![Rheem Performance Platinum 11 GPM Natural Gas High Efficiency Indoor Recirculating Tankless Water Heater ECOH200DVRHLN - The Home Depot Rheem Performance Platinum 11 GPM Natural Gas High Efficiency Indoor Recirculating Tankless Water Heater ECOH200DVRHLN - The Home Depot](https://images.thdstatic.com/productImages/90823383-8240-4756-97e3-e50ae88661ec/svn/rheem-tankless-gas-water-heaters-ecoh200dvrhln-44_600.jpg)
Rheem Performance Platinum 11 GPM Natural Gas High Efficiency Indoor Recirculating Tankless Water Heater ECOH200DVRHLN - The Home Depot
![Right – This heat pump water heater is equipped with a recirculation pump to speed hot water to distant faucets. | Building America Solution Center Right – This heat pump water heater is equipped with a recirculation pump to speed hot water to distant faucets. | Building America Solution Center](https://basc.pnnl.gov/sites/default/files/images/2021-Healthy-X-HP%20Water-Heater%20w%20Recirc%20Pump.jpg)
Right – This heat pump water heater is equipped with a recirculation pump to speed hot water to distant faucets. | Building America Solution Center
![APCOM UT1 Hot Water Recirculation Pump For Under Sink - Instant Hot Water Recirculating System For Tank Type Water Heaters - - Amazon.com APCOM UT1 Hot Water Recirculation Pump For Under Sink - Instant Hot Water Recirculating System For Tank Type Water Heaters - - Amazon.com](https://m.media-amazon.com/images/I/71ksqTcZ4pL.jpg)
APCOM UT1 Hot Water Recirculation Pump For Under Sink - Instant Hot Water Recirculating System For Tank Type Water Heaters - - Amazon.com
![Watts Premier Extremely Quiet Instant Hot Water Recirculating Pump System with Built-In Timer for Tank Water Heaters, 6.2 Inches x 6.0 Inches x 5.0 Inches Device + Equipment - Sump Pumps - Amazon.com Watts Premier Extremely Quiet Instant Hot Water Recirculating Pump System with Built-In Timer for Tank Water Heaters, 6.2 Inches x 6.0 Inches x 5.0 Inches Device + Equipment - Sump Pumps - Amazon.com](https://m.media-amazon.com/images/I/718OMYHzdcL.jpg)
Watts Premier Extremely Quiet Instant Hot Water Recirculating Pump System with Built-In Timer for Tank Water Heaters, 6.2 Inches x 6.0 Inches x 5.0 Inches Device + Equipment - Sump Pumps - Amazon.com
![plumbing - Can someone explain to me how this hot water recirculating system works? - Home Improvement Stack Exchange plumbing - Can someone explain to me how this hot water recirculating system works? - Home Improvement Stack Exchange](https://i.stack.imgur.com/d9ic2.jpg)