How to wire baseboard heaters to fuse box?
#1
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How to wire baseboard heaters to fuse box?
Happy Thanksgiving everyone,
It's starting to get cold in the new house and we want to connect our baseboard heaters again. We reached out to the previous owner to see if he knew how to do it but he told us he had paid an electrician to come unplug them during the summer. He said it was $40 so I assume it's just going to be simple plug and play for us to have it working again.
Here are the pictures of the fuse box, the 2 pairs of wires on the left correspond to the 2 heaters we have in the bathrooms but we aren't sure how to properly attach them.




11 and 12 are labeled "Heat + Bathroom" but I'm not sure if we can put multiple wires together.
The model number for the baseboard heaters is F25426NWC and corresponds to
Fahrenheat 32 in. 500-Watt Baseboard Heater-F25426 at The Home Depot
Full resolution pictures can be found here: Baseboard - Imgur Just click the settings on top right and view full resolution if needed.
Thanks!
It's starting to get cold in the new house and we want to connect our baseboard heaters again. We reached out to the previous owner to see if he knew how to do it but he told us he had paid an electrician to come unplug them during the summer. He said it was $40 so I assume it's just going to be simple plug and play for us to have it working again.
Here are the pictures of the fuse box, the 2 pairs of wires on the left correspond to the 2 heaters we have in the bathrooms but we aren't sure how to properly attach them.




11 and 12 are labeled "Heat + Bathroom" but I'm not sure if we can put multiple wires together.
The model number for the baseboard heaters is F25426NWC and corresponds to
Fahrenheat 32 in. 500-Watt Baseboard Heater-F25426 at The Home Depot
Full resolution pictures can be found here: Baseboard - Imgur Just click the settings on top right and view full resolution if needed.
Thanks!
#2
You do not have a fuse box and heaters are not normally unplugged in the summer. They normally don't have plugs. This doesn't make sense. Did the previous owner say why? I am not seeing any disconnected wires in the breaker box in your picture. Have you checked the connections at the thermostats?
#3
The link for your heaters says that they draw 240V. The breaker in position #11 appears to be a single-pole 120V 15A breaker. The breaker in position #12 appears to be a twinned pair of half-height 120V 15A breakers.
There does not appear to be a compliant way of supplying your two heaters with 240V of power and protection with this arrangement. You would need to replace those two breakers with a four-terminal set of 240V "saddle" breakers.
What company made your panel and what is the model number?
There does not appear to be a compliant way of supplying your two heaters with 240V of power and protection with this arrangement. You would need to replace those two breakers with a four-terminal set of 240V "saddle" breakers.
What company made your panel and what is the model number?
#4
I suspect that the baseboards were unwired from the breaker to allow another load to be powered since there does not appear to be any open breaker spaces. I just don't see the unused wires.
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@ray2047/pcboss
The disconnected wires are on the bottom left of the picture wrapped in black electrical tape and a plug, they were a mess before but I traced them and hooked them up to a and tested it to see if they were for the heaters (and they were).
I retook a picture with the wires more visible:

@ray2047
We have window air conditioners but they're just plugged into a wall outlet.
@Nashkat1
I saw that and I was a little confused, the writing of "Baseboard heater" in positions 11 and 12 have been crossed out as well. Could it be their electrician replaced them with lower amperage ones when they had them "unplugged"?
The box itself doesn't have any markings or labels but the door panel says "Murray Type F Panel Board 100A Main Breaker" Catalog # LC120DC.
Thanks
The disconnected wires are on the bottom left of the picture wrapped in black electrical tape and a plug, they were a mess before but I traced them and hooked them up to a and tested it to see if they were for the heaters (and they were).
I retook a picture with the wires more visible:

@ray2047
We have window air conditioners but they're just plugged into a wall outlet.
@Nashkat1
I saw that and I was a little confused, the writing of "Baseboard heater" in positions 11 and 12 have been crossed out as well. Could it be their electrician replaced them with lower amperage ones when they had them "unplugged"?
The box itself doesn't have any markings or labels but the door panel says "Murray Type F Panel Board 100A Main Breaker" Catalog # LC120DC.
Thanks
#8
The disconnected wires are on the bottom left of the picture wrapped in black electrical tape and a plug,
Could it be their electrician replaced them with lower amperage ones when they had them "unplugged"?
Originally Posted by Nashkat1
a four-terminal set of 240V "saddle" breakers.
Correct that! I found a "Quadplex" double 15A 2-pole breaker in the Murray section of the Siemens catalog. It's part number MP215215CT2. (Gotta love the Siemens take on part numbering.

