I’ve installed two electric baseboard heaters on the same circuit but I did no daisy-chain them. Instead I have my 12/2 coming from the powerbox (220 v - 20 amp breaker) to the thermostat and splitting in a ( Y ) with a set of wires going to baseboard A (1500 W) and a set going to baseboard B (750 W).

Is this ok… Everything works but for some reason the thermostat is kind of warm.

Thanks

I'd check the rating on the thermostat. It's possible that your thermostat is rated for a smaller load than the 2250 W you have connected. You'll need a thermostat rated for at least 9.4 amps since you have 240 volt heaters.

Actually the electronic thermostat has a capacity of 240 v / 12.5 amp / 3000 w.

I use the same thermostats all over the house and some with 2500 w heaters. No such problems.

What worries me the most it the fact that I put a junction (split) between the thermostat and the baseboards instead of daisy chaining them.

As long as you have the two cables feeding the heaters connected properly to the LOAD terminals of the stat, blacks on one and the whites on the other, you should be fine.

The heaters you have should be drawing the 9.4 amps as mentioned by BIB, and that is below the amp rating of the stat, so that is fine.

Daisy chaining the heaters would not affect the amp draw, both heaters would still draw the 9.4 amps.

A "kinda warm" is subjective. I would keep an eye on the stat, as there may be a defect in it to cause heat. As long as it does not get too hot to touch, then it should run OK.

If you have other stats of the same rating, try swapping this one with another, and see if the heat you feel is the same.

Keep your receipts handy in the even these stats can't "take the heat", so to speak.

Here is what I did (everything is grounded)

http://img98.imageshack.us/img98/2940/circuitih7.jpg

Wiring diagram looks good. I see no problems.

Only issue is, as a safety precaution, with using a single pole stat, it cannot be used as a disconnect, as you can see, it only breaks one power leg to the heater. Must use the breaker as a disconnect.

Otherwise there should be no problem.

http://www.broan.ca/PDF/Specifications/1T22d021023.pdf (this is not my thermostat)

Besides the extra security are there any advantages of using a double pole thermostat?

Actually I just found this :

What is the difference between a double pole and a single pole thermostat?

CHECK LOCAL CODES FOR BUILDING REQUIREMENTS

Single pole thermostats break only one side of the power line to your heater and cannot be turned "off". Therefore, power is continuous to the heater even if it is not running. The control knob will have a low temperature setting without an "off" position.
Double pole thermostats break both sides of the power line; therefore all power to the heater is interrupted. The control knob will have an "off" position.


Is it better to turn off all the breakers related to heating when not it use (summer)? Besides the security issues, would this save electricity?

A single pole stat opens one leg, the heater stops operating, no current is being used, so does not matter if the breakers are left on, no electric usage will occur, so no savings to be had.

National code will allow the single pole stat.