Traditional Heat-Only Boilers have a two-tank system. One tank stores cold water, and the other tank is used to maintain the normal water level of your home’s central heating system. Benefits of having a traditional boiler in Southeastern Pennsylvania include keeping up with Southeastern Pennsylvania heating demands, and even if you have low water pressure from your mainline, there is no drawback to the capability of the traditional boiler. Traditional boilers are also compatible with older heating systems. However, owning a traditional boiler can take up a lot of space, and you will lose more energy than alternative options if the tank is not insulated properly.