The box itself doesn't have any markings or labels but the door panel says "Murray Type F Panel Board 100A Main Breaker" Catalog # LC120DC.
One more question: If the wires for the heaters are disconnected, what are the wires connected to the breakers in positions 11 and 12 feeding?
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@Nashkat1
By "plug" I just mean the little cap on the end of the wire, I'm not sure what it's actually called haha.
Ah, I just looked at the layout sheet again..I don't know how I missed it the first time but they have been repurposed. Whoever did it had crossed out what was written before and rewrote: 11 is for Kitchen lights, 12A is for bathlights and 12B is for Living Room Plugs (12 is split into 2)
I can get the MP215215CT2, will it work with the heaters in addition to the currently assigned loads?
There are a lot listed on the sticker for breaker requirements, I attached a picture of it:

By "plug" I just mean the little cap on the end of the wire, I'm not sure what it's actually called haha.
Ah, I just looked at the layout sheet again..I don't know how I missed it the first time but they have been repurposed. Whoever did it had crossed out what was written before and rewrote: 11 is for Kitchen lights, 12A is for bathlights and 12B is for Living Room Plugs (12 is split into 2)
I can get the MP215215CT2, will it work with the heaters in addition to the currently assigned loads?
There are a lot listed on the sticker for breaker requirements, I attached a picture of it:


#10
By "plug" I just mean the little cap on the end of the wire, I'm not sure what it's actually called haha.

I can get the MP215215CT2, will it work with the heaters in addition to the currently assigned loads?
#11
@Nashkat1
By "plug" I just mean the little cap on the end of the wire,
I just looked at the layout sheet again..I don't know how I missed it the first time but they have been repurposed. Whoever did it had crossed out what was written before and rewrote: 11 is for Kitchen lights, 12A is for bathlights and 12B is for Living Room Plugs (12 is split into 2)
I can get the MP215215CT2, will it work with the heaters in addition to the currently assigned loads?
There are a lot listed on the sticker for breaker requirements, I attached a picture of it:
But that line of inquiry is moot anyway, unless and until you can free up two vertically adjacent full-height breaker spaces to install the MP breaker. That's why I asked you what the wires terminated to breakers 11, 12a and 12b are feeding.
You may be able to find some space by installing more half-height 120V breakers for some of your existing loads. Or another MP breaker or two for some of your existing 240V loads.
Why do you want to get these two small, inefficient heaters running anyway? What is your primary heating system? Isn't it capable of keeping your house warm?
#12
You may be able to find some space by installing more half-height 120V breakers for some of your existing loads.
I don't know how I missed it the first time but they have been repurposed. Whoever did it had crossed out what was written before and rewrote: 11 is for Kitchen lights, 12A is for bathlights and 12B is for Living Room Plugs (12 is split into 2)

#13
Nash asked:
I was wondering the same thing. 500 watts is only 1700 BTUs. Bare minimum from what the Web says is 30 to 35 BTUs per square feet in a warm climate but Massachusetts is cold so 50-60 BTUs. Therefore a 10 foot by 10 foot room needs at least 5000 BTUs where you are.
Yet from the linked description:
Seriously doubt only one or two would do much good except raise your electric bill.
Why do you want to get these two small, inefficient heaters running anyway?
Yet from the linked description:
500-Watt Baseboard Heater is ideal for warming your bedroom, bathroom, living room or den.
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Ah, okay. Thanks everybody!
We have heating throughout the house but there are no vents in the bathrooms.
We've never used the heaters before, I have no idea how warm they will be or if they are sufficient to heat. We currently just use a little space heater for the bathroom.
It seems like the option is to replace some of the current breakers with half breakers at positions 11 & 23 and then get 2 additional ones for the heaters?
We have heating throughout the house but there are no vents in the bathrooms.
We've never used the heaters before, I have no idea how warm they will be or if they are sufficient to heat. We currently just use a little space heater for the bathroom.
It seems like the option is to replace some of the current breakers with half breakers at positions 11 & 23 and then get 2 additional ones for the heaters?
#16
It seems like the option is to replace some of the current breakers with half breakers at positions 11 & 23 and then get 2 additional ones for the heaters?
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Thanks for the help everyone, we initially thought it was just going to be a plug and play thing as that's the tone we got from the original owners but it's a little more complicated.
We will look into subpanels and probably have someone come do it as we want to hook up power in our shed as well.
Thanks again!
We will look into subpanels and probably have someone come do it as we want to hook up power in our shed as well.
Thanks again!
#19
It seems like the option is to replace some of the current breakers with half breakers at positions 11 & 23 and then get 2 additional ones for the heaters?
The only way you can make this work without a new panel or subpanel is to move one of your existing tandem breakers from 12 to 23 (or 24 to 11) and remove the two SP breakers in 11 and 23. You would then need to combine those loads with a couple of existing feeds. That would give you the two vertically adjacent spaces required to install the double 15A 240V breaker I linked to earlier.
A lot of work for not a lot of gain, it would seem.
#20
We have heating throughout the house but there are no vents in the bathrooms.
I've seen people cover up the heat supply when a vanity cabinet had been installed when a remodel was done.