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Electric Baseboards

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joseph02347

Member
Location
Lakeville Massachussetts
Occupation
Electrical apprentice
I am in Massachusetts and i am installing 4 baseboard electric heaters in a finished basement 2- 6ft 240v 1500w and 2-240 1000w do each electric baseboard need a designated circuit i know normally they do not but in mass there is a bunch of regulations on heating now was looking in 424 but couldn't find anything Defina native
 

joseph02347

Member
Location
Lakeville Massachussetts
Occupation
Electrical apprentice
20 amp circuit?

240*20=4800*80=3840 watts maximum.
i thought the 2 pole 30 would work aslong as the terminals are rated for it and I run a 10/3 i didnt want too run a dedicated circuit for each unit and take up all that space in the panel because i was going to do a generator inlet and install an interlock for them
 

Little Bill

Moderator
Staff member
Location
Tennessee NEC:2017
Occupation
Semi-Retired Electrician
i thought the 2 pole 30 would work aslong as the terminals are rated for it and I run a 10/3 i didnt want too run a dedicated circuit for each unit and take up all that space in the panel because i was going to do a generator inlet and install an interlock for them
If these are 240V, why would you run 10-3? That saves you nothing, actually, it costs you more! You can't have a MWBC with only 240V loads.
 

kwired

Electron manager
Location
NE Nebraska
Occupation
EC
Personally I hate 30 amp circuits for electric heat. I would run 2 20's and either get one of those electric heat relay boxes or separately control one or more of them.
Maybe ceiling hung radiant heaters with smaller tap conductors tailed to each unit isn't so bad on 30 to 50 amp circuits where permitted, but yes it seems to be a pain for typical baseboard or even cove heaters.
 

infinity

Moderator
Staff member
Location
New Jersey
Occupation
Journeyman Electrician
There are several options:
1) 30 amp circuit-2 Thermostats
2) 30 amps circuit relay control single stat
3) 2-20 amp circuits-2 thermostats.

I would go with option 2 since these are all in the same room.
 

roger

Moderator
Staff member
Location
Fl
Occupation
Retired Electrician
Joseph, seeing that you are an apprentice are doing all this work under a supervisor?
 
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