I see that "daisy chaining" baseboard heaters is OK to do. My question is how many 8 ft heaters can I put on one circuit and what size circuit should I use? (20-30-40-50) Does each circuit require different size wiring? I plan to use 10/2 wiring. The one room is 390 square feet and by my calculations two 8 footers would heat properly. The other room is 435 square feet and I wanted to do two 8 footers and one 4 footer. Also, this is in the basement and we are not planning on using a wall thermostat, instead turn it on when we need it. To "take the chill off" so to speak.

Thank you,
Mollymarie

It all depends upon how much current the heaters draw in amps. The number of amps will also determine the size of the breakers.