
Is a hot water recirculating pump worth it?
This is more than just an inconvenience, it's a waste of potentially thousands of gallons of water per year, and water is an increasingly precious resource. A recirculating pump can solve this dilemma. The function of a recirculating pump is to keep hot water moving through the pipes so that it's available at the faucet immediately.
How to install hot water recirculation pump?
INSTALL THE PUMP. With an adjustable wrench, disconnect the hot water discharge line coming out of your water heater. Insert a gasket into the female fitting on the recirculating pump and screw it onto the threads of the water heater discharge outlet. Use Teflon tape and tighten with a wrench.
How do hot water recirculation pump work?
How Does A Recirculating Pump Work? In order to function, the hot water recirculation pump must use a mix of gravitational and mechanical energy. It accelerates the flow of hot water through the faucets while also forcing cold water through the boiler. These are the fixtures that may be found in the majority of luxurious settings such as ...
How does hot water circulators work efficiently?
How does hot water circulators work efficiently? A hot water recirculating pump works by keeping the hot water in your pipes readily available. It returns the hot water back to your heater when you close the hot water faucet. In this way, the hot water plumbing pipes remain filled with hot water, and you do not have to wait to use hot water.

Do I need a hot water recirculating pump?
Recirculating Pump Comfort System The Comfort System can bring hot water quickly to areas in your home that take a long time to get hot water. For example, if your water is far away from your shower or kitchen, the recirculating pump will solve this problem. You also won't need to install additional pipe.
Is a circulating pump worth it?
If a household draws water ten times per day, over 31 gallons of water each day could be wasted while waiting for the hot water to appear. With the average national cost of water rising rapidly, a hot water recirculation pump could easily save you upwards of $50 each year.
Are hot water recirculation systems efficient?
In terms of energy efficiency, an on-demand hot water recirculation pump is far and away the best option. Some recirculation systems have pumps that run constantly or on a timer, but both types inevitably waste energy.
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.
How long does a hot water recirculating pump 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 much does it cost to install a hot water recirculation pump?
How Much Does a Hot Water Recirculation Pump Cost? The price tag of a hot water recirculation pump is around $200 and most can be installed by the consumer but some require a plumber.
Do recirculating pumps damage pipes?
Recirculating Hot Water Can Corrode Pipes.
What is the best hot water recirculating pump?
Top 5 Best Hot Water Recirculating PumpsThe Watts 500800 Hot Water Pump w/ Timer.Laing LHB0810092 Recirculating Pump w/ Timer.Grundfos GRU-595916 Instant Hot Water Pump.Grundfos 59896155 SuperBrute Recirculator Pump.Kolerflo Hot Water Recirculation Pump.
Where should a recirculating pump be installed?
0:054:20How to Install a Hot Water Recirculating System - YouTubeYouTubeStart of suggested clipEnd of suggested clipThere's the hot water recirculating pump which will be installed onto the hot water discharge lineMoreThere's the hot water recirculating pump which will be installed onto the hot water discharge line of your water heater.
How do you recirculate hot water in a house?
0:394:25How to Get Hot Water with a Recirculating Pump - YouTubeYouTubeStart of suggested clipEnd of suggested clipBack at the heater is a pump that moves hot water through the recirculation. Line it'll get hotMoreBack at the heater is a pump that moves hot water through the recirculation. Line it'll get hot water to the furthest plumbing fixture. And will deposit. Any cool water that was in the line.
How can I get hot water faster?
So, What Are the Options to Get Hot Water Faster?Recirculating Hot Water Systems. With the traditional tank water heater, turning the knob at the faucet starts the process of hot water making its trip through the pipes. ... Demand Hot Water Systems. ... Point-of-Use Tank Water Heaters. ... Point-of-Use Tankless Water Heaters.
Will a hot water recirculating pump keep pipes from freezing?
Hot water recirculation systems are one of the best ways to keep your pipes from freezing. Unlike their traditional counterparts, they don't use much water to keep the pipes warm.
Do recirculating pumps damage pipes?
Recirculating Hot Water Can Corrode Pipes.
What is the purpose of a circulating pump?
A circulation pump (also known as a recirculation pump) circulates fluid in a closed circuit with the intent of ensuring hot water is always available close to the consumption point. Consequently, water circulation pumps are commonly used to circulate the water in hydronic heating or cooling systems.
Where should a recirculating pump be installed?
0:054:20How to Install a Hot Water Recirculating System - YouTubeYouTubeStart of suggested clipEnd of suggested clipThere's the hot water recirculating pump which will be installed onto the hot water discharge lineMoreThere's the hot water recirculating pump which will be installed onto the hot water discharge line of your water heater.
Does a circulation pump increase pressure?
The hot water recirculation pump works by: Increase water pressure at the water heater. This propels the water to your faucet or shower much quicker. Returns the unused hot water in the pipe back to the water heater or boiler.
What is a circulation pump?
The most simple form is the basic circulation pump. This device is continuously on and constantly circulate water through the water heater and pipes. When the hot water faucet is on, the hot water is pumped out of the faucet.
What happens when water goes down the drain without a pump?
