
In a traditional hot water recirculating system, there is a dedicated return line for the hot water pipes, which runs from the furthest bathroom or fixture back to the water heater. Near the water heater area, a recirculating pump pulls the water from the furthest fixture back into the water heater, creating a loop.
How does a hot water recirculating system work?
Remember, the water needs to travel through long plumbing pipes before you use it. Also, the unused water remains in the lines. Therefore, the faucet will first receive cold water then hot water when you turn on the heater. Generally, the hot water recirculating system is a pump that creates a loop that retains hot water in the pipes.
What is a recirculation pump on a water heater?
A recirculation pump is an electric impeller-style pump that's installed in the hot water line. It has 3/4-inch pipe thread connectors, and you place it in the hot water line next to the water heater or near the fixture that needs the hot water. The pump runs on 120 VAC power and plugs into a standard outlet.
What are the components of a recirculation system?
Other important components of a recirculation system include: A check valve, which ensures the water flows in only one direction. This is a requirement for any water circulation system. A temperature sensor, or aquastat, to monitor the water temperature and shut off the pump when it's high enough.
How many liters of water does a hot water recirculating pump waste?
While it may not appear to be a lot per instance basis, it can indeed be wastage of thousands of liters of water when you look at it from an annual point of view. A Hot Water recirculating pump is what would help you solve this issue.

What does recirculating water mean?
Water recirculation is the processes of using the same water more than once in a system. The water must leave the system and re-enter it or be used in a different system. Water recirculation reduces the need to take in new water.
How does water recirculate in Australia?
Hot water recirculation provides a continuous flow of hot water in the hot water supply line of your home – when you need it. Without a Hot Water Recirculation System, unused hot water in the line cools and must be evacuated before hot water from your hot water heater can reach the desired tap.
How does a hot water recirculating sensor valve work?
A patented sensor valve opens when the water on the hot water side cools and pushes the cool water back to the water heater. As the temperature in the hot water line hits 98º, the valve closes.
How does a hot return work?
Secondary hot water returns are generally used in domestic hot water applications where the point of usage (i.e. taps) are a distance away from the hot water cylinder. They are used to remove the need to draw off a large quantity of cool water, ( left in the pipe run), before hot water actually reaches the tap.
How much does a hot water recirculating system cost?
between $200 and $400The average cost for a hot water recirculating system ranges between $200 and $400.
Do circulator pumps run all the time?
The most common circulator pumps run all day, every day, whether you're actively using hot water or not. This causes a lot of heat to dissipate in the pipes 24/7 and requires the water heater to work harder to keep the water hot.
How long do recirculating 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 do you recirculate hot water?
0:054:20How to Install a Hot Water Recirculating System - YouTubeYouTubeStart of suggested clipEnd of suggested clipNow open a hot water faucet preferably a tub faucet elsewhere in your home in order to drain out allMoreNow open a hot water faucet preferably a tub faucet elsewhere in your home in order to drain out all of the hot water. After it stops flowing leave the faucet in the on position until.
How does Australia get fresh water?
Almost half of national groundwater use in distributed water systems is in Western Australia, where groundwater makes up nearly 30% of total supply. Including self-supplied water, groundwater now makes up more than 75% of the water consumed in Western Australia.
How is water supplied in Australia?
In Australia we have some of the cleanest and purest drinking water in the world. Most of the tap water we use every day comes from rain, collected and stored in large reservoirs.
Where does Australia get its freshwater?
If you live in an Australian city, there's a good chance that your water comes from surface water such as streams, rivers and reservoirs filled by rainfall and runoff. If you live in Perth, much of your water (about 40%) comes from groundwater.
Is it okay to drink tap water in Australia?
Can you drink tap water in Australia? The short answer to this question is yes. Tap water in Australia is considered safe to drink by health professionals.
Use the cold water line as a recirculating loop to save the cost of adding more plumbing
In cold climates—and big houses—it can a minute or two for hot water to reach the sink or shower after turning it on.
Here's how it works
An internal or an external pump pushes water from the water heater through the plumbing lines at scheduled intervals, or on demand by pushing a button or using motion sensors at the faucet.
How does a water recirculation pump work?
A hot water recirculation pump works by continually circulating hot water throughout the pipes within a home or other structure. The pump can be installed in several locations and provides a constant cycle or flow of existing water. The water is pulled and simultaneously returned to the hot water heater maintaining a constant supply of hot water to faucets throughout the home.
What is a recirculating pump?
These types of recirculation pumps are called Dedicated Loop and Integrated Loop. Each kind of hot water circulation pump utilizes a different method to maintain a consistent flow of hot water throughout the structure.
How much water does a hot water pump save?
They save a lot of water; by 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.
Where is the water pump on a water heater?
