas combi boilers can also be used for central heating by circulating hot water through radiators and underfloor heating systems.