Originally Posted by
ExtremeSi
Just to add to this, I also bought a 1500W heater first and found it to be pretty useless. Decided to wire 240V into my garage, bought a 5000W portable heater and it's been great. I just use it when I am working out in the garage and it heats it up nicely. Wiring the 240V wasn't too hard, but if you are more comfortable getting a pro to do it then $600 isn't too bad. I did get a permit when I did mine just to cover my ass if something happens and the permit+inspection costs $150 on it's own.