New heat in the shop ..electric furnace help

Thanks guys...I got it all working like it should. ..I use to be a Forman with the power company and have done some small wiring like my house and shop..but it's been so many years ago so it was better to get some insight but once I started it seem to come back to me...I'm a truck driver now so all that stuff I don't use anymore lol..but I appreciate all the help...I use to put in subdivision and set 3phase transformers cable phone and gas ..made up a bunch of cans ..set light poles street lights ..but it was about 10 yrs ago run dips all that crazy stuff lol..

The breaker in my main box was way to small for the furnace so I put in a 50 and the wire is aluminum that runs the furnace I forgot the size but it came out the house with the furnace. ..

I'll post a pic of it later today...man you can't really hear the thing running. .got the shop up to 75 last night while I was initially. .but 68 70 will do while working on something. .going to replace the old thermostat with a little up to date 1 has the old style from the 70s but it works ...