Since your boiler’s primary function is to heat water and heated water corrodes metal faster than cool water, leaks caused by corrosion are very common many parts of your boiler are susceptible to corrosion both inside the boiler itself and in the valves and pipes that lead to and from it. Dine in style with our bohemia glassware range. For full details on this option. Only homeowners need to consider boiler cover. Homes with two or.