How Does Hot Water Recirculation Pump Work?

Hot water recirculation pumps can be a bit tricky while choosing and if you are a beginner who didn’t have the pleasure of dealing with hot water recirculation systems before, you definitely need to know how they work to make a better choice for your house.

To understand how a good hot water recirculation system works, you need to know the inefficiencies these can deliver to the comfort of your house and overall energy consumption. Efficient hot water recirculators don’t place a demand on water heaters when flushing a toilet or opening a cold water tap. Having an efficient hot water recirculation can surely burden your pocket.

Dedicated Loop

This is one kind of the circulation systems. The hot water circulation pumps for this system is mounted on a pipe connected to the water heater tank down low. This is the cooler side of the loop or you can say the return line.

The hot water line is installed throughout the house which passes near each plumbing fixture. At each fixture, a short pipe connects the loop to the hot water valve. Because hot water is circulating in the hot water valve, whenever the valve is opened, the hot water instantly reaches the valve and is at your disposal.

This helps make the pump durable and long lasting. If the house is empty and there is no use of hot water, the pump remains off because there is no use in draining water and electricity unnecessarily.

Integrated Loop

The integrated loops are mainly used as add-ons but can be used as main components themselves. It consists of a hot water recirculation pump installed under a plumbing fixture.

These systems usually contain water pumps that are highly advanced and efficient. The pump contains a heat sensor that automatically turns on the pump whenever the water temperature falls below 85 degrees Fahrenheit and switches it off when the water temperature reaches 95 degrees F. Newer pumps are also adjustable from 77 degrees F to 104 degrees F.

These systems don’t have a separate return line and the same cold water line is used to circulate the hot water, this helps raise the temperature of cold water too.

How Are Hot Water Recirculation Systems Activated?

Hot water recirculation systems usually operate by either a timer or a thermostat. Some old systems are those that remain on 24 hours, they are not efficient.

The ones with the timers work on demand, you can set the timer to let it operate during the peak hours only such as in the morning when everyone has to go to office/school.

The thermostat ones are those with heat sensors, they turn on the pump when the water temperature falls below a certain temperature and switch off when it reaches a particular temperature.

Are Hot Water Systems Really Efficient?

Whether the hot water system is on demand or automatic, it surely reduces the percentage of water wasted yearly while you wait outside to have heated water. They reduce the time it takes to heat the water, recirculating systems are especially known for delivering hot water to faucets quickly.

They save a lot of water, installing a hot water recirculation pump in your house, you will save around 15,000-20,000 gallons of water yearly. According to the US Department Of Energy, 400 billion to 1.3 trillion gallons of water is wasted nationally by households in one year.

hot water supply

They are also power efficient. US Dept. Of Energy also states that 800-1600 kilowatt-hours per year are consumed to pump the water to households that are eventually drained down the tap while the owner waits for the water to become hot enough.

These systems are very powerful in themselves, save a lot of water from draining uselessly and also save you a lot of electricity bills. It can be a bit costly to purchase and adjust the whole setup in a new house but they sure are going to save you a lot of money in the future.

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