What size hook-up hose at the generator is needed?
If the hook-up hose is kept to 6′ or less, the use of a 1/2″ hook-up hose and quick disconnect coupler for up to 18hp engines is acceptable. The point is to have the correct size pipe up to the shut off valve for the generator. It is like would be necessary if using an electrical appliance on a very long extension cord. The extension cord may be quite large but the wire on the appliance may be quite a bit smaller. The same principles apply. Having a sufficient amount of gas at the shut off and QDC to feed the generator is the key. What size Pipe can your generator connect to in the drawing above? What has to be done is to reverse engineer the pipe system Write down the pipe sizes and the BTU load of each branch of the gas system. For example let’s use the pipe layout above: BTU Load of the range is 65 CFH BTU Load of the water heater is 50 CFH BTU Load of the dryer is 30 CFH BTU Load of the furnace is 125 CFH BTU Load of the grill is 40 CFH Total CFH load is 310 The length of pipe from
