---
product_id: 3985949
title: "Watts Hot Water Recirculation System with Programmable Timer for Tank Water Heaters, Instant Hot Water, 120V Pump, 10 ft Cord, 2 Adapters, Sensor Valve, Mounting Screws, 2 Supply Lines (0955800)"
brand: "watts premier"
price: "€ 746.35"
currency: EUR
in_stock: true
reviews_count: 13
url: https://www.desertcart.at/products/3985949-watts-hot-water-recirculation-system-with-programmable-timer-for-tank
store_origin: AT
region: Austria
---

# 120V efficient power Saves up to 15,000 gallons/year Programmable 24-hr timer Watts Hot Water Recirculation System with Programmable Timer for Tank Water Heaters, Instant Hot Water, 120V Pump, 10 ft Cord, 2 Adapters, Sensor Valve, Mounting Screws, 2 Supply Lines (0955800)

**Brand:** watts premier
**Price:** € 746.35
**Availability:** ✅ In Stock

## Summary

> 💧 Hot water on demand, savings on repeat—because every drop counts!

## Quick Answers

- **What is this?** Watts Hot Water Recirculation System with Programmable Timer for Tank Water Heaters, Instant Hot Water, 120V Pump, 10 ft Cord, 2 Adapters, Sensor Valve, Mounting Screws, 2 Supply Lines (0955800) by watts premier
- **How much does it cost?** € 746.35 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.at](https://www.desertcart.at/products/3985949-watts-hot-water-recirculation-system-with-programmable-timer-for-tank)

## Best For

- watts premier enthusiasts

## Why This Product

- Trusted watts premier brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Smart Savings Mode:** Built-in programmable timer adapts to your schedule, cutting water waste and bills by up to 10%.
- • **Whisper-Quiet Efficiency:** Heavy-duty stainless steel pump in aluminum housing runs silently, blending seamlessly into your home.
- • **Instant Hot Water, Zero Wait:** Thermal bypass tech delivers hot water in just 15 seconds—never waste time again.
- • **Plug & Play DIY Installation:** 120V system installs easily with no extra plumbing or electricity needed—complete kit included.
- • **Eco-Friendly Water Conservation:** Reduce water waste by up to 15,000 gallons annually—join the movement to save our planet’s most precious resource.

## Overview

The Watts Hot Water Recirculation System is a 120V, easy-to-install pump with thermal bypass technology that delivers hot water in 15 seconds at every faucet. Featuring a programmable 24-hour timer, it saves up to 15,000 gallons of water annually and reduces water bills by up to 10%. Designed for tank water heaters, this quiet, maintenance-free system includes all installation components and is built with durable stainless steel and aluminum housing.

## Description

Product Description Extremely quiet and energy-efficient, the Watts Hot Water Recirculation System utilizes thermal bypass technology to instantly supply hot water in about 15 seconds at every faucet or shower when needed. The sensor valve opens when the water on the hot water side cools, pushes the cool water back to the water heater, and closes when hot water line hits 98°F.Operating on 120V, the system easily installs into existing plumbing without the need for a return line or additional electricity under the sink, and once installed requires no maintenance. Includes everything you need for installation: heavy-duty stainless steel pump head in aluminum housing, 10 ft cord, 2 adapters with rubber washers, valve mounting screws, and two 12-inch supply lines. This product measures 6.2" x 6.0" x 5.0", weighs 8.4 lbs., and is highly resistant to stain and corrosion.With the Watts Hot Water Recirculation System, your days of wasting time, water, and money are over. With hot water available in 15 seconds, this convenient system can lead to significant water and money savings: up to 15,000 gallons per year and up to 10% off your water bill!This pump also includes a convenient built-in programmable timer that can be set to run for 24 hours a day or to activate only during peak use times. Its 24-hour dial features quarter-hour division tabs and AM/PM indications so you can easily set operation of the circulator according to your household's water usage patterns.Not designed for tankless water heaters. For indoor use only. From the Manufacturer The Watts Premier hot water recirculation pump puts hot water at every tap when you want it. Saves up to 15,000 gallons per year. The pump brings convenience and savings to your home, giving you hot water instantly at every faucet, when you need it. This unique product is easy to install and not only provides you with the convenience of hot water when you need it, but saves an average of over 11,000 gallons per year. *May not work with a tankless water heater.

