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What is a hot water circulation pump?

Jul 27 , 2021

hot water circulation pump

Have you ever wondered why your hot water faucet gives you cold water the first time you turn it on? Depending on the size of your home, you may need to wait a few seconds or even minutes to get hot water. This is not only inconvenient, but also wastes a lot of water.


The distance the hot water needs to move is the reason why the cold water comes out first. When the faucet is turned on, hot water is drawn into the sink through your pipe. Turning it off will stop the water, but will not return it to the water heater. It stays in the pipe and becomes cold. When hot water is needed next time, fresh hot water from the water heater must be used to push the cold water out of the pipe. The more pipes between the water heater and the faucet and the more cold water, the longer it will take.

But there are some solutions.

You can ask a plumber to install a circulating pump.A hot water circulation pump is installed on your water heater to return unused hot water to the water heater.It is designed to provide hot water on demand.


Two Types of Recirculating Pumps

Option #1

Full circulation pump system
Using this option, you can install an additional hot water pipe in your home's plumbing. The system creates a cycle from the water heater to the faucet and back again. Unused hot water is pumped back through this circuit by the pump, so when you turn on the hot water faucet, you will quickly get hot water. The water does not stay in the pipe to get cold, and you waste less water because you don't have to wait.

You may be wondering how this affects your natural gas and energy costs. If the water heater runs continuously and the water circulates endlessly, wouldn't it be more expensive? unnecessary.

Many pumps are designed with sensors and timers. Once the hot water has formed a complete cycle, the sensor will shut off the pump. The timer allows you to control when the pump is active. You can set it to turn off automatically at night, at work, or on vacation. If your pump does not have these features, plumbing professionals can help you add them.

This option is not for everyone. The cost of the pump and the additional piping required can be expensive. In addition, many home designs make it difficult to add the plumbing required for this system. If this solution is difficult for your family or budget, there is another option.


Circulating pump comfort system

Option #2

The system uses existing cold water pipes to send unused water back to the water heater. This is a cost-effective solution for homeowners who are frustrated by waiting for hot water but cannot install the first option. The Comfort System can quickly deliver hot water to areas in your home where it takes a long time to get hot water. For example, if your water is far away from the shower or kitchen, a circulating pump will solve this problem.

You also do not need to install additional pipes. This reduces the initial cost. The price of these pumps is usually between US$300 and US$500, but there are exceptions. However, this system does have its shortcomings.

The problem with this option is that since the hot and cold water share the same pipe, the water from the cold tap may not be cold or take time to get cold, especially if you have a swamp cooler. Some homeowners turn off the pump in the summer to solve this problem.

You may not realize that you already have a circulatory system. The previous homeowner may have unplugged the pump. It is worth checking to see if you already have one, especially if you are frustrated with the time it takes to deliver hot water to various areas of your home. Your plumbing professional can help you find the pump and make it work. You can also check it yourself near the top or bottom of the water heater.

The circulating pump will finish waiting for hot water. Regardless of the size of your house, you can save time, money and water for your family.


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If you are interested in our products and want to know more details, please leave a message here, we will reply you as soon as we can.

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