In a plumbing system without a pump, hot water can’t arrive at the faucet until the cold water in the pipes escapes, meaning lots of wasted water down the drain. A circulating pump keeps hot water flowing through the system so that its immediately accessible.
How does an aquastat work?
This type of circulation pump turns on at a programmed time and pumps water into a loop until it reaches a designated temperature. This is usually when a family uses hot water the most: in the morning during showers or in the evening when washing dishes or doing laundry. The aquastat can be changed at any time to fit changing household needs. Since the pump only operates when it’s needed, it can save a lot of money while still providing immediate hot water. There is a possibility that families can overuse this type of pump and expend excess energy, but this is an avoidable situation.
What is an on demand water pump?
As the name suggests, on-demand circulation pumps only operate when someone turns on the hot water in a sink, bathtub or other location. This system is equipped with either a switch or a motion detector that activates the pump when water begins to move in the hot water line. The pump will continue to circulate hot water from ...
Why is my water cold when turning on the faucet?
One is that cold water will likely be lukewarm when first turning on the faucet rather than cold if there is no dedicated return line in the home. For pumps that need power, it’s possible the homeowner will need to install a new outlet, and that can add to the initial costs.
Can you pump water out of a hot water faucet?
When the hot water faucet is on, the hot water is pumped out of the faucet. Otherwise, water is returned to the heater. Due to its inefficiency and wear and tear, we do not recommend homeowners install a simple pump.
Does Maeser have a water pump?
Maeser has successfully installed countless water circulation pumps for property owners throughout the Louisville area. Our experts will be happy to answer any questions you have about this technology and whether or not its right for your home. Request a quote or schedule an appointment today by calling or sending us a message.
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, ...
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 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.
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 a timer on a pump?
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. Advertisement. Higher-end pumps come with these features pre-installed. If you have a basic pump, you have to install the other components separately.
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.
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.
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.
Why is waiting for hot water bad?
No one enjoys waiting for the water to turn hot when standing at a faucet. It is a common annoyance but also severely impacts the environment. When waiting for hot water to be delivered to a sink or shower, countless gallons of clean water are wasted every year. The municipal energy costs to clean and provide the water to your home, as well as the associated homeowner costs to run a hot water system, accumulate over time, leading to excess energy waste that could have been better spent elsewhere.
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.
When does a thermostat turn on?
The thermostat ones are those with heat sensors; they turn on the pump when the water temperature falls below a specific temperature and switch off when it reaches a particular temperature.
How Does Water Recirculation Pump Work?
Let’s first subdivide the pumps into two categories to help you understand. The two types of pumps are;
Why do you need a recirculation pump?
Saves Time – opening a tap without this pump forces you to wait a couple of seconds before getting hot water. You may have to wait a little longer than a few seconds if the heater is far from the house. A recirculation pump solves this particular issue. By availing hot water instantly, it saves a lot of time that can be used to complete other tasks.
How does a water heater loop work?
So how does this system work? When unused hot water is left in the pipe, the pump draws it back to the heater through the loop. Therefore, when you need hot water, it is availed to you quickly through the loop’s hot water pipe.
Does a recirculation pump reduce water waste?
Reduces Wastage of Water – without this pump, when you open a hot water tap, cold water runs first. You must let the water run out before you can get access to hot water. As you let the cold water run out without being collected, it goes to waste. With a recirculation pump, the story is different. Hot water is available right when you request it, and no water is lost/wasted.
Is it frustrating to turn on hot water?
You may have been forced to wait a short while before hot water starts running. Not only is this frustrating, but it is also inconvenient.
Do you have to buy an additional pipe for a cold water pump?
Low Installation Cost – when purchasing this type of pump, you do not have to buy an additional pipe. This is because it uses the same one that carries cold water. With this, you get to save a lot of money while still getting exceptional results.
Do recirculating pumps have timers?
Many recirculating pumps also come with timers. Timers help you control the instances when you want the machine to be active.
How Does A Hot Water Recirculation Pump Work?
If it takes ‘forever’ for the hot water to start running, it usually means that there is a long pipe between a boiler (or a hot water heater or tankless water heater) and the faucet. The bigger the house, the longer these water pipes usually are, and the longest it takes to get hot water.
Why install a hot water pump?
The whole point of installing such a pump is to get hot water fast. Nobody really likes waiting for the hot water to start flowing under the shower or doing the dishes, for example.
How does hot water travel from a faucet to a shower?
When we turn on any faucet, the hot water needs to travel from the hot water heater to the faucet. It is propelled only by water pressure. If you add a powerful hot water circulation pump at the heater (not under the sink), the hot water will reach the faucet much faster. By installing a hot water circulation pump, you will have a hot shower right away.
What is a check valve in a water heater?
Check Valve. Every hot water recirculation pump (even tankless water heater circulation pumps) is required to have a check valve. Check valve ensures that the flow of water is in the right direction.
Why is my recirculation pump running continuously?
Obviously, you might be wondering: If the recirculation pump loop is running continuously, you’re probably expanding too much electricity just to get hot water faster.
What size threads are used for recirculation pump?
This is the system you can see in the photos above. The recirculation pump is fixed on the water heater. The 3/4-inch pipe thread connectors are used to connect the pump to your existing pipes.
