Water Heater T P Discharge Line

I would like to install a drain pan under the water heater.

Water heater t p discharge line.

Wear closed toe shoes to avoid scalding. When the water heater is in a basement or below grade it may not be possible to arrange for a gravity drain of the tprv. A few installers have raised a question about the discharge pipe for the water heater temperature and pressure t p relief valve. If there is no discharge line connected to the t p valve and it opens up those near the water heater may suffer 1st 2nd or 3rd degree burns.

The purpose of this drain line is to discharge potentially hot scalding water to a safe location so that a bystander is not scalded. The temperture sensing bulb of the valve goes in the upper portion of the tank and the gas piping runs through the valve. If the pressure in the tank exceeds 150 psi or the temperature exceeds 210 degrees fahrenheit the tpr valve opens to release the pressure. A trapped tpr dischage pipe is a common defect when a replacement water heater s tpr valve is lower than the original one and the installer connects to the exisitng discharge piping at the wall.

This relieves the high water pressure and prevents the water heater from rupturing or exploding. Scalding water and steam escape the tank through the valve and tube to relieve the pressure. Building codes require temperature pressure relief tpr valves with discharge pipes on all new water heater installations. Water heater manufacturers recommend regular checking of the t p valve.

8 termination of the tpr drain pipe cannot be more than 6 inches or less than two pipe diameters above the floor ground or waster receptor flood rim level. Water heaters should have a temperature and pressure relief valve for safety purposes. Ultimately should the water heater t p discharge pipe be run to the exterior of the crawl space. Briefly pull back on the t p valve s metal lever to cause a small amount of water about.

Make sure that the discharge tube is firmly attached. The tpr valve will activate if either water temperature measured in degrees fahrenheit or pressure measured in pounds per square inch psi exceed safe levels. The temperature pressure relief valve or tpr valve on any heated appliance that contains water such as a heating boiler hot water tank water heater water cylinder must have a drain line or discharge tube properly installed routed and made of proper materials. Temperature pressure relief valve discharge tubes drain lines their piping.

When the temperature gets too high the valve opens up and water runs out through it. I want to cut my relief discharge line and install a tee in order to connect my drain pan s line and allow both to exit using the existing pipe. Currently i only have a t p relief discharge line that runs down to just above the pedestal and out through the exterior wall. I did a little research and quickly discovered that this issue needs much more discussion than is.

Place a bucket below the discharge tube.