An undersized pump may not provide sufficient hot water, while an oversized pump can lead to unnecessary energy consumption. Proper sizing ensures your system operates efficiently and delivers hot water flow promptly to all fixtures.

This level of detail ensured that the heating load accurately matched each space's requirements, minimising energy waste and maximising comfort.

Simply sketch the pipe layout, add balancing valves, and use the auto-connect feature for fixtures. With one click, h2x combines your layout with project settings for accurate pipe sizing, flow rate calculations, and pump duties.

There are plenty of reasons to consider installing a hot water recirculating pump. First and foremost, it saves time. No more standing around waiting for hot water to arrive. This is particularly beneficial in larger homes where water has to travel a longer distance from the heater to the faucet.

So, how exactly does this practical device work? A hot water recirculation pump typically connects to your water heater and the plumbing or heating system. It creates a loop, constantly moving hot water through your pipes and back to the heater, keeping it hot and ready for use. Some systems include a return line, while others utilise existing cold water lines to recirculate the hot water.

CASE STUDIES Salon Republic, USA "The quality of the designs saw significant improvement with the adoption of h2x." "The software offers precision through detailed result outputs and advanced options for efficient pipe sizing, allowing heating engineers to optimise based on parameters like maximum velocity and pressure drop." Read the full case study

Plus, there are several benefits to enjoy, from convenience to energy savings. Ready to learn more about these incredible systems? Let’s get started!

These useful devices can transform your daily routine by delivering hot water instantly to your taps. Whether you’re an eco-conscious homeowner or simply tired of waiting, a hot water recirculating pump is a game-changer.

To prevent contamination due to back pressure, many health regulatory regimes require an air gap or mechanical backflow prevention assembly between the delivery point of mains water and local storage or use.[2] Where submerged mains inflow is permitted,[further explanation needed] a backflow prevention assembly is required, which protects the potable water system from contamination hazards. A check valve is a basic form of backflow prevention, but often more complex devices are required because check valves are not considered to be reliable, when compared to more sophisticated devices with redundancies and reduced-pressure zones.[further explanation needed]

Some popular brands include Grundfos, Laing, and Watts. Look for models that match your home’s specific needs and offer features like timers, thermostats, and energy-efficient settings. Also, be sure to read reviews and consider professional recommendations to find the best pump for your setup.

Yes, many hot water pumps are compatible with tankless water heaters. However, be sure to choose a pump designed for this type of system.

In the US, the Environmental Protection Agency (EPA) holds local water suppliers responsible for maintaining a certain amount of purity in potable water systems. Many states and/or local municipalities require annual testing of backflow prevention assemblies. In most cases, the law requires a double check (DC), reduced pressure principle device (RP) device, or an air gap when backflow prevention is mandated.[citation needed]

These systems contribute to sustainable living by minimising water and energy waste. For eco-conscious homeowners, installing a hot water recirculating pump is a step towards a greener, more sustainable future.

A recirculating pump is a small device that circulates hot water throughout your plumbing or heating system. Instead of letting the water cool down and stagnate in the pipes, the pump keeps it moving, ensuring that hot water is always available when you turn on the tap. It’s like having a hot water concierge at your service 24/7!

Installation costs can vary depending on the type of pump and whether you hire a professional or do it yourself. On average, professional installation can range from £400 / $500 to £1,200 / $1,500.

Choosing the right size pump is crucial for optimal performance. Factors to consider include the size of your home, the distance from the water heater to the farthest faucet, and the flow rate required. A professional plumber can help you determine the best pump size for your specific needs.

A closely related device is the backwater valve, which is designed to prevent sewage from backing up into a building and causing basement flooding.[1]

Yes, especially models with timers or thermostats that optimise operation. By reducing water waste and running efficiently, these pumps can help lower energy consumption.

Moreover, advanced models with timers and thermostats optimise energy use, running only when necessary. This precise control can lead to significant energy savings over time, making hot water pumps a smart investment for eco-conscious homeowners.

Alternatively, a specialized backflow preventer valve may be installed at strategic locations in the plumbing system wherever there is a risk of contaminated fluids entering the water supply pipes. These valves are used where there is not sufficient vertical clearance or physical space to install an air gap, or when pressurized operation or other factors rule out use of an air gap. Because these valves use moving parts, they are often required to be inspected or tested periodically.

