At a Glance
Rinnai Super High Efficiency Residential 50 Gallon Electric Heat Pump Water Heater with 3.75 UEF
Item #7504620 |
Model #REHP50
All electric water heating solution with the highest efficiency standards while reducing energy usage and costs
Title 24 compliant and IRA Tax Credit Eligible
Whisper Quiet Operation
Micro Channel Heat Exchanger Condenser to optimize the heat transfer and enhance energy savings
Demand Response Enabled
Zero Clearance Installation
Residential warranty: 10-year tank, 10-year on parts, 1-year on labor / Commercial Warranty: 1 year on tank, 1-year on parts
Need this water heater installed? Rinnai can help, simply call 1-84-GO-RINNAI
ENERGY STAR 5.0 Qualified with Uniform Energy Factor of 3.75
General | |||
|---|---|---|---|
Color/Finish Family | White | Use Location | Indoor |
Series Name | REHP Series | Display Type | Digital |
Type | Tank | Installation Type | Floor mount |
Power Source | Electric | Ignition Type | Electric |
Grade | Residential | ||
Dimensions | |||
|---|---|---|---|
Depth (Inches) | 21.7 | Rated Storage Capacity | 46-Gallon |
Diameter (Inches) | 21.7 | Water Connection Size | 3/4-in |
Family Size | 5 | Weight (lbs.) | 212 |
Height (Inches) | 66.81 | Width (Inches) | 21.7 |
Nominal Capacity (Gallons) | 50 | ||
Features | |||
|---|---|---|---|
Automatic Shut-Off | No | Scale Prevention | No |
GPH Recovery at 90 Degrees F (Gallons) | 27.5 | Super High Efficiency | Yes |
Grid Capable | No | Temperature and Pressure Relief Valve | Yes |
High Altitude Model | No | Uniform Energy Factor | 3.75 |
Hybrid Heat Pump Technology | Yes | Voice Controlled | No |
Leak Detection | Yes | Voltage | 240 |
Maximum Temperature (Fahrenheit) | 150 | Water Connection Location | Side |
Minimum Temperature (Fahrenheit) | 110 | Water Heater Style | Tall |
Point of Use | No | Wattage (Watts) | 5000 |
Compatibility | |||
|---|---|---|---|
App Compatibility | No | Works with Apple HomeKit | No |
Bluetooth Compatibility | No | Works with iOS | No |
Smart Compatible | No | Works with SmartThings | No |
Wi-Fi Compatibility | No | Works with the Google Assistant | No |
Works with Amazon Alexa | No | For Use with Mobile Homes | Yes |
Works with Android | No | For Use with RVs | No |
Warranty | |||
|---|---|---|---|
Warranty | 10-year limited | ||
Certifications | |||
|---|---|---|---|
CA Residents: Prop 65 Warning(s) | Safety Listing | UL safety listing | |
ENERGY STAR Certified | Yes | AHRI Certified | Yes |
Miscellaneous | |||
|---|---|---|---|
UNSPSC | 40101800 | ||
Check out the Best Selling Water Heaters on Lowes.com
Ratings may include incentivized customer reviews.
What Customers Are Saying
Customers overwhelmingly praise this heat pump water heater for exceptional efficiency and energy savings, with many reporting electric bill reductions of one-third or more. Reviewers consistently highlight quiet operation—comparing noise to a vibrating phone—reliable performance under heavy use, and precise temperature control within ±2°F. Installation is described as straightforward with intuitive programmable modes. A few mention the unit's considerable weight and lack of Wi-Fi connectivity, though these are framed as minor trade-offs. Overall, most customers consider the long-term financial payoff and dependable performance well worth the investment.
Customer review summary generated by AI, including incentivized reviews.Quiet with cooling bonus for garage
It was delivered on Friday and installed on Saturday Only issue compression fitting on install kit had to really be tightened a lot. The side outlet for the water was different from the original but nothing COVC couldn’t handle.
Verified Purchaser
Good water tank
Woks very well,
From Super High Efficiency Residential 80 Gallon Electric Heat Pump Water Heater with 4.0 UEF Verified Purchaser
Product good, Lowes CS - not so much. Do better!
This review is not about the product (since I have not yet installed it) but about Lowe’s handling of the order. The initially-ordered product was apparently damaged in shipping between the warehouse and the store. Instead of re-sending, or at a minimim contacting me with the issue to ask me how I would like to proceed, Lowe’s unilaterally cancelled the order, and put as a justification “not picked up”. When I contacted Lowes by phone, they said there is nothing they can do, and that if I want ...
Verified Purchaser
Heavy
Install easy. But is very heavy to get in place
From Super High Efficiency Residential 80 Gallon Electric Heat Pump Water Heater with 4.0 UEF Verified Purchaser
Heavy to move, no issues
This thing is absurdly heavy and top heavy specifically. Getting it moved anywhere is a chore, but worth it. Only been running it for a few days but no concerns so far. We'll see what happens when the temperature drops come fall.
From Super High Efficiency Residential 65 Gallon Electric Heat Pump Water Heater with 3.9 UEF Verified PurchaserIncentivized
Massive upgrade from a propane unit
Easy install, simple menu system, and high efficiency heater. I would highly recommend purchasing this system if you can afford paying up front for massive, long term electrical bill (or propane / natural gas) savings. It also has twice the capacity of our old water heater, which is great for baths. One thing I didn't realize would be so nice is the electronic temperature control, which is incredibly accurate and allows us to dial the water temp in to +/- 2°F, as opposed to the previous system t...
From Super High Efficiency Residential 80 Gallon Electric Heat Pump Water Heater with 4.0 UEF Verified PurchaserIncentivized
It pulls heat from my garage to heat the water.
The heat pump water heater was pricey, but the possible electric monthly cost shavings plus $500. cash back incentive from SRP helped make the decision easy. It sucks in the heat from my garage to help heat the water. In return the unit pushes ac cold air out.
Easy installation
Installation was pretty straightforward. I had a 50 gallon electric and replaced it with the Rinnai 80 gallon. Plenty of hot water. I was surprised how quickly it got over 100 degrees after turning it on the first time though I did turn on the heating element as well as heat pump. Been in Economy mode since and it's only kicked on the heat pump and we have never run out of hot water despite multiple showers a day and other hot water uses.
From Super High Efficiency Residential 80 Gallon Electric Heat Pump Water Heater with 4.0 UEF Verified PurchaserIncentivized
Quite happy
We’re very happy! Delivered 1 day early, heated up fast, looks great! Plumber installed it in under an hour.
From Super High Efficiency Residential 65 Gallon Electric Heat Pump Water Heater with 3.9 UEF Verified PurchaserIncentivized
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Hello David,
Thank you for taking the time to share your experience! We're pleased to hear your installation was completed successfully and...