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Posted by HeatPro on September 27, 2004 at 08:03:43:
In Reply to: Crack in radiator posted by Shadowz on September 27, 2004 at 07:39:14:
As that radiator is the highest point of the system, you can leave the radiator as is and use it as an expansion tank. as long as the system fill hand valve is closed so that no more water enters the system to overfill it, you can leave the radiator as is. The cracks will act as an air relief and the radiator will be an expansion tank and air scoop as were used in the old gravity hot water systems.
You might also be able to cap the radiator pipes off if there are no other radiators fed by those pipes. You could also pipe them together so they are still part of the circuit, but do not cause a blockage. If you install baseboard, install cast iron baseboard as copper fin tube acts completely different. It heats faster than cast-iron and cools faster, so it doesn't provide an even heat when in the same circuits as cast iron radiators.
If you don't care about even heat in the attic, then that is another consideration where you could cut in baseboard. Suppliers sell commercial baseboard in 1 and 1-1/4 -inch steel pipe threaded connections if you don't want to solder.
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