Is the Ruud PROE47 S2 RU95 right for your installation?
The Ruud PROE47 S2 RU95 is the largest nominal-capacity short model in this Standard Electric table. It lists 47 gallons nominal, 43 gallons rated storage, a 54-gallon first-hour rating and 0.93 UEF. The tank body is 32 inches high by 26¼ inches in diameter, with water connections at 34 inches.
This is a wide lowboy, so its main advantage is lower height rather than a small footprint. WHE compares it with the medium 50 when a homeowner needs substantial stored reserve. The choice depends on whether headroom or floor width is the more difficult constraint at the existing installation.
Image note: Ruud supplies one tall-tank photograph for this family. It is a representative manufacturer image; this short model has different proportions. Use the dimensions above to judge fit.
Ruud PROE47 S2 RU95 specifications
| Exact model | PROE47 S2 RU95 |
|---|---|
| Manufacturer classification | Short electric storage tank; indoor installation |
| Nominal capacity | 47 gallons |
| Rated storage | 43 gallons |
| First-hour rating | 54 gallons |
| Uniform Energy Factor (UEF) | 0.93 |
| Standard supply / elements | 240V AC, single phase; two 4,500W elements, non-simultaneous operation |
| Recovery at a 90°F temperature rise | 21 gallons per hour with the standard 4,500W configuration |
| A — tank body height | 32 inches |
| B — height to water connections | 34 inches |
| C — tank diameter | 26¼ inches |
| Water connections | Top; ¾-inch NPT, shown on 8-inch centers in the series drawing |
| Required supplied external blanket | No required-blanket footnote on this model’s specification row |
| Approximate shipping weight | 149 lb; not the filled operating weight |
| Base limited warranty | Six years tank and parts for eligible single-family residential use; written terms apply |
Rated storage, first-hour delivery and UEF measure different things. They do not by themselves establish a number of showers or a household’s energy bill.
Dimensions, connections and replacement fit
The 26¼-inch body needs a suitably sized pan and a clear access route. A closet may have adequate internal width yet a door opening that prevents delivery. Plan for future service at the front panels and drain valve, and check the support for the filled tank rather than relying on its approximate 149-pound shipping weight.
Ruud does not attach a required external-blanket footnote to this model’s row. Do not add another model’s blanket dimensions or assume an optional accessory is included. The exact supplied equipment and instructions govern the finished installation.
WHE checks the full delivery route, supporting surface, drain pan, nearby pipes and access to the front panels, drain valve and anode. The tank dimensions are not minimum installation clearances. We also review water pressure, thermal expansion and temperature-and-pressure relief discharge as part of the scope.
Compare nearby Ruud models
| Model | Nominal / rated gallons | First-hour gallons | Body height × diameter |
|---|---|---|---|
| PROE47 S2 RU95 (short) | 47 / 43 | 54 | 32 × 26¼ in. |
| PROE38 S2 RU95 B (short) | 38 / 35 | 51 | 31½ × 23 in. before blanket |
| PROE50 M2 RU95 (medium) | 50 / 45 | 62 | 48 × 23 in. |
The 38 B has 35 gallons rated storage and a 51-gallon first-hour rating; this 47 adds eight gallons of rated storage and three gallons of first-hour delivery. The 38 B’s required blanket brings its calculated diameter to about 27 inches, slightly wider than this 47. The medium 50 raises the body to 48 inches but reduces diameter to 23 inches, with 45 gallons rated storage and a 62-gallon first-hour rating. It can be the better fit where width is limited and additional height is available.
WHE sizes around peak use, including shower flow, tub volume and overlapping appliances. These standard configurations share 21 GPH recovery at a 90°F rise; a larger tank does not automatically reheat faster.
Electrical configuration and installation planning
Standard power is 240V AC, single phase, with two 4,500W elements operating one at a time. Ruud notes special-order electrical options; the ratings here are for the standard configuration.
WHE checks the delivered nameplate and wiring diagram against the available circuit. These conventional tanks have no combustion flue or heat-pump condensate system. If considering relocation from an attic to a garage, send photos of both locations for an estimate.
Maintenance and warranty
The series sheet lists stainless steel elements, an anode, Ruudglas tank lining, an EverKleen diffuser and a brass drain valve. Follow the supplied manual for sediment maintenance and anode inspection; the diffuser does not make the heater maintenance-free.
The linked AP16826-2 certificate (September 2014) provides six-year limited tank and parts coverage for eligible single-family use by the original owner, and lists one year for other locations. Labor, removal and reinstallation are excluded. Confirm the supplied certificate and retain your records. ProtectionPlus is a separate extension.
Manufacturer documentation and product-image notes
The specifications above come from Ruud’s May 2024 PROE RU N Rev. 16 specification sheet, linked from its Professional Achiever Standard Electric family page. Sources checked October 17, 2026.
The webpage’s model table uses the older Energy Factor label and shows 0.95 on many rows. EF and UEF are different measures; this guide uses the linked sheet’s model-specific UEF values. The webpage also describes a copper upper element while the sheet says stainless steel upper and lower elements. The sheet is the basis here, with the supplied nameplate and parts documentation checked for the actual heater.
Ruud also links the general AP9029-12 use-and-care manual (January 2015) and six-year limited warranty certificate. Use these references alongside the exact instructions delivered with the unit. A family photo or optional feature mentioned elsewhere on the page does not establish an included accessory.
Local installation help
Water Heating Experts helps homeowners in Palm Beach Gardens, Jupiter and nearby Palm Beach County communities compare fit and hot-water demand. Send photos of the existing label, full installation and surrounding space. Start with our Ruud installation page, review our electric water heater service, or compare the full model catalog. Availability and the complete installation price are confirmed with your estimate.
Ruud PROE47 S2 RU95 FAQs
How much water does the PROE47 S2 RU95 store?
It is a 47-gallon nominal model with 43 gallons of rated storage. The 54-gallon first-hour rating measures delivery during a standardized hour, including newly heated water; it is not the amount stored at once.
Is this the same size as a 50-gallon medium tank?
No. This short model has 43 gallons rated storage and a 32 × 26¼-inch body. The medium 50 has 45 gallons rated storage and a 48 × 23-inch body. Their first-hour ratings are 54 and 62 gallons respectively.
Do both 4,500W elements run at the same time?
Not in Ruud’s standard configuration. The sheet specifies non-simultaneous operation, meaning the controls operate one element at a time. This is not a standard 9,000W simultaneous heater. WHE verifies the nameplate and circuit before installation.
Does the series name guarantee smart controls or automatic leak shutoff?
No. The documents used for this guide do not establish Wi-Fi or automatic leak shutoff as included features of this exact standard model. The webpage mentions System Sentinel only for selected configurations; it is not assumed included here.
Does the six-year warranty include labor?
No. Ruud’s linked certificate excludes labor, removal and reinstallation costs. The six-year tank and parts term is for eligible single-family use; the certificate sets different terms for other installations. ProtectionPlus is a separate extension, not the base warranty.