Gas Furnace Sediment Trap

The sediment trap shall be either a tee fitting with a capped nipple in the bottom opening of the run of the tee or other device approved as an effective sediment trap this means that all gas furnaces water heaters boilers unit heaters and gas packs are required by code to have a sediment trap in the gas line ahead of the equipment.

Gas furnace sediment trap.

It s called a sediment trap. 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. 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. Different areas have different contaminants in the gas and the traps help catch these.

The furnace permit is not available on line if you are. Most water heaters do not have a sediment trap in them. Gas piping installed underground shall be a minimum of 12 in depth 18 where external damage could. Sediment trap cpc 1212 8 a sediment trap shall be provided on the gas line downstream of the appliance shut off valve as close to the inlet of the equipment as practical and upstream of the flex connector.

Sediment trap dirt pocket or drip leg at the appliance connection point there usually is a sediment trap or dirt pocket sometimes called a drip leg that includes a nipple and a cap. Installing the new furnace in a new location. The photo below shows eighteen years of sediment accumulation at the first sediment trap at my own house which is located on the main gas line just before the pressure.