The system you need is WaterQuick Tankless – the only hot water circulation system specifically designed for tankless water heaters.

It’s essential to address any signs of a failing tempering valve promptly. If you suspect a problem, contact a licensed plumber for inspection and repair.

Continuously running hot water through an on-demand water heater will void the warranty and quickly wear out the equipment.

Note: If water continues to flow, check to make sure that the water has been completely turned off. If the valve does not shut off the water flow completely turn off the valve supplying water to the house or at the water meter.

Hot water recirculating pumpinstallation diagram

The pump and Flow Monitor can be installed in the hot water line that comes out of the water heater and goes into the house. It does not need to be located next to the water heater but it needs to be located before the first hot water lateral.

But in order to get hot water faster without wasting water down the drain you need a circulation system. One that returns the cold water in the hot water line to the water heater and one that has a high speed pump to move the water faster than just water pressure alone can.

And it needs to be a system that does not operate continuously (continuous operation voids the water heater’s warranty) and that does not keep your water lines hot unless there is a demand for hot water (wastes energy and promotes pinhole leaks).

Pressure-balanced tempering valves rely on a pressure-balancing mechanism to maintain a constant temperature, regardless of pressure fluctuations in the water supply. They typically use a diaphragm or piston to regulate the flow of hot and cold water, ensuring a consistent temperature output even if pressure changes occur. Pressure-balanced valves are generally simple and reliable, making them a popular choice for residential applications.

Legally, a tempering valve cannot be set above 50 degrees Celsius to ensure safety. However, if you need to reduce the temperature to protect people in your home or business, a plumber can adjust the valve to a lower temperature, typically between 35 to 50 degrees Celsius. Remember, a minimum 10°C temperature differential is required between the hot water inlet and the mixed water outlet to guarantee proper operation of the thermal shut-off feature, further emphasising the importance of professional installation.

Home owners that have recently purchased a tankless water heater are surprised that it actually takes longer for the water to reach the faucet than it did with a traditional tank style water heater.

If you notice these signs, contact a licensed plumber for inspection and potential replacement. They can assess the valve’s condition and recommend the best course of action.

It takes a lot of energy to heat water instantly and it would not be good to apply that concentrated energy if the water is not moving. Of course water heaters have safety mechanisms built in to prevent this from happening.

Thermostatic tempering valves use a thermostat to control the temperature of the mixed water. The thermostat senses the temperature of the mixed water and adjusts the flow of hot and cold water to maintain the desired temperature. These valves offer precise temperature control and are often used in applications where consistent temperature is critical, such as commercial buildings and healthcare facilities. However, their more complex design can make them more expensive than pressure-balanced valves.

Did you know?AS/NZS 3500.4:2003 Plumbing and Drainage Part 4 states that all new heated water installations are to deliver heated water that does not exceed;

WaterQuick Tankless can be installed in several different configurations. The circulation pump and Flow Monitor can be installed in either the cold water supply line or in the hot water line going out into the house.

This will start the pump and within a few seconds you will have hot water everywhere in your home. The amount of time that you wait varies from home to home and is dependent on how far the sink is from the water heater, the size of your water pipes and how many turns there are in the water pipes.

The safe operation of this pump requires that it be grounded in accordance with the national Electrical Code and local government regulations.

If you install the circulation pump and Flow Monitor in the cold water line it must be located on the pipe that is the sole supply of water for the tankless heater. If it supplies water to any other fixture it may lead to false activation of the pumping system.

One safety feature is to delay turning on the heat until the water has been moving for a few seconds. This adds to the time that hot water takes to get to your faucet.

We love tankless water heaters because they are more energy efficient, you will never run out of hot water (when properly sized) and they take up less space.

Hot watertank

There are 2 switches that controls the speed of the pump and how it works. The first switch is located in the power cord and contains the connection box that the Flow Monitor wire snaps into.

Connect the wire from the Flow Monitor to the connector in the electrical wire from the pump. Set rocker switch to the Auto or II setting.

Electronically controlled tempering valves utilise an electronic controller to monitor and adjust the water temperature. They typically include sensors to detect the temperature of the mixed water and an electronic controller to adjust the flow of hot and cold water to maintain the desired temperature. Electronic tempering valves offer the most precise temperature control and can integrate with building automation systems, allowing for remote monitoring and control. They are often used in large commercial buildings and industrial facilities where sophisticated temperature control is required.

