Rheem Tankless Recirculation Pump Kit Review: Who It Fits and Who Should Skip It
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This rheem tankless recirculation pump kit review covers the Rheem RH17920. It is a timer-based pump designed to circulate hot water through your home’s pipes. The unit features a stainless steel casing and 3/4 inch FNPT fittings. These specs ensure durability and standard compatibility with your plumbing. The kit includes all necessary components for installation. You get a complete package with step-by-step instructions. The pump operates on a programmable timer. This allows you to set specific intervals for hot water delivery. The design eliminates the need for an external aqua stat or wall outlet plug. It simplifies the setup process for your tankless water heater system.
What stands out
- Stainless steel construction with 3/4 inch FNPT flange fittings
- Programmable timer for scheduled hot water circulation
- Built-in internal check valve removes need for external components
- Compatible with specific Rheem ECO and ECOH tankless models
- Energy saver mode reduces power consumption during idle periods
Who it fits
Good fit for
This kit suits homeowners with Rheem tankless water heaters who want instant hot water. It fits setups where you prefer scheduled circulation over continuous running. The timer-based control lets you align hot water availability with your daily routine. If you want to reduce water waste and wait time, this pump helps. The included components make it a straightforward addition. You get a durable unit that integrates easily with compatible Rheem models like the ECO200 or ECOH180. The stainless steel build offers long-lasting performance for your plumbing system.
Who should skip it
You should look at another option if your water heater is not a compatible Rheem model. The kit only works with specific ECO and ECOH series units. It also may not suit those who want on-demand circulation without scheduling. The timer-based control does not offer instant activation via a button or app. If you prefer manual control or smart home integration, this pump lacks those features. Additionally, the lack of an external aqua stat means you cannot use temperature-based triggering. Check your heater model first to ensure it fits the listed compatibility list.
Verdict: This pump is a practical choice for compatible Rheem tankless systems seeking scheduled hot water delivery. It offers a durable, timer-controlled solution that simplifies installation and reduces water waste.
Key specs for Rheem RH17920
Material: Stainless steel
The pump casing and fittings use stainless steel. This material resists corrosion and handles daily wear better than plastic or brass. You get a longer-lasting unit with less risk of rust. If you live in an area with hard water or high humidity, this build quality helps protect your investment. Compare this to cheaper kits that use plastic housings, which may crack over time.
Control Type: Timer
This model uses a programmable timer to control when the pump runs. You set specific times for hot water circulation instead of running it continuously. This saves energy by only pumping water when you need it. It is ideal for households with predictable schedules. If you prefer on-demand control without a smartphone app, this timer-based approach offers a simple, reliable way to manage your hot water supply efficiently.
Connection Size: 3/4 in. FNPT
The pump connects using 3/4 inch female national pipe thread fittings. This is a standard size for most residential plumbing lines. It ensures the unit fits directly into your existing pipe setup without needing adapters. Check your current plumbing size before buying. If your home uses 1/2 inch pipes, you will need to adjust your installation plan. This standard size makes it compatible with a wide range of home water systems.
Compatibility: Rheem tankless water heaters
This kit is designed specifically for select Rheem tankless models, such as the ECO150 and ECO200 series. It ensures proper communication and fit with these specific units. Using it with other brands may cause compatibility issues or void warranties. Verify your water heater model number against the list. This specificity guarantees that the pump works seamlessly with your existing Rheem tankless system for optimal performance.
Weight: 8.6 pounds
The unit weighs 8.6 pounds, making it manageable for installation. It is heavy enough to feel solid but light enough for one person to handle. You need a sturdy mounting location that can support this weight. Compare this to larger commercial pumps that require two people. This weight suggests a compact, residential-grade device that fits easily into standard utility spaces without needing reinforced brackets.
Design and Build Quality
The Rheem RH17920 pump features a stainless steel casing and 3/4 inch FNPT fittings. According to the listing, this durable construction resists corrosion and handles daily wear better than plastic or brass alternatives. You get a longer-lasting unit with less risk of rust. The grey finish is practical for utility spaces where aesthetics matter less than function. The internal check valve is built into the pump, removing the need for an external plug or aqua stat. This simplifies the layout and reduces potential leak points in your plumbing setup.
Size and weight are key factors for installation. The unit measures 7 inches wide, 9 inches long, and 7.88 inches high. It weighs 8.6 pounds. These dimensions allow it to fit in standard utility closets or mechanical rooms without requiring extensive modification. The compact footprint means you do not need a large dedicated space. The weight is manageable for one person to mount, though securing the 3/4 inch connections may require two hands.
Control type is timer-based. You program the pump to run at regular intervals. This means you do not need a dedicated control panel or smart home integration for basic operation. The design prioritizes straightforward functionality over complex features. You get immediate hot water circulation without extra wiring or sensors. This makes it suitable for homes where simplicity and reliability are more important than advanced monitoring capabilities.
