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gas pipe reservoir before generator?
Called a customer to tell him I can't get him the btus he needs for a generator he wants to install in warehouse. if you factor in just the generator you would be ok, but obviously there are a few large spaceheaters along the way to the back of the building. It is about 250 ft of 2"-1 1/4". He responded that another contractor told him he would use a length of 3" right before the generator. Is there a code or chart to size this, or is he just guessing/hoping he will be ok. I'm not interested in running 250 ft back to the meter 25 ' in the air and I'm sure he doesn want you to pay for that anyway.