That sounds like it MIGHT work ok. I'm also thinking an envrionmental controller would be a better way to go if youre not too savy about electricity. Green Air {and others i'm sure} makes controllers to cover every possible aspect of the envrionment in any size room, and they are "plug n play" for the most part. I have one that controls co2, {i dont use co2 anymore} humidity, and temp. Its worked flawlessly for yrs and is fully adjustable which is nice for the different seasons. Mine is a lower end model and dont remember the price {about $150.00 i think} But its been worth its weight in gold for keeping the temp and humidity within 10 degrees. Theyre somewhat pricy for someone just getting set up tho.

And yeah, for sure, please dont think any question about wiring and electricity is stupid, and ask MANY people for advice if its going to become a safety issue. Most folks arent aware that if you burn down your home because of grow room or an illegal activity, the homeowners insurance will not cover the loss. Be safe and good luck