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code_compliant
12-30-2007, 05:28 PM
I have a customer who's remodeling his rental property. It's completely gutted (fire job) and will only be heating with baseboard heat. My question is can I legally get by with just installing the onboard T-Stats as opposed to wall T-stats? Price is the only motivating factor here.

Thanks.

Dennis Alwon
12-30-2007, 05:34 PM
I have a customer who's remodeling his rental property. It's completely gutted (fire job) and will only be heating with baseboard heat. My question is can I legally get by with just installing the onboard T-Stats as opposed to wall T-stats? Price is the only motivating factor here.

Thanks.
I have done the same in the past just make sure you use dp thermostats on the units. I don't see any legal issue with it.

Dennis Alwon
12-30-2007, 05:35 PM
It really isn't that much more to add a wall dp t-stat-- line voltage of course.

wbalsam1
12-30-2007, 05:54 PM
I don't think it's a code issue and therefore I think it would be permitted. If it's costs-savings in mind, I also think a single-pole t-stat would be permissible, since there would be double-pole overcurrent protection at the breaker location.
Having said all that, I would never do this back in the days of doing electrical work. I couldn't be talked into it by homeowners or anyone else. I never liked the ones on the unit because they were not easily controlled by the user, and I never liked single-pole t-stats simply because I thought they were cheapo and didn't offer the "off" protection of the dp's. :smile:
But I don't have a problem with anyone else's using them.

Dennis Alwon
12-30-2007, 05:58 PM
I don't think it's a code issue and therefore I think it would be permitted. If it's costs-savings in mind, I also think a single-pole t-stat would be permissible, since there would be double-pole overcurrent protection at the breaker location.
Having said all that, I would never do this back in the days of doing electrical work. I couldn't be talked into it by homeowners or anyone else. I never liked the ones on the unit because they were not easily controlled by the user, and I never liked single-pole t-stats simply because I thought they were cheapo and didn't offer the "off" protection of the dp's. :smile:
But I don't have a problem with anyone else's using them.

I don't think a sp t-stat is legal if it is a 220 unit. I may be wrong but I am not at my book and don't have time to check it out.

480sparky
12-30-2007, 06:03 PM
I don't think a sp t-stat is legal if it is a 220 unit. I may be wrong but I am not at my book and don't have time to check it out.

Would not a single-pole stat on a 240 or 208v heater be considered a controller, and not a disconnect?

wbalsam1
12-30-2007, 06:04 PM
I don't think a sp t-stat is legal if it is a 220 unit. I may be wrong but I am not at my book and don't have time to check it out.

It was legal all the years I wired as far as I know, because the inspector around in those days would have caught it in a heartbeat and wrote it up for those guys using sp t-stats. I think 424.20(B) (05 NEC) permits them with conditions. :smile:

480sparky
12-30-2007, 06:12 PM
It was legal all the years I wired as far as I know, because the inspector around in those days would have caught it in a heartbeat and wrote it up for those guys using sp t-stats. I think 424.20(B) (05 NEC) permits them with conditions. :smile:

Then it is a controller and not a disconnect.

code_compliant
12-30-2007, 06:16 PM
Thanks for the replies.

It was legal all the years I wired as far as I know, because the inspector around in those days would have caught it in a heartbeat and wrote it up for those guys using sp t-stats. I think 424.20(B) (05 NEC) permits them with conditions.

424.20(A)(2) of the '05 states a dp T-Stat is needed if it's serving as a disconnecting means if I'm reading this right.


edited for grammar

wbalsam1
12-30-2007, 06:34 PM
You won't find the word "off" on a sp- t-stat, because it's not off until the breaker shuts it off. It's only used as a controller like 480 sparky says. :smile:

Dennis Alwon
12-30-2007, 08:14 PM
You won't find the word "off" on a sp- t-stat, because it's not off until the breaker shuts it off. It's only used as a controller like 480 sparky says. :smile:

Then wouldn't you need a breaker lock in order to not have a disconnect in sight of the heater.

480sparky
12-30-2007, 08:19 PM
Then wouldn't you need a breaker lock in order to not have a disconnect in sight of the heater.

Yes, according to 424.19 (B)(1).

peter d
12-30-2007, 11:00 PM
Just out of curiosity, are your electric rates low in Minnesota?

Electric heat in a cold climate go really bad together unless you have a passive solar house and/or really cheap electric rates.

mdshunk
12-30-2007, 11:06 PM
Just out of curiosity, are your electric rates low in Minnesota?

Electric heat in a cold climate go really bad together unless you have a passive solar house and/or really cheap electric rates.
He said it was a rental, so landlords don't really care what the electric bill is. The tenants normally pay their own utilities.

Electric baseboard heat seems to be favored in rental property below a certain threshold. I certainly install and service a good bit of it for that group.

code_compliant
12-31-2007, 09:32 AM
Just out of curiosity, are your electric rates low in Minnesota?

Electric heat in a cold climate go really bad together unless you have a passive solar house and/or really cheap electric rates.


Couldn't agree more. I haven't installed baseboard in the last five years.

Marc hit the nail on the head. In this application it's a second floor duplex and only the upstairs is being gutted. No furnace, and no ducts being installed. Expensive in the winter and damn hot in the summer!