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Water to air heat exchanger used as a hydronic emitter?
Wouldn't a water to air heat exchanger used as an emitter push out some major BTUs compared to baseboard/panel radiators?
I know they are not that pretty, but they are fairly cheap. You can get a 16"x18" water to air HE @ ~$150 and a Myson 16"x24" panel rad @ ~$150. The panel rad would give you around 1300-1800 BTUs @ 140 SWT(depending on thickness). I would imagine these water to air HE offer much greater BTU output.
This may be foolish, but if not, it sounds like a nice idea for garages and similar areas.