This is one kind of circulation system. The hot water circulation pump 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.
Where is the hot water line installed?
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, the hot water instantly reaches the valve and is at your disposal whenever the valve is opened.
Does a cold water line have a return line?
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.
Does a recirculating water system reduce water waste?
Whether the hot water system is on-demand or automatic, it indeed 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 primarily known for delivering hot water to faucets quickly.
How does a recirculation system save water?
Beyond eliminating an inconvenient wait for hot water, a recirculation system saves thousands of gallons of water annually, water that would otherwise go down the drain as a homeowner waited for hot water to travel from the water heater to the faucet or showerhead.
How does a water heater work?
2. Water that cools in the system is heavier and denser than the hot water being supplied and falls through a return line to the lowest point in the system , the water heater. 3. A check valve keeps water in the water heater from flowing back into the return line. 4.
What is the most efficient type of recirculation system?
Gary Klein, managing director at Affiliated International Management and a former energy specialist at the California Energy Commission, says the most efficient type of recirculation system uses a pump that’s activated by a switch or motion sensor. These systems use the least amount of energy, save the most water, and have the lowest operating costs. The tradeoff is that these systems are a little slower than other types.
How does a gravity fed water heater work?
A gravity-fed system relies on thermosiphoning, in which hot water rises to the top of the system and denser, cold water falls to the bottom. For such a system to work, the water heater must be located below the hot-water taps it will serve. While pipe insulation and short plumbing runs help to reduce standby heat loss and energy consumption, this system uses more energy than others because it is operating 24 hours a day. However, because there are no pumps to install or maintain, this system is arguably the most user-friendly.
What is a sensor on a water pump?
The sensor lets the pump know when hot water has arrived at the farthest tap and shuts off the pump. Alternatively, a sensor can be placed on the return line immediately after the last tap in the system and hardwired to the pump. This will yield even lower pump run-times.
What keeps water in the water heater from flowing back into the return line?
3. A check valve keeps water in the water heater from flowing back into the return line.
Why does a plumbing system use more energy than other systems?
While pipe insulation and short plumbing runs help to reduce standby heat loss and energy consumption, this system uses more energy than others because it is operating 24 hours a day. However, because there are no pumps to install or maintain, this system is arguably the most user-friendly. 1.
How does a water circulation system work?
Have you ever given a thought to how the water circulation system works? It makes use of a technique called a sensor valve. The sensor valve lets the hot water circulating valve know when to shut down and turn on the pump.
How Does a Hot Water Recirculating Pump Work?
The hot water recirculating pump, as the name indicates, creates a loop for the hot water to move across all the fixtures, taps, and faucets in your water circulation system. The hot water is continuously recirculated through the entire plumbing including even the farthest of the fixtures. The sensor valve on the farthest fixture shuts off the pump when hot water reaches it, and turns it on when the hot water temperature goes below the threshold set. The hot water loop is continuously maintained at all times to avoid waiting for the hot water at any of the fixtures.
What Purpose Does a Recirculation Pump Serve?
A hot water recirculating pump lets you get the hot water supply at the instant you turn on the tap. By definition, a hot water recirculating pump is a special type of water pump installed at your home that provides you an instant or an almost instant availability of hot water to your tap or other fixtures.
How Does An “Under Sink” Hot Water Circulating Pump Work?
In many situations, hot water circulating pump is installed above the water heater. While that has been a standard procedure, there are instances where a hot water pump is installed under the sink. The installation procedure remains the same as in the case of above the water heater system, but you get a localized installation.
How Much Water Could You Save With A Water Recirculation Pump?
There have been different schools of thought about it. However, it has been assumed that on average of 31 gallons of water per day can be wasted while you wait for the hot water to be available at the faucet. Looking at the average cost of water rising, that can be considered to be a huge wastage.
What is the Main Cause of Slow Hot Water?
One of the prime reasons for the slow hot water is the distance between the source of hot water and each of the fixtures where the hot water is required. Most of the homes today have larger diameter water piping, which will take a huge time for the hot water to reach the destination fixtures.
What Are the Energy Costs of Water Recirculation Pumps?
In case you have a timer on the pump, the average cost – assuming an average of three to four hours of running – you will incur $20 to 30 per year on the energy costs for your water recirculation pump.
How to set up a recirculation system?
Other important components of a recirculation system include: 1 A check valve, which ensures the water flows in only one direction. This is a requirement for any water circulation system. 2 A temperature sensor, or aquastat, to monitor the water temperature and shut off the pump when it's high enough. This is an energy-saving feature that not all systems have. 3 A timer to allow you to program the pump to come on when at times of the day when you usually need it. This is another optional energy-saving feature.
What is a recirculation pump?
