Does it take a minute or two for hot water to arrive at your shower? If so, you’re not alone. Many homeowners face this frustrating issue, especially in homes where the water heater is located far from the bathroom. The delay in hot water isn’t just inconvenient—it can also waste water and energy. Thankfully, there are ways to fix this problem without major renovations.
One effective solution is installing a hot water recirculation system, which ensures hot water is ready and waiting when you need it. Let’s explore how this works and the options available for homes with or without a dedicated return line.
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What Is a Hot Water Recirculation System?
A hot water recirculation system uses a pump to circulate hot water through your home’s pipes, so you don’t have to wait for it to travel all the way from the water heater to your faucet or shower. If your home was built with a dedicated return line, the pump moves unused hot water back to the water heater, keeping the water in the pipes at the right temperature.
But what if your home doesn’t have a dedicated return line? That’s where modern solutions like transfer valves come into play.
No Return Line? No Problem: Install a Pump and Transfer Valve
For homes without a return line, you can still enjoy faster hot water by installing a pump along with a small device called a transfer valve. This system is affordable, effective, and much easier to install than running new pipes through your walls and ceilings. Here’s how it works:
How It Works
Pump at the Water Heater
A small pump is installed at your water heater (tank or tankless). This pump pushes hot water through the system.
Transfer Valve Under the Sink
The transfer valve is placed at the farthest sink in your home. This clever, non-electric device opens and closes based on water temperature.
• Below 90°F: The valve opens, allowing cooler water from the hot pipe to flow into the cold pipe.
• At 95°F: The valve closes once hot water arrives, ensuring your water is ready for use.
This creates a loop within your home’s plumbing, keeping hot water circulating without the need for a dedicated return line.
Pros and Cons of This System
Pros
No Major Renovation Required
There’s no need to open walls or run new pipes, saving time and money.
Convenient Installation
The pump and valve system can be installed with minimal disruption to your home.
Water and Energy Savings
You won’t waste water waiting for it to heat up.
Cons
Warm Cold Water Initially
For the first 30–60 seconds, cold water may come out lukewarm when you turn on the cold tap. Some people find this unpleasant for activities like brushing teeth or washing their face.
Choosing the Right System: Pumps and Transfer Valves
Not all pumps and transfer valves are created equal. The performance of your system heavily depends on the quality of these components.
Recommended Brands
AquaMotion
• AquaMotion makes some of the most reliable transfer valves on the market. Their pumps are versatile and work with various setups, including water heaters, tankless systems, and under-sink installations.
• Pro Tip: If you’re installing a pump outdoors, ensure it’s covered to protect it from overheating in the sun, even if it’s rated for outdoor use.
Grundfos
• Grundfos is known for producing excellent pumps. However, their transfer valves have had issues in the past. They may have resolved these problems, but AquaMotion remains the safer choice for reliable performance.
This creates a loop within your home’s plumbing, keeping hot water circulating without the need for a dedicated return line.
Which System Is Right for Your Home?
Choosing the best pump and system setup depends on your home’s unique plumbing layout and needs. AquaMotion offers pumps for all scenarios, including:
At the Water Heater
For systems with or without a return line.
Under the Sink
Ideal for homes without a return line.
Tankless Water Heaters
Specialized pumps to work with on-demand systems.
With so many options, it’s best to have a professional plumber assess your home and recommend the ideal system.
Call Oasis Plumbing for Expert Installation
If you’re in Miami, Oasis Plumbing can help you get hot water to your shower faster. We’ll inspect your plumbing system, determine the best pump and setup for your needs, and install it professionally to ensure reliable performance.
To learn more about why your water heater may be taking too long to heat and how to fix it, check out our blog: “Water Heater Takes Too Long to Heat? What You Can Do“.
Stop waiting for hot water—let us bring comfort and efficiency to your home today. Contact Oasis Plumbing in Miami to schedule your consultation!
