In this way the hot water plumbing pipes remain filled with hot water and you do not have to wait to use hot water.
Hot water heater recirculation pump.
There are two types of hot water recirculation pumps available for you to buy.
With this option an additional pipe that is designated for hot water is installed in your home s plumbing.
How does a hot water recirculation pump work.
When the pump detects cold water in the line it sends it back to the water heater rather than into the sewers.
Just as the name suggests a recirculation pump will work by pumping the cold water in the pipes back to the water heater.
A hot water recirculating pump works by keeping the hot water in your pipes readily available.
As a result you get the water in the pipes being hot to the desired temperature.
The next time you need to get yourself some hot water you can be sure to get instant hot water.
But it doesn t pump the water to your faucet until you turn it on.
The pump works by moving colder water in the hot line back to the water heater through the cold side.
It has 3 4 inch pipe thread connectors and you place it in the hot water line next to the water heater or near the fixture that needs the hot water.
A hot water recirculating pump is installed on your water heater returning unused hot water back to the water heater.
Sometimes hot water recirculation pumps have small motors which are unable to produce sufficient head pressure.
So that water sitting in your pipes from the tank to your faucet ends up cooling to the ambient temperature.
It is designed to provide hot water on demand.
Think about how things go when you don t have a pump.
The pump runs on 120 vac power and plugs into a standard outlet.
Two types of recirculating pumps option 1 full recirculating pump system.
Your tank heats your water to the temperature that you like.
The recirculating pump installed on the hot water discharge line of your home s water heater and the sensor valve installed on the supply lines of a faucet at the farthest distance from the water heater.
The recirculating pump keeps hot water moving through your home s hot water pipes at all times on demand or set for specific hours via a timer different from a water heater timer.
This system creates a loop from the water heater to the faucet and back again.
If the hot water is not used it simply returns back to the tank.
There are two main components to an effective hot water recirculating system.
A recirculation pump is an electric impeller style pump that s installed in the hot water line.
Consequently if the hot water faucet has not been used for a while the cold side will be less cold than usual for the first few seconds after which it will return to the normal cold water temperature fairly quickly.
Some pumps may in fact not have ample power to activate a tankless water heating system.
Of course this negatively impacts the water flow rate.