Our home has a gravity fed hot water heating system. Our basement half finished, half unfinished and the unfinished area is where the furnace is. Last year I sealed off the door leading outside with fiberglass batting. The unfinished portion was warmer than ever and the furnace ran a lot less. I figured that keeping the water in the pipes warmer was keeping the house warmer. This year I'd like to take it further and insulate the piping leading to the radiators. I've seen the insulation they well at Home Depot but I'd like to have something much thicker. When you live in an older house every little bit helps to stretch that energy dollar
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