Water is quickly heated by an on-demand water heater when a hot water faucet is turned on but it can still take “forever” to get hot water at your sink or shower.

Note: Make sure the arrows on the pump and Flow Monitor are pointed in the direction of water flow (into the the water heater on the cold side and away from the water heater on the hot side).

How does ahot water recirculating pumpwork

Install pump and Flow Monitor into the water line using the appropriate fittings. We suggest using at least one union for ease of assembly.

No, a tempering valve can only be changed by a licensed plumber. Tempering valves are essential for hot water safety, and incorrect installation can lead to serious consequences like scalding, leaks, and damage to your plumbing system.

Note: If the Bridge Valve has been installed the pump will continue to run until 95°F water reaches the sink where the Bridge Valve is installed. The temperature sensor in the Bridge Valve will shut off and the water will stop flowing (unless a hot water faucet is open).

Replacing a tempering valve is a complex task requiring a licensed plumber with expertise in plumbing systems, proper tools, and a thorough understanding of local building codes and regulations. The installation must comply with Australian Standards AS/NZS 3500 and relevant Codes of Practice.

This pump is supplied with a grounding conductor. To reduce the risk of electrical shock, be certain that it is connected only to a properly grounded grounding type receptacle.

The orientation of the pump can be changed by unscrewing the 4 hex head bolts (circled in picture) that hold the can and volute together and rotating the can as necessary. The black electrical box with the 3 speed toggle switch does not need to be on top.

On-demand water heaters turn on when a hot water faucet is turned on. But before it starts heating the water it must make sure that the water is flowing.

The volute of the pump (silver part) can be installed in either a vertical or horizontal orientation. However the can (blue part) must be installed in a horizontal orientation.

The Advanced Bridge Valve should be installed under the kitchen or bathroom sink that is the farthest fixture from the water heater. Branched plumbing systems will need an Advanced Bridge Valve at the end of each line. Advanced Bridge Valves are available here:

Generally, a tempering valve can last 10-15 years with proper maintenance. However, it’s essential to watch for signs of failure, like:

Note: It is important that you take into consideration how the pump will be supported and where there is access to an electrical outlet.

Turning on any hot water faucet in the house to start the pump. Turning off the faucet will stop the pump (assuming that the Bridge Valve has not been installed yet).

The terms “hot water tempering valve” and “thermostatic mixing valve (TMV)” are often used interchangeably, but there’s a subtle difference. A hot water tempering valve is a general term for any valve that controls and limits the temperature of hot water delivered to fixtures. This category includes various valve types with different mechanisms. A thermostatic mixing valve (TMV) is a specific type of tempering valve that uses a thermostat to regulate the temperature of the mixed water. Essentially, all TMVs are tempering valves, but not all tempering valves are TMVs. In practical terms, the difference isn’t always significant. Both types perform the primary function of controlling hot water temperature to prevent scalding and ensure safety. However, specific features and capabilities may vary between different types of tempering valves.

To activate the WaterQuick Tankless hot water delivery system, simply turn on any hot water faucet in the house and quickly turn it off.

We proudly service Balgowlah, Bondi, Cammeray, Castlecrag, Chatswood, Coogee, Cremorne, Cremorne Point, Crows Nest, Dawes Point, Double Bay, Frenchs Forest, Hornsby, Kirribilli, Lavender Bay, McMahons Point, Milsons Point, Mosman, Naremburn, Narrabeen, Neutral Bay, North Sydney, Northbridge, Paddington, Randwick, Rose Bay, Ryde, St Ives, Vaucluse, Wahroonga, Waverton, Wollstonecraft and other suburbs on the Northern Beaches and Eastern Suburbs of New South Wales.

(a) 45°C at the outlet of sanitary fixtures used primarily for personal hygiene purposes for the aged, the sick, children
or people with disabilities
in healthcare and aged care buildings, early childhood centres, primary and secondary schools and nursing homes or similar facilities for the aged, the sick, children or people with disabilities; and

A hot water tempering valve is a safety device that controls the temperature of hot water delivered to fixtures like taps and showers. It mixes cold water with hot water to achieve a predetermined temperature, preventing scalding and ensuring comfortable hot water use. It is typically installed on the hot water line, between the hot water heater and the point where hot water enters the home’s plumbing system. It acts as a safety buffer, controlling the maximum hot water temperature before it reaches fixtures.