Setup and everyday use guide
The Rheem RH17920 kit includes all necessary components for installation. The package provides step-by-step instructions to help you complete the setup. The design simplifies the process by featuring an internal check valve. This means you do not need to install an external aqua stat. The pump also does not require an external plug for the wall outlet. These features reduce the number of parts you must manage during installation. The unit connects via 3/4 inch FNPT fittings. This standard connection size ensures it fits most common plumbing configurations. You must verify compatibility with your specific water heater. The kit works with Rheem models including the ECO200, ECO180, ECO150, ECOH200, ECOH180, and ECOH160 series. Daily operation relies on a programmable timer. You can set the pump to run at regular intervals. This timer-based control keeps hot water circulating through your home’s pipes. The built-in energy saver mode reduces power consumption. This feature helps lower energy costs while maintaining hot water availability. You get immediate hot water delivery when you turn on a faucet. The recirculation system eliminates the wait time for hot water to reach your sink. This reduces water waste during the initial warm-up period. The pump measures 9 inches in length, 7 inches in width, and 7.88 inches in height. It weighs 8.6 pounds. The grey stainless steel casing provides a durable build for everyday use. The timer settings allow you to customize when the pump activates. This ensures the system runs only when you need hot water.
Before You Buy This Pump
Before adding this pump to your tankless system, verify compatibility. The listing specifies it works with specific Rheem ECO and ECOH models. If your heater is not on that list, this kit will not fit. You must check your unit’s model number against the provided compatible list. This pump is timer-based, so you will use it to schedule hot water delivery. You do not need an external plug or aqua stat, which simplifies the setup. The internal check valve handles backflow prevention. You should still ensure your plumbing connections match the 3/4 inch FNPT size. Routine maintenance is minimal due to the stainless steel construction. This material resists corrosion better than plastic. However, you should still inspect the fittings annually. This kit fits best if you want instant hot water without complex controls. It pairs well with compatible Rheem units to reduce water waste. Other recirculation options may offer different control types, but this timer-based design offers a straightforward solution for standard homes.
Check before you buy
- Verify your Rheem heater model matches the compatible list.
- Confirm your plumbing uses 3/4 inch FNPT connections.
- Check if a timer-based schedule fits your hot water needs.
- Ensure you have space for the 9 by 7.88 inch unit.
The product at a glance
Rheem Stainless Steel Tankless Recirculation Pump
Best for: Rheem tankless owners seeking instant hot water
- Compatibility
- Tankless
- Connection Size
- 3/4 in. FNPT
- Material
- Stainless steel
- Control Type
- Timer
- Dimensions
- 6 × 3 × 3 inches
- Weight
- 8.6 pounds
View on Amazon: Rheem Stainless Steel Tankless Recirculation Pump Affiliate link
This Rheem pump kit delivers instant hot water by circulating it through your pipes. It features a durable stainless steel casing and 3/4 in. FNPT fittings. The timer-based control lets you program run intervals, while the energy saver mode reduces power consumption. It includes an internal check valve for simplified installation. This kit is designed specifically for compatibility with select Rheem tankless water heaters.
Pros
- Stainless steel construction for durability
- Timer-based programmable operation
- Built-in energy saver mode
- Internal check valve simplifies setup
- Complete installation package included
Cons
- Limited to specific Rheem tankless models
- No smart app or remote control
- Lacks temperature adjustment settings
Good fit if
- You own a compatible Rheem tankless water heater
- You want to reduce hot water wait times
- You prefer simple timer-based scheduling
Skip if
- You have a non-Rheem tankless water heater
- You need precise temperature control
- You want smartphone app integration
Verdict: Rheem Tankless Recirculation Pump Kit fits homeowners with compatible Rheem units who want to eliminate wait times. It offers a practical, durable solution for instant hot water delivery.
Specifications side by side
| Spec | Rheem Stainless Steel Tankless Recirculation Pump |
|---|---|
| Compatibility | Tankless |
| Connection Size | 3/4 in. FNPT |
| Material | Stainless steel |
| Control Type | Timer |
| Features | Timer |
| Dimensions | 6 × 3 × 3 inches |
| Weight | 8.6 pounds |
| Color | Grey |
| Model | RH17920 |
Frequently asked questions
Does this pump work with non-Rheem tankless water heaters?
No, this kit is designed specifically for Rheem units. The listing specifies compatibility with certain ECO and ECOH models only. If your heater is not a Rheem unit, this pump will not fit your system. You must verify your specific model number against the manufacturer’s list before purchasing to ensure proper operation.
How does the timer feature control hot water delivery?
The pump uses a built-in timer to circulate water at set intervals. This ensures hot water is ready when you need it without running continuously. You can schedule these cycles to match your daily routine, which helps reduce energy usage while maintaining comfort. The timer is the primary control mechanism for the unit.
What are the physical dimensions of the Rheem recirculation pump?
The unit measures 9 inches in length, 7 inches in width, and 7.88 inches in height. It weighs 8.6 pounds and features a grey finish. These compact dimensions allow it to fit into standard utility spaces. The stainless steel casing provides a durable exterior that resists corrosion and daily wear.
Is an external check valve required for installation?
No, you do not need to install an external check valve. The pump kit includes an internal check valve as part of its design. This simplifies the setup process by handling backflow prevention internally. You only need to connect the standard 3/4 inch FNPT fittings to your existing plumbing lines.
What material is used for the pump casing and fittings?
The casing and fittings are made from stainless steel. This material choice offers superior resistance to corrosion compared to plastic or brass alternatives. It ensures the unit can handle daily wear and tear in a plumbing environment. The stainless steel construction contributes to the overall durability and longevity of the pump system.
Who is the ideal user for this recirculation kit?
This kit fits homeowners with compatible Rheem tankless heaters who want instant hot water. It is ideal for those seeking to eliminate wait times at the tap. The durable stainless steel build and timer functionality provide a practical solution for consistent water delivery. It is not suitable for non-Rheem units or those without a recirculation loop.