Learn how a hot water recirculating pump works, their benefits, types, installation tips, energy savings, and maintenance for increased home comfort!

If you’re interested in learning more about h2x, we’d love to hear from you. You can book a free demo or sign up for a 14-day free trial today!

Demand-controlled recirculating pumps are designed to operate only when hot water is needed. They are equipped with sensors that detect when a faucet is turned on and activate the pump to provide hot water flow quickly. Furthermore, this type of pump is highly efficient because it minimises energy use and maximises convenience.

A typical hot water recirculation system consists of several key components. The pump itself is the heart of the system, responsible for circulating water through the pipes.

First, identify a suitable location near your water heater to install the pump. Most systems come with detailed installation guides to assist you. You’ll need basic plumbing tools and materials, including wrenches, pipe cutters, and Teflon tape.

Backflow means the undesirable reversal of flow of a liquid, gas, or suspended solid into the potable water supply; a backflow preventer is designed to keep this from happening. Points at which a potable water system connects with a non-potable water system are called cross connections. Such connections occur naturally in appliances such as clothes washers and dishwashers, but they must be carefully designed and installed to prevent backflow. Another common location for a backflow preventer is the connection of a fire sprinkler system to a water main, to prevent pressurized water from flowing from the fire suppression system into the public water supply.

"I would estimate over the length of this project, I have spent 50% less time designing than I would on our previous software.

Check out the video below to see how it works. For more details, read a case study here showcasing real-world results matched exactly with the h2x calculations.

View results in the software or export them as a spreadsheet. You can also export your drawing to PDF, AutoCAD, or Revit files.

The strategic placement of heat pumps and careful sizing of pipework were crucial in maintaining minimal pressure drops over an 18-metre distance."

"The software offers precision through detailed result outputs and advanced options for efficient pipe sizing, allowing heating engineers to optimise based on parameters like maximum velocity and pressure drop."

Additionally, hot water recirculating pumps offer significant water savings. By reducing the amount of water wasted while waiting for it to heat up, these pumps help conserve this precious resource. Over time, this can lead to lower water bills, making the investment in a recirculating pump a financially savvy decision.

Like any mechanical device, hot water recirculation pumps can occasionally run into issues. Common problems include noise, leaks, and reduced efficiency. However, regular maintenance and timely troubleshooting can help address these issues promptly.

Modern systems often come with advanced features like timers, thermostats, and sensors to enhance efficiency. For example, a hot water recirculating pump with a timer can be programmed to run during peak usage hours, while a thermostat-controlled pump ensures the water stays within a desired temperature range. Overall, these smart features make the system more cost-effective by saving energy and reducing operating costs.

One of the standout benefits of hot water recirculating pumps is their energy efficiency. By reducing the amount of water wasted while waiting for it to heat up, these pumps help lower your overall water consumption. This translates to lower water bills and a reduced environmental footprint.

Have you ever turned on your shower, only to wait an eternity for hot water to flow? It’s a common frustration, but what if I told you there’s a simple solution? Enter the world of hot water recirculating pumps!

Back-siphonage occurs when higher pressure fluids, gases, or suspended solids move to an area of lower pressure fluids. For example, when a drinking straw is used to consume a beverage, suction reduces the pressure of fluid inside the straw, causing liquid to move from the cup to inside the straw and then into the drinker's mouth. A significant drop of pressure in a water delivery system creates a similar suction, pulling possibly undesirable material into the system. This is an example of an indirect cross-connection.

The installation process typically involves connecting the pump to your water heater and heating or plumbing system, installing a check valve, and setting up any additional components like timers or thermostats. Once installed, test the system to ensure it’s functioning correctly and adjust settings as needed.

In conclusion, hot water recirculation pumps are a valuable addition to any home. They offer convenience, water and energy savings, and environmental benefits. Whether you’re looking to reduce water waste, lower your utility bills, or enjoy instant hot water, a recirculating pump is a worthwhile investment.

CASE STUDIES Greengate, UK "I would estimate over the length of this project, I have spent 50% less time designing than I would on our previous software. The ability to output the design straight into Revit assisted clash detection and coordination." Read the full case study

The simplest, most reliable way to provide backflow prevention is to provide an air gap. An air gap is simply an open vertical space between any device that connects to a plumbing system (like a valve or faucet) and any place where contaminated water can collect or pool. A simple air gap has no moving parts, other than flowing water. Many plumbing codes specify a minimum air gap distance required for various circumstances, such as a drain connection for a dishwasher, e.g., BS 6282.