How long does it take to install a hot water recirculation pump?
Easy Installation. It’s quite common to DIY hot water recirculation pumps. It will take about an hour but you can fully do it yourself, without the need to pay extra money to a plumber.
What is a Hot Water Recirculation Pump?
Hot water recirculation pumps are a nice convenience that allows you to benefit from an immediate supply of hot water to all of the faucets in your home. Instead of having to wait for the water to heat up every time you take a shower, wash your hands, or do the dishes, these unique systems will pump hot water through the hot water piping system and back to your heater. Sometimes these systems work with the cold water line. At other times, they have their own dedicated plumbing line.
How does a water recirculation pump work?
The system includes temperature sensors and a check valve that prevents water from going back into the return plumbing line. The recirculation pump actually moves water in the line back to the water heater, thus reducing the amount of time needed for hot water to reach your faucet.
What Is a Point of Use Tankless Water Heater?
A point of use tankless water heaters is usually located close to the faucet or showerhead. This strategic placement can drastically reduce the amount of wasted cold water. Because on-demand water heaters don't have a storage tank, there are no standby energy losses during periods when hot water is not being consumed.
How much electricity does a water recirculation pump use?
A pump that consumes 25 watts of power would use around 200 kWh of electricity each year. The average price of electricity in the US and Canada is $0.13 per kWh and $0.17 per kWh, respectively. So, you are looking at between about $26 and $34 each year, just to run your pump. Even if you were to trust the exaggerated expected water savings of 11,000 gallons each year, the cost of electricity to run the pump would still be more expensive than the average water savings for the vast majority of the country. Even without factoring in the $200 to $250 price tag of the pump itself (not to mention plumbing installation fees), there is no payback period.
How much water does a shower head use?
The average showerhead uses 2.1 gallons per minute (GPM) / 7.9 liters per minute (lpm), meaning that you could be wasting three gallons of water before you ever step foot into the shower. While low-flow showerheads can reduce wasted water, there is still a waiting time that leads to inevitable water loss. The water that goes down the drain will add up with each time you wash your hands, the dishes, brush your teeth, or turn on any faucet in your home.
What is Watts Premier?
Watts Premier is one company that specializes in selling hot water recirculation pumps. According to their calculations, the average household in the United States wastes 11,461 gallons of water each year while waiting for hot water to appear.
Does a water pump save money?
If you live in a state (such as California) where water prices are continually increasing, a hot water recirculation pump that comes with a programmable timer might end up saving you money. However, there are other water and electricity savings technologies that are more efficient and a better deal.
Why use a recirculation pump?
The most obvious benefit is that you have instant hot water in your sinks and tubs whenever you turn the faucet on. By not having to wait for hot water, you also run into the second benefit.
What is Watts pump?
The Watts system is a compact pump that will install on the tank with a ¾ inch threaded connector. You will also receive the comfort valve to connect under the furthest sink from the water tank.
How much hot water can a Grundfos pump move?
This Grundfos model is more powerful than the previous model. With a 1/6 horsepower motor, you can move up to 34 GPM of hot water. It also improves the head range by allowing vertical flow up to 36 feet. If you don’t want to mount this directly on the water tank, you can put it closer to the floor or off to the side.
How long is a recirculation pump warranty?
Finally, you will want to research the warranty and the final cost of the recirculation pump system. The warranty should be at least a year-long, and one that covers the system and the pump motor separately is ideal.
What is a taco circulator pump made of?
The Taco circulator pump is one of the most durable builds around. Struck from bronze, cast iron, or flanged steel, you can choose your material as well as your connections. Each model, including the Taco bronze circulator pump, comes in either sweat, threaded, or union ¾ inch connections.
How to determine water heater pump size?
Your pump size will be determined on how many feet of plumbing you have and the capacity of your water heater tank. If you purchase a pump that is too small, it will struggle to get hot water through the house. Likewise, it can work too hard for too long, resulting in motor burn out.
What are the advantages of a recirculation pump?
The most obvious benefit is that you have instant hot water in your sinks and tubs whenever you turn the faucet on. By not having to wait for hot water, you also run into the second benefit.

Types of Circulation Pumps and How They Work
- There are three types of circulation pumps that are most commonly used in modern homes. The most simple form is the basic circulation pump. This device is continuously on and constantly circulate water through the water heater and pipes. When the hot water faucet is on, the hot water is pumped out of the faucet. Otherwise, water is returned to the ...
Possible Disadvantages of Circulation Pumps
- Having instant access to hot water can be a blessing, but the convenience can come with some side effects. One is that cold water will likely be lukewarm when first turning on the faucet rather than cold if there is no dedicated return line in the home. For pumps that need power, it’s possible the homeowner will need to install a new outlet, and that can add to the initial costs. There’s als…
Installing A Circulating Pump
- It’s always a good idea for homeowners to hire professional plumbers to install any new components in their plumbing system. Circulation pumps are not incredibly complicated, but an expert installation will ensure that the system works correctly the first time. It’s also the best chance of avoiding problems down the line that could cost a lot of time and money. Maeser has …