Quote:
Originally Posted by motorhead
twenty-five year heating and cooling pro here. I have a condensing gas furnace in my garage.
It's a lot more efficient than a Unit heater plus I have A/C on mine which you can't do with a Unit heater from Grainger. Radiant heat is okay as long as you plan on heating the garage all the time. It takes a long time for the slap to heat up plus if you don't maintain some heat it could freeze up unless you use antifreeze. I like being able to turn my heat off in the garage when I'm not using it and having it quickly heat up when I do. You can't do this with radiant heat.
For 2,400 Sq/ft where you live without knowing all the specifics on the building and not knowing what max temp you want to maintain I would say as a rough est. you need about 100mbh of output.
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Radiant heat is the best heat I've ever experianced. If I were to ever build a new house it would have radiant floor heat all around. As for the freezing problem.....thats why you fill it with Glycol!!