In water distribution systems, water is normally maintained at a significant pressure to enable water to flow from the tap, shower, or other fixture. Water pressure may fail or be reduced when a water main bursts, pipes freeze, or there is unexpectedly high demand on the water system (for example, when several fire hydrants are opened). Reduced pressure in the pipe may allow contaminated water from the soil, from storage, or from other sources to be drawn up into the system.

Hot water recirculating systems offer significant environmental benefits. By reducing water waste, they help conserve this vital resource, especially in areas prone to drought or water shortages. Additionally, energy-efficient pumps lower overall energy consumption, reducing your home’s carbon footprint.

If you experience noise, check for loose components or air in the system. Leaks can often be fixed by tightening connections or replacing worn-out seals. If the pump isn’t working efficiently, ensure the timer or thermostat is set correctly and that there are no blockages in the pipes. Regular inspections and maintenance can keep your system running smoothly.

A check valve ensures water flows in the correct direction, preventing backflow. Additionally, advanced systems may feature timers, thermostats, and sensors to control the pump’s operation and enhance efficiency. These components work together to provide a seamless, energy-efficient solution to your hot water needs.

In many countries. approved backflow prevention assemblies are required by law, and must be installed in accordance with plumbing or building codes.[example needed] A typical backflow assembly has test cocks and shut-off valves, and must be tested when installed, if relocated or repaired, and also on a periodic basis.[citation needed]

Imagine the luxury of instant hot water in your kitchen, bathroom, and laundry room. With a recirculating pump, that’s exactly what you get. This not only makes your home more comfortable but also reduces water waste significantly. No more running the tap and watching precious gallons go down the drain as you wait for it to heat up.

Back-pressure occurs for example when air is blown through the straw and bubbles begin to erupt at the submerged end. If, instead of air, natural gas had been forced into a potable water tank, the gas in turn could be carried to a kitchen faucet. This is an example of a direct cross-connection, with undesirable material being pushed into the system.

With various types available, including demand-controlled, timer-controlled, and temperature-controlled pumps, there’s a solution to suit every household’s needs. Therefore, consider your hot water usage patterns and specific requirements to choose the best system for your home.

Hot water recirculating pumps are designed to keep hot water flowing through your pipes, ensuring you get hot water on demand. Say goodbye to wasting water while waiting for it to heat up.

Maintaining your hot water recirculating pump is essential for long-term performance. Regularly check for leaks, tighten any loose connections, and inspect the pump and components for signs of wear. Clean the pump’s inlet screen to prevent debris buildup and ensure smooth operation.

CASE STUDIES Award-Winning Heating Design "Using h2x was pivotal, allowing for precise heat loss calculations, pipe sizing and flow rates for each room. This level of detail ensured that the heating load accurately matched each space's requirements, minimising energy waste and maximising comfort. The strategic placement of heat pumps and careful sizing of pipework were crucial in maintaining minimal pressure drops over an 18-metre distance." Read the full case study

It’s also important to test the system periodically to ensure it’s working correctly. Adjust timers and thermostats as needed to match your hot water usage patterns. By following these simple maintenance tips, you can extend the life of your pump and keep your hot water system running efficiently.

Regular maintenance should be performed annually, including checking for leaks, cleaning the inlet screen, and testing the system.

Temperature-controlled recirculating pumps maintain water temperature within a specified range. These pumps activate when the water temperature drops below a certain point, ensuring a constant supply of hot water flow. Therefore, this type of system is particularly useful for maintaining consistent water flow temperatures in climates with fluctuating temperatures.

Back pressure can force an undesirable contaminant to enter potable water piping. Sources of back pressure may be boilers, heat exchanging equipment, power washing equipment, fire sprinklers, or pumps in the water distribution system. In some cases there may be an almost continuous risk of overcoming the static water pressure in the piping. To reduce the risk of contamination, a backflow preventer can be fitted. A backflow preventer is also important when potentially toxic chemicals are used, for instance for commercial/industrial descaling of boilers, or when chemical bleaches are used for residential power washing.

Timer-controlled recirculating pumps run on a set schedule, turning on and off at predetermined times. This is ideal for households with predictable hot water usage patterns, such as in the morning and evening. By limiting operation to specific times, these pumps save energy while ensuring hot water is available when you need it most.