Review: Nearly instant hot water when I need it. - This was well worth the money. I live in an older ranch style house and the hot water for the shower has to go the full length of the home before getting to the shower. I’d have to run it for a minute or two before it got warm than hot wasting a lot of water. This pump gives me nearly instant hot water with just a few seconds delay. Install: all needed parts were included and it was very simple to install in the water heater and under the sink. When installing on your water heater just make sure to follow the simple directions. You do not need to drain your entire water heater. Just close the inlet valve and drain off a few gallons to remove any pressure from the outlet side. Screw on the pump, plug is it and fire up the after heater again. Using the pump: the built in timer allows for off, timer, constant on. In the off position it’s as if it isn’t installed. You just have to wait for hot water. Constant on means the pump is always on and gives you instant hot water at all times. Timer allows you to select periods of time that it runs and break it down to 15 minute increments over 24 hours. It will continue to run while the timer is in that particular time block. It will be using power to keep the pump spinning but it won’t feed hot water. The valve you install under your sink allows water to flow until the temperature of that water hits a set pint in which the valve automatically closes and water stops flow. The pump will continue to run though. This does not wear it out or cause issues with your plumbing, don’t worry. It’s also nearly silent. Overall it’s a great investment to save water and energy.
Review: Well worth the money and SO easy to install. - After years of waiting for water to reach the far areas of my house, I had finally had enough. This pump exceeded my expectations and works flawlessly. It sat on my counter for a few weeks until I finally decided to install it. Installation time was less than 30 min. It took me longer to get the junk out from beneath the far sink than it did to install. The instructions are straight forward and easy to understand. I did the under the sink valve first. They supply you with all the right hoses and connections. I did have to get long hoses, but that is not the fault of the mfg. My supply pipes are further apart. I bought longer hoses and everything was golden. Installing the pump was beyond easy. Yes I did have to buy the correct CPVC fittings with 3/4" threads to connect to the pump. Less than a dollar at the local hardware. Off the discharge pump I went with a flexible hose that connected to my system. You will have to buy a few extra pvc fittings if you need to make it work with your water heater system. It took less than 30 min to install in total and I plugged it in. I could tell it was working, but the pump is extremely quiet. We set the mode to timer, because we want it on from early morning to around 11 pm at night then the timer shuts off the pump. You will still have hot water, but just not as fast as when the pump is working. Even if you let it run all the time, it would cost around $20 a year, tops, but the timer is a nice feature. So far I am extremely happy with the product and it has hot water at our furthest sink within 5 seconds. Don't hesitate to buy this product.

## Features

- INSTANT HOT WATER: The Watts Hot Water Recirculation System utilizes thermal bypass technology to instantly supply hot water in seconds at every faucet or shower when needed. The sensor valve opens when the water on the hot water side cools, pushes the cool water back to the water heater, and closes when the hot water line reaches 98 degreesF. . Not designed for tankless water heaters.
- EASY DIY INSTALLATION: Operating on 120V, this quiet, efficient system easily installs into existing plumbing without the need for a return line or additional electricity under the sink, and once installed requires no maintenance. Includes everything you need for installation: heavy-duty stainless steel pump head in aluminum housing, 10 ft cord, 2 adapters with rubber washers, valve mounting screws, and two 12-inch supply lines.
- WATER CONSERVATION: Your days of wasting time and water are over. With hot water available in just 15 seconds, this convenient system can lead to significant water bill savings, including saving up to 15,000 gallons of water every year.
- CUSTOMIZABLE OPERATION: This pump includes a convenient built-in programmable timer that can be set to run for 24 hours a day or to activate only during peak use times. Its 24-hour dial features quarter-hour division tabs and AM/PM indications so you can easily set operation of the circulator according to your household's water usage patterns.
- EVERY DROP COUNTS: Water. It's in our name and close to our hearts. Since 1874, Watts Water Technologies has been delivering innovative technologies that make the world's most precious resource safe and accessible. Everything designed by Watts is made to keep the Earth's most precious resource safer, cleaner, and more useful for our customers.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B000E78XHG |
| Best Sellers Rank | #24,295 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #41 in Water Heaters & Parts |
| Brand | Watts Premier |
| Brand Name | Watts Premier |
| Color | 6.2 Inches X 6.0 Inches X 5.0 Inches Device + Equipment |
| Customer Reviews | 4.5 out of 5 stars 5,411 Reviews |
| Flow Rate | 6 liters per minute |
| Global Trade Identification Number | 00098268254761 |
| Included Components | Pump, sensor valve, fittings. |
| Item Dimensions L x W x H | 6.2"L x 6"W x 5"H |
| Item Type Name | Instant Hot Water Recirculating Pump System with Built-In Timer |
| Item Weight | 6.4 pounds |
| Manufacturer | Watts |
| Manufacturer Part Number | 0955800 |
| Manufacturer Warranty Description | Watts (the "Company") warrants each product to be free from defects in material and workmanship under normal usage for a period of one year from the date of original shipment. In the event of such defects within the warranty period, the Company will, at its option, replace or recondition the product without charge |
| Material | Aluminum |
| Material Type | Aluminum |
| Model Number | Instant |
| Number of Items | 1 |
| Number of Packs | 1 |
| Power Source | Corded Plug |
| Product Dimensions | 6.2"L x 6"W x 5"H |
| Product Style | Pump |
| Style | Pump |
| UPC | 737946470047 733353301905 798813036773 752913142826 735090278151 098268433470 098268253764 |
| Unit Count | 1 Count |
| Voltage | 120 volts |

