joshpacker
New Member
Any plumbers want to comment on the gas piping that was installed by my hvac guys to install a tankless water heater? I have a few concerns. And yes I should have inspected their work more thoroughly before they left.
To start it looks like I have at least a 1 inch pipe running to my meter. Originally, we had a regular tank water heater to the right of our furnace. We had both a 3/4 inch pipe going to each of these appliances with their own shutoff valves. Now, it looks like my hvac guys just came off of the piping for the furnace to supply the tankless water heater.
My first concern is that the original furnace shut off valve will now turn off gas to both tankless water heater and furnace, which doesn’t seem like it would be up to code.
My second concern is the pipe sizing. Looks like 1/2 inch piping concerting to 3/4 for the tankless. I tried to understand the part about pressure drops since that affects pipe sizing, but I still can’t determine if the 1/2 inch is fine. The tankless takes 200k btus. I’m not sure about the furnace.
All in all, does this look fishy to you guys? Should I talk to my hvac guys about redoing it?
To start it looks like I have at least a 1 inch pipe running to my meter. Originally, we had a regular tank water heater to the right of our furnace. We had both a 3/4 inch pipe going to each of these appliances with their own shutoff valves. Now, it looks like my hvac guys just came off of the piping for the furnace to supply the tankless water heater.
My first concern is that the original furnace shut off valve will now turn off gas to both tankless water heater and furnace, which doesn’t seem like it would be up to code.
My second concern is the pipe sizing. Looks like 1/2 inch piping concerting to 3/4 for the tankless. I tried to understand the part about pressure drops since that affects pipe sizing, but I still can’t determine if the 1/2 inch is fine. The tankless takes 200k btus. I’m not sure about the furnace.
All in all, does this look fishy to you guys? Should I talk to my hvac guys about redoing it?