Question about QMark BRH482 Heavy Duty Portable Electric Garage Heater 16,380 BTU
1I installing a QMARK garage heater Model#MUH0321. Spec are 3,000 watt @ 240 volts/1ph. What wire size and amp size breaker should i use?
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Posted on Jan 02, 2017
4awg is about the size of battery jumper cable. or 240v multi-strend cable. and 48A is big. double 40A brakers.
the heater is 208v 3-phase 34,000BTU
it is call out to use the 240 comercial wiring.
Posted on Dec 02, 2008
12 gauge wire sounds under sized for the application. And 20 amp 240 v breakers might be sufficient if you where wiring the heaters separately. But be sure that your wiring is not romex - because romex is an insulator and is not permitted in conduit. I would suggest that you up size your wire to 10 guage and your breaker to 30 amp as well. Then double check your heater wiring connections to insure that they're wired the same throughout.
Posted on May 03, 2009
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