## Product Details

- **Brand:** Watts Premier
- **Color:** 6.2 Inches X 6.0 Inches X 5.0 Inches Device + Equipment
- **Global Trade Identification Number:** 00098268254761
- **Item Weight:** 6.4 pounds
- **Material:** Aluminum
- **Maximum Flow Rate:** 6 liters per minute
- **Power Source:** Corded Plug
- **Product Dimensions:** 6.2"L x 6"W x 5"H
- **Style:** Pump
- **Voltage:** 120 volts

## Images

![Watts Hot Water Recirculation System with Programmable Timer for Tank Water Heaters, Instant Hot Water, 120V Pump, 10 ft Cord, 2 Adapters, Sensor Valve, Mounting Screws, 2 Supply Lines (0955800) - Image 1](https://m.media-amazon.com/images/I/71XiIit7Z5L.jpg)
![Watts Hot Water Recirculation System with Programmable Timer for Tank Water Heaters, Instant Hot Water, 120V Pump, 10 ft Cord, 2 Adapters, Sensor Valve, Mounting Screws, 2 Supply Lines (0955800) - Image 2](https://m.media-amazon.com/images/I/716RntFZfiL.jpg)
![Watts Hot Water Recirculation System with Programmable Timer for Tank Water Heaters, Instant Hot Water, 120V Pump, 10 ft Cord, 2 Adapters, Sensor Valve, Mounting Screws, 2 Supply Lines (0955800) - Image 3](https://m.media-amazon.com/images/I/718OMYHzdcL.jpg)
![Watts Hot Water Recirculation System with Programmable Timer for Tank Water Heaters, Instant Hot Water, 120V Pump, 10 ft Cord, 2 Adapters, Sensor Valve, Mounting Screws, 2 Supply Lines (0955800) - Image 4](https://m.media-amazon.com/images/I/71HkdrczIBL.jpg)
![Watts Hot Water Recirculation System with Programmable Timer for Tank Water Heaters, Instant Hot Water, 120V Pump, 10 ft Cord, 2 Adapters, Sensor Valve, Mounting Screws, 2 Supply Lines (0955800) - Image 5](https://m.media-amazon.com/images/I/715jbGLCqgL.jpg)

## Available Options

This product comes in different **Size** options.

## Questions & Answers

**Q: So what this does is move the hot water through the pipes constantly, not just when you need it? Seems like an energy suck. Is it?**
A: If you run this all the time you will likely increase your water heating costs significantly as you are turning your pipes into a big radiant heater.  You can use the built in timer to only have it come on at set periods, but this will only work if you have a very fixed schedule.  I attacked this another way.  I plugged the unit into a TP-Link HS110 Smart plug that is Alexa controlled.  I can just say turn on hot water pump or turn off hot water pump when I want to control it.  But that was not good enough for me.  I found that if this pump ran for four minutes it would give me hot water at the distant shower that I wanted, so I did the following.  I wrote a routine to turn on the pump, wait four minutes and then turn it off.  While I can run this by voice, I bought the new Amazon Alexa Button, they are about $14 for a two pack.  The button is battery operated and communicates to another Alexa device.  Just before I take a shower I push the button and within four minutes the water will be hot without having to run water.