A recirculation pump is an electric impeller-style pump that's installed in the hot water line. It has 3/4-inch pipe thread connectors, and you place it in the hot water line next to the water heater or near the fixture that needs the hot water.
How does a water heater pump work?
The pump causes a constant slow stream of water to flow from the water heater to the bypass valve and back again, which keeps the water in the pipes comfortably warm. When you turn on a faucet tap, the bypass valve closes, allowing water to flow normally through the pipes.
What is the purpose of a recirculating pump?
The function of a recirculating pump is to keep hot water moving through the pipes so that it's available at the faucet immediately. It uses about the same amount of energy as a bathroom exhaust fan, and some systems are so efficient that the energy expenditure is even less than that. If you choose to install a recirculating pump, ...
When is the best time to install a recirculation system?
The best time to install a recirculation system is when you're installing new plumbing, because that way, you can install a separate hot water return pipe that connects to the water heater.
What is an automatic hot water system?
Most systems, however, are automatic. A sensor in the pump or installed somewhere in the hot water line monitors temperature and switches on the pump when the temperature falls below a certain value. Some other systems use a timer that the homeowner can program to turn on the system at particular times of the day.
What happens if you leave the water pump on?
If you just left the pump on to continuously recirculate water, the energy expenditure would cancel out the benefit of the saved water, and then some . For efficiency's sake, there must be some means of activating the system only when hot water is needed.
How do recirculating water pumps work?
Recirculating water pumps are rated by the number of gallons of water they pump per hour, which helps determine the optimal flow for the fountain. Basically the more water you want to pump, the higher the GPH you will need. Factors include the height of the fountain spray desire or the height the water must be pumped to before it returns to ...
How to reduce water level in recirculating fountain?
In addition to watching out for mineral buildup, you need to ensure that the water level in the recirculating fountain doesn't drop. Evaporation and splashing will reduce the level over time. Thirsty wildlife and pets, even ones that have water dishes a few feet away, enjoy drinking from recirculating fountains. If the pump runs without water it can quickly burn out. Monitor the unit, and refill the fountain as needed.
What is a recirculating fountain?
A recirculating fountain allows you to enjoy enjoy the soothing sounds of splashing water without stressing over the water bill or feeling guilty. The fountain can be an elegant focal point on a patio, a tranquil table-top fountain indoors or even a tiny brook and waterfall in the garden -- the choices are many.
Where is the bucket in a waterfall fountain?
In homemade fountains, a bucket is often buried below the main structure of the fountain to collect the water and house the pump.
Do recirculating fountains drop water?
In addition to watching out for mineral buildup, you need to ensure that the water level in the recirculating fountain doesn't drop. Evaporation and splashing will reduce the level over time.Thirsty wildlife and pets, even ones that have water dishes a few feet away, enjoy drinking from recirculating fountains.
What is a recirculating fountain?
While many styles of fountain installations exist, the most commonly found feature in many backyards is the recirculating fountain. A recirculating fountain is defined as a fountain feature that recycles water in a loop to provide a continuous stream of water.
Fountain Pumps and Reservoirs
Depending on the size of your recirculating fountain, you will need to take into consideration the size and function of several of its working parts. Larger fountains require both larger pumps and reservoirs to continue to work as desired without a need for constant attention or refilling.
Maintaining Circulation
In order to maintain efficient circulation in your fountain, you must take care not to neglect certain areas of care. The two main ways in which fountains cease to function properly can be linked back to improper filling, and failure to clear water channels.
Popular Backyard Fountain Styles
As with any popular outdoor design feature, many styles of recirculation fountains exist in a wide range of makes and materials. Deciding what design works best for your yard is contingent on your tastes and overall aesthetic goals.
Common Materials Used in Recirculating Fountains
Once you choose your preferred design for your recirculating fountain, the next step is deciding on an appropriate material. Today, backyard water features are created using a wide range of natural and manmade materials. Each comes with their own set of benefits and drawbacks, and each gives a slightly different finish to the space.
Installation
Cost and difficulty of installing a recirculating fountain in your backyard is contingent on a few key items. Location, design, material, and effect all have big say in the price tag and problems you may face implementing a recirculating fountain.
Power Sources
Function of your fountain can be determined by a variety of power sources including battery, electric, and solar powered energy. While each has its own benefits and drawbacks, the style that will work best in your yard is largely contingent on the overall look and feel of your space.
What is a Recirculating Shower?
Technology varies brand to brand, however, recirculating showers typically use small amounts of water and circulate in real-time to avoid single use of water and wasted ingrained heat. The systems often deploy a pump, levels of cleansing, and are not limiting the flow because the water is being re-used.
How is a Recirculating Shower different from your Shower?
Instead of just turning on your shower for it to fall down the drain, a recirculating shower captures, circulates and cleans your water to give you an optimal shower experience.
