Hot Water Ottawa

Do You Need a Recirculating Pump with a Tankless Water Heater?

Couple together on laptop searching whether or not you need a recirculating pump for your tankless water heater.

When it comes to tankless water heaters, one question that often arises is whether a recirculation pump is necessary. While it is true that a recirculation pump is not always essential, there are several benefits to installing one.

A common problem that homeowners with tankless water heaters face is the amount of time it takes for the hot water to reach the proper temperature and reach the faucet. Money simply goes down the drain while your tap is open. If you’re tired of energy and water waste, a recirculation method (such as an integrated pump and a recirculation line) can help!

Let’s take a look at how a recirculation pump works and discuss the pros and cons to help you make an informed decision. At Hot Water Ottawa, we specialize in the best tankless water heater solutions and can provide you with expert advice and a customized quote tailored to your needs.

How Does a Recirculation Pump Work?Rinnai Tankless RUCS Model

A recirculation pump is designed to circulate hot water throughout your plumbing system, ensuring instant hot water at every faucet. It operates by continuously circulating water from the hot water line back to the water heater, maintaining a constant supply of hot water close to the fixtures. This eliminates the need to wait for the water to heat up and reduces water wastage.

This recirculation system is set up to prevent water in the pipes from cooling off, which means you have instant hot water whenever you turn on the tap or shower.

Pros of Getting a Recirculation Pump

Instant Hot Water

The primary advantage of a recirculation system is the ability to have hot water readily available at every faucet in your home. Say goodbye to the frustration of waiting for the water to heat up before you can take a shower or wash your hands.

Your tankless hot water heater already allows you access to endless hot water—adding an integrated recirculation pump will eliminate the cold water from your pipes and give you a truly continuous hot water supply.

Use Less Water

By having hot water instantly available, you can significantly reduce water wastage. No more letting the cold water run while you wait for it to reach the desired temperature. Recirculation pumps ensure that hot water is readily accessible, minimizing water usage, saving money on tankless energy bills and promoting water conservation.

Cons of a Recirculation Pump


One drawback of recirculation pumps is the cost. Getting a built-in recirculation pump installed can involve additional expenses. However, just like a tankless water heater, it’s important to consider the long-term benefits and convenience it provides to your home. If your household is tired of wasting cold water, a recirculating pump might be worth it.

Increased Energy Use

Operating a recirculation pump requires energy to continually circulate the water. This can result in slightly higher energy consumption. However, newer recirculation pump models have become more energy-efficient, mitigating this concern to some extent. Plus, with the energy savings you get with a tankless water heater, the circulation pump

Hot Water Ottawa Can Help With Your Tankless Water Heater Recirculation Pump Installation

While a recirculation pump is not always necessary with a tankless water heater, it offers significant advantages for getting an instant, endless supply of heated water, not to mention eliminating wasting water, especially during peak water usage times.

At Hot Water Ottawa, we understand the importance of tailoring solutions to our customers’ needs. Our team of experts can assess your specific requirements and provide you with a customized quote for a tankless water heater with or without recirculation technology. Contact us today to learn more about our services and explore the water heater rental options available to you. Say goodbye to wasted water and enjoy the convenience of instant hot water throughout your home.


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