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What is the slowest straight went out there?
I have one of those retrofitted radiators with a sheetmetal front and fin-tubes inside in a small bedroom. It gets very hot quickly but doesn;t hold the heat as the cast iron radiators. I don't want to turn it off so I want to went it as slowly as possible and use an additional heat source if necessary to keep to room warm when this radiator stops giving off heat. It uses a straight connection and I actually have a brand new hoffman 41 laying around. Is that any good? I have Gorton 4's on half of my radiators and 5s/6s on the other so preferably I would have went that is even slower than the 4's.