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Cast iron vs. copper tube baseboard?

Hi. Homeownwer here. Trying to decide whether to install a Cast iron or a copper tube baseboard (for a hot water heated system). It will be for a sun room that has three sides exposed to the elements, with lots of windows. Does it make much difference? Will it save significant money in heating if we get the cast iron. We currently have both installed in the house...it seems the cast-iron stays warmer for much longer. Any thoughts?



  • Big Ed
    Big Ed Member Posts: 1,117

    Cast Iron baseboard would produce radiant and convection heat . Copper tube produces just convection. Radiant heat will give you more comfort . Cast bb puts out only a few more btu per foot . . Will you save money, no but you will get comfort...

    What you want to do for your sunroom is , do a heat loss calulation for the room and figure on zoning it with it's own thermostat...Size the radiation to your heat loss figures at your systems running temperature no matter what type you settle on....

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