Pvc Pipe For Hot Water Heater Exhaust

Natural draft water heater the hot exhaust gases from a natural draft water heater rise through an open draft diverter and out through a metal duct.

Pvc pipe for hot water heater exhaust. Traditional gas fired forced air furnaces produce hot combustion exhaust gasses and therefore need metal vent pipes or chimneys. The difference is that a power vent water heater pulls in combustion air from the space around the appliance then uses a fan to propel the exhaust through the vent. These vent pipe kits include storm collar kits vent adapters connectors and elbows. Shop grainger for rugged gas pipe fittings.

Hot exhaust from the water heater naturally rises up through the vent and into the air outdoors creating a draw that promotes this upward airflow. Gas vent pipe from grainger manufactured by reliable companies like ameri vent and bosch comes in lengths of up to 4 l. The following information may also apply to cpvc and abs pipes if such installations are permitted by the manufacturer and local authorities. The blower pushes the exhaust and excess heat through the exhaust venting.

Smith power vent gas water heaters are equipped with an electric blower fan that is installed on top of the water heater which requires an electrical outlet to be close to the water heater. Pvc vent pipes can be used only with water heater power vent exhaust motor equipped hot water heaters also known as an induced draft gas water heaters. Power vented water heaters work the same as ordinary water heaters but the exhaust gases are blown out with a small fan instead of rising upwards through metal pipes. The water heater had scaled up due to minerals in the water supply.

The system works solely through natural convection based on the principle that hot air rises. The pipe was schedule 40 pvc pipe. My bathroom is stinky and humid even though it has an exhaust fan. That max operating temperature of 140f means that any temperature above this will cause the schedule 40 pvc pipes to break down compromising the integrity of the pipe think leaks.

In contrast modern high efficiency condensing furnaces exhaust much cooler gasses and need only plastic pipe materials such as pvc cpvc or abs for their exhaust vents some high efficiency furnaces also include a plastic pipe for intake area and all types. It just so happens that schedule 40 pvc s maximum operating temperature is 140 degrees fahrenheit around the same temperature that hot water gets to in most homes. Visit our water heaters and plumbing pipe pages for other related blog posts on this subject or go to the index for a complete listing of all our articles. This caused the flue gas temperatures to rise which created the noted problems.