**Q: If the pump is on, and the water is hot, the sensor valve closes, right?  Isn't the pump trying to push water against a totally closed line?**
A: The pump just stirs water in the pump housing. It's not a positive displacement pump, so it has no problem doing that. But most of the time the control valve allows a trickle of hot water to flow, just enough to keep the faucet temperature at a constant 100°.

**Q: can i used without the sensor valve**
A: The control valve keeps the water temperature at the faucet at 100° by slowing the flow to a trickle. If you don't use the control valve, be prepared for the hot water to circulate at full speed and the temperature at the faucet to go up to whatever your water heater is set for.

**Q: Does this shut down the flow completely once temperature is reached or will it continue to trickle water into the cold water line?**
A: The valve allows a slow flow of water back through the cold water line, enough to maintain the temperature at the faucet at about 100°F. If you let the hot water run, the temperature at the faucet goes over 100°F, and the valve shuts off the back flow through the cold water line. After the faucet is shut off, the water in the valve will cool to below 100°F, and the valve will crack open and allow some flow to keep the water warm. The valve does not bang open and shut. It opens more or less, as needed to keep the water warm at the faucet. It doesn't depend on the temperature set at the water heater, except that if the water is very hot, obviously it takes less to keep the water warm at the faucet. The valve accomplishes this automatically.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Nearly instant hot water when I need it.
*by A***N on October 24, 2019*

This was well worth the money. I live in an older ranch style house and the hot water for the shower has to go the full length of the home before getting to the shower. I’d have to run it for a minute or two before it got warm than hot wasting a lot of water. This pump gives me nearly instant hot water with just a few seconds delay. Install: all needed parts were included and it was very simple to install in the water heater and under the sink. When installing on your water heater just make sure to follow the simple directions. You do not need to drain your entire water heater. Just close the inlet valve and drain off a few gallons to remove any pressure from the outlet side. Screw on the pump, plug is it and fire up the after heater again. Using the pump: the built in timer allows for off, timer, constant on. In the off position it’s as if it isn’t installed. You just have to wait for hot water. Constant on means the pump is always on and gives you instant hot water at all times. Timer allows you to select periods of time that it runs and break it down to 15 minute increments over 24 hours. It will continue to run while the timer is in that particular time block. It will be using power to keep the pump spinning but it won’t feed hot water. The valve you install under your sink allows water to flow until the temperature of that water hits a set pint in which the valve automatically closes and water stops flow. The pump will continue to run though. This does not wear it out or cause issues with your plumbing, don’t worry. It’s also nearly silent. Overall it’s a great investment to save water and energy.

### ⭐⭐⭐⭐⭐ Well worth the money and SO easy to install.
*by R***R on May 19, 2024*

After years of waiting for water to reach the far areas of my house, I had finally had enough. This pump exceeded my expectations and works flawlessly. It sat on my counter for a few weeks until I finally decided to install it. Installation time was less than 30 min. It took me longer to get the junk out from beneath the far sink than it did to install. The instructions are straight forward and easy to understand. I did the under the sink valve first. They supply you with all the right hoses and connections. I did have to get long hoses, but that is not the fault of the mfg. My supply pipes are further apart. I bought longer hoses and everything was golden. Installing the pump was beyond easy. Yes I did have to buy the correct CPVC fittings with 3/4" threads to connect to the pump. Less than a dollar at the local hardware. Off the discharge pump I went with a flexible hose that connected to my system. You will have to buy a few extra pvc fittings if you need to make it work with your water heater system. It took less than 30 min to install in total and I plugged it in. I could tell it was working, but the pump is extremely quiet. We set the mode to timer, because we want it on from early morning to around 11 pm at night then the timer shuts off the pump. You will still have hot water, but just not as fast as when the pump is working. Even if you let it run all the time, it would cost around $20 a year, tops, but the timer is a nice feature. So far I am extremely happy with the product and it has hot water at our furthest sink within 5 seconds. Don't hesitate to buy this product.

