Gas Furnace Sediment Trap

Sediment trap cpc 1212 8 a sediment traps is required at each water heater boiler and furnace downstream of the appliance shut off valve and as close to inlet of the equipment as practical.

Gas furnace sediment trap.

Gas fittings and nipples what s included. The nipple and cap should be directly down in the directional flow of the gas line. He has a horizontal run of 1 gas line actually several going to rooftop package units and he just put a tee right in the middle of the horizontal run with a nipple and cap stemming down from it. It s called a sediment trap.

The most frequent improperly configured sediment trap is where the gas supply connects to a tee fitting installed with the tee tap facing down the gas supply is connected to one end of the horizontal tee the appliance is connected to the other end of the horizontal tee and a short nipple is installed into the down facing tee tap the nipple. Have you ever looked at your gas furnace or gas water heater and wondered what the short piece of gas pipe going to nothing was for. Black tee 1 2 in. It is actually a very useful component of the gas line known as a sediment trap.

Sediment traps sometimes mistakenly referred to as drip legs are designed to catch sediment in natural gas before it enters into the water heater or furnace gas valve. Missing sediment trap on gas water heater. Different areas have different contaminants in the gas and the traps help catch these. Drip legs technically call just a drip are installed to collect condensation in a gas piping system so they are installed in a low point to prevent condensation from running back into the gas meter.

I have recently run across a contractor who wants to argue over the proper way to build a sediment trap. Most water heaters do not have a sediment trap in them. Improperly installed sediment trap on new gas tankless water heater. Drip leg drip leg and sediment trap are often used interchangeably but they are really two different things.

Gas piping installed underground shall be a minimum of 12 in depth 18 where external damage could. Sediment traps are intentionally installed to help prevent sediment in the gas piping from getting into the gas valve or burner area of an appliance and fouling things up. Black nipple 1 2 in. Gas leak detector spray csa yellow gas thread seal tape 1 2 in.

In the above image the trap is perpendicular to the flow of gas. Handy kit contains everything you need to build a sediment trap onto your home s water heater.