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Old 01-10-2010, 10:44 PM   #1
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Electrical Service Required for an Electric furnace


Hello. I'm thinking about installing an electric furnace in my home. I currently have a 100Amp service. I know that it's common to install a 200 amp panel when a home has an electric furnace. Is this code? Can a home run ok w/ a 100 amp panel and an electric furnace? In missouri.

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Old 01-10-2010, 10:49 PM   #2
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Electrical Service Required for an Electric furnace


The size of the panel and the main overcurrent device doesn't really have a heck of a lot to do with whether or not the furnace is electric. The service is sized based on the service demands of the home as a whole. That is often a "rule of thumb" thing but service calcs are the only way to know for sure. Think of it this way...If you have a 100amp service, what are the odds that you'll ever be drawing 100amps? Not likely in most cases.

There's not a requirement that says you've got to have a 200 amp service just because you've got an electric furnace and/or water heater. If a service person says that's the case, ask them to walk you through their service calcs.

(just my opinion, but you'll hate the electric furnace if you've currently got a gas unit)

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Old 01-10-2010, 10:56 PM   #3
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Electrical Service Required for an Electric furnace


Quote:
Originally Posted by thekctermite View Post
The size of the panel and the main overcurrent device doesn't really have a heck of a lot to do with whether or not the furnace is electric. The service is sized based on the service demands of the home as a whole. That is often a "rule of thumb" thing but service calcs are the only way to know for sure. Think of it this way...If you have a 100amp service, what are the odds that you'll ever be drawing 100amps? Not likely in most cases.

There's not a requirement that says you've got to have a 200 amp service just because you've got an electric furnace and/or water heater. If a service person says that's the case, ask them to walk you through their service calcs.

(just my opinion, but you'll hate the electric furnace if you've currently got a gas unit)
No. the OP will not hate the furnace. They'll hate the bill vs. the bill for Gas heat with comparable output!
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Old 01-10-2010, 10:57 PM   #4
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Electrical Service Required for an Electric furnace


This project is for a rental home. After spending the better part of friday niht and saturday repairing a gas leak and then having the gas company fail me for the furnace flue... and then repairing it, I'm leaning towards making the home all electric for reliability. I believe the cost is a little higher, but to never have gas / exhaust issues is a major plus.
Just out of curiosity, what sort of amp draw would an electric furnace pull (in a 950 s.f. home?
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Old 01-10-2010, 11:03 PM   #5
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Electrical Service Required for an Electric furnace


You are doing your own work on a rental property?
Are you licensed ?
Everything I have heard everywhere states only a Pro can do work on rental properties ?
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Old 01-10-2010, 11:40 PM   #6
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Electrical Service Required for an Electric furnace


Scuba:
Huh? I must be overlooking your sarcasm.
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Old 01-11-2010, 08:51 AM   #7
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Electrical Service Required for an Electric furnace


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Scuba:
Huh? I must be overlooking your sarcasm.
Not sarcasm...you may be violating the law
On the one hand you say its your home...then you say it is rental property
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Old 01-11-2010, 11:31 AM   #8
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Electrical Service Required for an Electric furnace


ScuabaDave
Gosh. You caught me.
I wasn't trying to be deceptive. Did I ever say that I personally was going to install the unit myself? NO. I DID NOT. Why are you such a worry wart? IF I had the proper training and licensing, there would be nothing wrong with me doing the work anywhere. According to what you're saying, as a landlord, I can't even paint huh? Don't send me to jail. Why should it matter whether I preface my question with "on a rental property" I'm a diyer like you. Since my work is often on rental homes, does it make it not worthy or interesting to discuss? I think not.
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Old 01-11-2010, 12:02 PM   #9
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Electrical Service Required for an Electric furnace


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Hello. I'm thinking about installing an electric furnace in my home
You are right, where would I get the idea you were going to install it
Again, many areas you are not allowed to do this type of work on property you are renting out
Its a matter of wether you are legally able to do the work
Threads that discuss illegal work ARE CLOSED
I also suggest that you check your attitude

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