Alan Waterman
Member
Looking a replacing my 23 year old water heater with a tankless. I have a 1" I.D gas line running about 130 feet from the second stage regulator to the other side of the house where it tees off for the 2 furnaces about 5 feet away and then the other T is 3/4" about 20 more feet before it tees off again...1/2" to the dryer about 10 feet and 3/4" to the hot water heater about 10 feet. There are no other gas appliances in the house. Cooking is all electric.
A local plumber thinks it will be sufficient for a 199 BTU tankless but agrees it will be marginal.
I asked about changing the second stage regulator to one that outputs 2 psi and installing Maxitrol 325 series regulators further downstream. The response was that 2 psi is not legal inside residential buildings in California.
I find no mention of this is chaper 12 of the California plumbing code. The code says that for 2 psi systems that inline regulators that are CSA certified be installed to reduce the pressure back down to 14" before appliances.
Is this not relevant or am I misinterpreting the code?
The first plumber said that 2psi gas is not allowed inside homes anywhere in the US. The second plumber said it's just California.
A local plumber thinks it will be sufficient for a 199 BTU tankless but agrees it will be marginal.
I asked about changing the second stage regulator to one that outputs 2 psi and installing Maxitrol 325 series regulators further downstream. The response was that 2 psi is not legal inside residential buildings in California.
I find no mention of this is chaper 12 of the California plumbing code. The code says that for 2 psi systems that inline regulators that are CSA certified be installed to reduce the pressure back down to 14" before appliances.
Is this not relevant or am I misinterpreting the code?
The first plumber said that 2psi gas is not allowed inside homes anywhere in the US. The second plumber said it's just California.