The rest of the installation was fair. I know the person who did this and I busted his balls big time. He always does things to fast and in a damn hurry.
As far as the heater, I really dont think the back of this heater will ommit that much heat.
This is an old American Appliance buliding, which as you know went bankrupt, the new owner is spitting up into three units, each with there own service.