### ⭐⭐⭐⭐⭐ The Only Review You Need To Read
*by D***K on July 14, 2015*

I happened upon the idea of hot water recirculating pumps while looking for a small on demand hot water heater for under my kitchen sink. My home is over 4,000 square feet and has 5 different levels plus a basement. Hot water is supplied via a single gas heater in my basement. The kitchen sink is actually the closest tap to the heater but with mine and my wife's schedule, we are actively using hot water at two different times of the day. My wife and I are both up at 5 am, I get ready for work while my wife works out. In prefer a shower at night so in the morning I'm only preparing my breakfast and packing a lunch. After preparing breakfast and lunch I'd rinse the dishes, the hot water would reach the tap just as I was finishing. I'm out the he door by 6 am at which time my wife is be jumping in the shower. She'd have to let the shower in the master bedroom run for a min or so to get hot. The master bath is above the kitchen. At night I hit the gym on the way home. I'm home around 6 at which point I'd clean up my dishes and make dinner or if my wife cooked I'd eat. My wife gets home from work around 5 pm. I'm in the shower between 8-9 pm and as the saying goes, rinse and repeat..... I've found that I'm constantly waiting for hot water. When my wife and I return home from work, we clean or rinse dishes etc and the water takes time to warm up. As we all know, once the pipes get hot, the subsequent use of hot water within 15-30 mins results in instant hot water. When I move upstairs to my master bath, the cycle repeats, the pipes leading to the shower have to heat up since the bathroom wasn't used since 6 am that morning. Solution, I purchased this unit and installed the valve on the guest bathroom which is on the same level as my master bath and happens to be the farthest from the hot water heater. I set the timer on the pump to run from 4am-10am and 4pm-10pm. I found that hot water wasn't instant at the kitchen or master bathroom but it only took 5 seconds or so for hot water. The guest bathroom has instant hot water at these times and the cold water from the sink comes out like warm for 20-30 seconds. Conclusion: the pump is honestly a no brainer. The only drawback is the sink with the valve won't have instant cold water, instead it will be luke warm for some time. The power consumption is minimal, any worry about cost of operation should first consider the cost of operating a TV or computer va this until which saves literally thousands of gallons of water. As far as energy consumed heating additional water, I would consider this; based on my hot usage, my pump turn on about 1 hr before my wife and I wake up and start using hot water. The hot water heater will trigger startup about 30-60 minutes after the pump Has started due to the drop in temperature caused by the pump slowly circulating hot water. Once we start using hot water, this of course adds to the demand on the hot water heater what I found is that the hot water heater doesn't start more often, it just runs for a longer period of time. This is a win win because the units waste most of the energy consumed (gas, oil or electric) during startup as the components get up to temperature. Think of it like this, how much has downs your car consume while driving down the highway? Cars are most efficient when traveling down the road in its highest hear at between 60-75 mph. Any faster and the wind resistance takes significantly more effort to overcome. Any slower and the vehicles motor is turning to slow to create enough power to maintain speed or a lower gear is needed which is less efficient. Your hot water heater about 10-20 minutes after startup is like your car cruising down the road as I explained. Now think about when your car is stopped and turned off. To get going your first have to turn the car on then start driving. While excelerating, your car is very inefficient but once up to speed, all is well and it's becomes efficient again. Setting up the timer to turn the pump when you normally use water will usually only extend the runtime of your hot water heater. This results in very little wasted energy but the water savings and impact on our environment from the saved water vs increased fuel consumption is dramatic. If you have a well and septic system as I do, this relieves close to 15% of water consumed from your well which in turn puts less stress on your septic as there is significantly less waste water. Lastly this pump includes one of the thermostatically controlled valves so don't bother purchasing a seperate one unless you have a home with a branched hot water line off the main line. In that case a second valve can be put on that line so you heve instant hot water from all taps.

## Frequently Bought Together

- Watts Hot Water Recirculation System with Programmable Timer for Tank Water Heaters, Instant Hot Water, 120V Pump, 10 ft Cord, 2 Adapters, Sensor Valve, Mounting Screws, 2 Supply Lines (0955800)
- Watts Premier Replacement Sensor Valve Kit for 500800, 500805, HWRS-WH Watts Instant Hot Water Recirculation System, Two 12" Supply Lines, Two Reduced Fittings 1/2" FTP - 3/8" MPT, Two Mounting Screws

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*Product available on Desertcart Austria*
*Store origin: AT*
*Last updated: 2026-11-12*