200 watt fan enough for 9.6 kW duct heater?
Well not knowing the "installed air flow" kinda limits what you can
figure. But in any case try to keep the air temperature rise to something reasonable, say 60F over the incoming air, try to avoid dead spots with low flow, and look at the coil to make sure it's not more than a dull red, assuming it's a nichcrome wire type coil. An air flow sail switch wired to a relay for the coil wold not be a bad idea in case the flow drops or the fan quits for some reason. A duct heater in this situation would probably ignite any combustible vapor or material drawn into the air inlet on the coils... |
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