I am building an addition, and I was hoping to run a new gas line into the addition directly from my propane tank to feed a new furnace and tankless water heater that will live in the addition. I am wondering if I can split the line after the First Stage regulator on the tank and have two Second Stage regulators on the house? Sorry for the poorly drawn picture, but hopefully it illustrates the point. If this is possible to do, what considerations do I need to take into account? And how would doing this split change the amount of pressure in each line?
My current line going into the house is 5/8" copper tubing.