This can be a tankless water heater with an integrated recirculation pump or a water heater and an external pump.
Water heater recirculation pump tankless.
These beneficial systems keep a steady supply of hot water ready for those moments when you need hot water immediately like a cold winter morning.
For proper water recirculation you ll need the following units.
The rheem rtgh is one of example of a unit with a built in recirculation pump.
With the help of an integrated or external pump water travels from the tankless water heater to the hot water faucets throughout a home without the need to add additional water lines.
If you want to see an example you should check out the rheem rtgh unit which uses an integrated recirculation pump.
Other models like the rinnai rl water heaters can be programmed to start an external pump during peak water usage times.
Uses water heater electrical outlet no new electrical outlets required.
A timer setting can be activated to run every so often for example every 30 minutes to keep hot water flowing through the homes pipes and ready when needed.
Water heater and pump.
Also the pump could work internally or externally.
Pump installs by water heater not under a sink in a bathroom or kitchen.