What size gas line is needed for tankless water heater?

3/4″
Hear this out loudPauseRinnai Tankless Water Heaters typically require a 3/4″ gas line to provide a sufficient gas supply to the unit’s burner. However, if there is sufficient pressure and the gas line is short enough, there are some cases where a 1/2″ gas line can be used, which is the most common size used in the United States and Canada.

How big does a gas Flex connector need to be?

The larger the inside diameter, the greater volume of gas that can flow through it. However, as the connector’s length increases, that maximum volume decreases. So a 1/2″ ID connector that’s 12″ long can provide a maximum of 180,000 BTU of natural gas, while a 24″ connector of the same diameter only provides 150,000 BTU.

Can a flexible gas line be connected to a steel pipe?

If your old appliance is connected with a steel gas pipe and you’re installing a new appliance, buy a gas appliance connecting kit. Replace the steel gas pipe with the flexible gas supply lines stainless steel tube. Pro tip: You can’t connect the flare fitting on the flexible gas line supply directly to a steel pipe thread.

Can a CSST be used as a flexible gas connector?

CSST is not designed to be used as a flexible gas appliance connector and shall not be used as a substitute. The use of CSST as a final connection for permanently installed appliances, such

What kind of tubing is a flexible gas connector made of?

FLEXIBLE GAS CONNECTOR WARNING A flexible connector is a fitting made of corrugated metal tubing used to connect some gas appliances to the customer’s gas piping system. Most of the connectors are made of brass or stainless steel and are usually less than 48” in length. Some older connectors were made of uncoated brass.

What kind of gas flex connectors do I Need?

Gas flex connectors with Shut-Off valves include 1 each flare adapter to pipe thread (either MIPS or FIPS) 3/8″ x 12″ Stainless Steel Gas Flex 3/8″ MIPS adapter x 1/2″ FIPS straight valve 1/2″ x 12″ Stainless Steel Gas Flex

When was flexible gas line approved for residential use?

You’re now the proud owner of some wonderful corrugated stainless steel tubing (CSST). This material was approved for residential use in 1988 by the National Fuel Gas Code. Code Approved But…. A flexible gas line is an ingenious method of supplying natural gas to fireplaces, furnaces, cooktops, clothes dryers and any other gas appliance.

Where to find out about flexible gas lines?

CLICK HERE to get FREE & FAST BIDS from local plumbers who install gas lines. If you have ANY DOUBTS about flexible gas lines or CSST, visit a local firehouse and talk to the team leader that’s on duty. Visit SEVERAL firehouses to get different opinions.

What kind of gas line is flexible stainless steel?

These are two short pieces of the flexible stainless-steel gas lines. You can practically tie it in a knot it is so flexible. If you have lots of pipes to run, this may be the way to go. © 2017 Tim Carter A flexible gas line is made from thin-wall stainless steel. It’s not durable like traditional black-iron pipe.