We offer you the highest quality workmanship and services. Displaying products 1 - 12 of 912. There’s just never a good time for a plumbing emergency that is why. Coming at a price of $1,300, combination boilers are suited for apartments and studios they work by instantaneously heating hot water that is coming from the main supply this means that there is no delay in hot water, but the supply tends to be limited due to the lack of a storage tank. Electric boilers are an affordable option.