Hello I am new to here so I may have some strange questions please tollerate them. First I am going to build this year not real large 32x40 I just can't afford bigger it already grew 8' I had a tape measure and 5 min. no more tape measures till build. Here is a question inside the garage I am going to build a 10x12 enclosed work shop to be heated. I was told that a hot water tank and pulmbing in the floor would work not sure about that. Now if this will work would a cast iron radiator work as well since I don't want to heat it all the time or just use a electric radiator?