How does Grundfos Recirc pump work?

The Grundfos Comfort System is a hot water recirculation system. This series eliminates cold water line runoff at the faucet using a bypass valve and pump with a timer to control water flow while delivering instant hot water.

How long should it take to get hot water with a recirculating pump?

Hooking it up takes 10-15 minutes with only a wrench required — no cutting of pipe is needed for systems with up to 250 feet of pipe. Tankless systems may require larger pumps due to minimum flow rates required by the heater.

What is a hot water recirculation loop?

Traditional Hot Water Recirculating Systems Near the water heater area, a recirculating pump pulls the water from the furthest fixture back into the water heater, creating a loop. This loop keeps hot water going throughout the house so when a fixture is used, hot water is right there.

How long do recirculation pumps last?

How Long Do Recirculating Pumps Last? Most pumps – assuming you did not get a lemon – will last 10 to 15 years. The biggest factors that impact their life expectancy are the amount of water you use every day and the quality of the manufacturing.

How often should recirculating pump run?

Without a timer on the recirc pump it will run 24/7 From an energy/cost perspective, the most efficient way to use a recirc pump is to have it run for just a few minutes ONLY before hot water is needed. Any other times it’s left running is wasting energy and costing money.

Does hot water recirculation pump prevent freezing?

Installing a hot water recirculation system helps ensure that you always have hot water in your taps and prevents pipes from freezing during the winter.

How much does it cost to replace a hot water recirculating pump?

While recirculating pumps will save you money over time, they do cost on average about $200 up front. And if you hire a plumber, the total cost of installation can be between $500 and $1000.

Do recirculating pumps damage pipes?

High velocity due to an oversized pump is the number-one cause of pinhole leaks in recirculation pipes. In addition, when the city water company adds chlorine to the water, it becomes worse. Chlorine is a disinfectant added to water to kill bacteria. However, it is kryptonite to piping—all kinds of piping.