Hot water recirculating system without dedicated return line

with built-in Cold Water StopTank and tankless systems available.

System Description:

The Dedicated Recirc System converts an existing hot water circulation line into an efficient on-demand delivery system.

The Dedicated Recirc System delivers hot water only when there is a demand:

• Reducing Energy Costs
• Virtually Eliminating Pinhole Leaks

When the Flow Monitor detects a hot water demand the Pump Manager turns on the pump and rushes water out to where it is needed.

The Pump Manager will run the pump for approximately 3 minutes to ensure that hot water is available throughout your home.

True On-Demand Operation:

A demand from any hot water faucet or appliance in the house will activate the pump.

• No buttons
• No remotes
• No motion sensors
• No timers

By turning off the recirc pump the hot water stays in the water heater which is much more efficient at keeping heat.

• Studies show that hot water is used less than 3% of the time. That means, 97% of the time you could be saving energy!
• Extends the life of your pump, pipes and water heating equipment

Reduces Leaks:

Stopping hot water from circulating in your hot water pipes virtually eliminates pinhole leaks.

• It allows your water pipes to "heal" themselves by reforming a thin patina on the surface of the pipe
• 87% of all leaks occur in hot water pipes

Works with tankless water heaters:

Turning on any hot water faucet will start the pump and the water heater. 3 minutes after the demand ends both the pump and the water heater turn off.

• Does not void manufacturer's warranties like timers or continuous operation will

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Hi Everyone! I am starting a new bathroom buildout, which will be at the far end of the house from the hot water heater. I would like to implement a hot water recirculation system so I do not need to run the hot water for a minute to purge the standing water from the hot water line.

I have seen systems that have a return line from the furthest point and feeds that into the hot water tank. I've also seen systems that put a bypass pump under the sink and purges the hot water line into the cold water line, causing a pressure rise at the cold water input of the hot water heater; accomplishing the same thing.

I cannot find any information about which of these systems is best for a new setup. Does anyone have any advice about which I should implement? The run is about 60 feet, so while long, the cost of a return line is fairly insignificant to the whole project. So I would like to use whichever one you all prefer.

Does a recirculating pump need a return line?

Can I use PEX for hot water recirculating pump?

What is a dedicated recirculation line?