4 votes
Accepted

Can I split a single 2500 watt baseboard heater into 2 smaller heaters?

Your plan will work. You'll need to pigtail to the first heater and continue the 240V run to the next heater. NB cable can be run in the walls and individual wires in conduit. Check codes to see if ...
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3 votes

Does the NEC recommend metal or plastic boxes for 240V?

The NEC doesn't care what material, so long as it's a listed and approved junction box, of an appropriate size for the number and gauge of wires and other items that count towards "box fill" ...
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3 votes

Does the NEC recommend metal or plastic boxes for 240V?

Depends what your needs are. From a practical standpoint, the purpose of a junction box is to contain any arcing that might occur. It doesn't matter if it's metal or plastic. Metal's big advantage is ...
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2 votes
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Existing thermostat wire colors - no white?

Someone used telephone wire (2-pair red/green & black/yellow) for the thermostat wire here. So, ignore anything you may think applies about "thermostat wire colors" and just pay ...
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2 votes

Does the NEC recommend metal or plastic boxes for 240V?

Metal can contain arcing much better than plastic. Plus if a hot wire gets loose and touches the box it is an immediate short and breaker trip, where in a plastic box it would be lurking, waiting to ...
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1 vote
Accepted

Lennox Wiring for Ecobee SmartThermostat

The issue was that the C and Y wires apparently went nowhere. I traced them as best I could, but couldn't figure it out. Fortunately, there was a deprecated humidifier control box right next to the ...
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1 vote

Is it possible that Thermostat Y wire and C wire is the same wire on my air handler (furnace)?

Connect your C to the purple wire The reason the first diagram seems confusing is because they dot the Y wire in from the thermostat to the outdoor unit, but do not specify a color for it. This is ...
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1 vote

Can I split a single 2500 watt baseboard heater into 2 smaller heaters?

The answer should be yes NEC 220.51 in this case there is not enough diversity in the load electric heat in this case so it is continuous and 1920w max on a 20 a 120v circuit. fixed space heating is ...
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