(see: https://www.amazon.com/Comfort-Zone...er+cz269er+10000+watts&qid=1615526178&sr=8-13)

And I'm trying to figure out conductor size and overcurrent protection for him.

With Ohms law I get 10kw at 240v = load size of 41.67 amps.

According to NEC Article 424 Fixed Electric Space Heating Equipment, this ceiling mounted electric heater is a continuous load. And must be multiplied 125 % of the load = 52.0875 amps. I emailed the manufacturer what amps the blow motor is rated at but haven't gotten a response yet. Regardless - 6/2 Romex is rated at 55 amps and the next closest Overcurrent Protection Device (Curcuit Breaker and separate Disconnect) would then theoretically be at 60 amps.

I read the manual and it doesn't mention continuous loads (seems to ignor it completely). Can't figure out how to upload pictures of manual but it only say that the device is at 10kw, 240V 69 Hz, Phase1, 41.67 amps and BTU/Hour: 32, 122. Wire should.be copper at a rating of 75C, fuse size 50amps and min copper wire size at: 6AWG.

So which Breaker Size should I side with? The 50 amp according to the manual or should I use a 60 amp breaker as I calculated via the NEC?

Thanks for the help!