Model # XE20S06ST38U0

Internet #204316658

Store SO SKU #1001020914

Rheem Performance 20 Gal. Short 6 Year 3800/3800-Watt Elements Electric Water Heater
0020352625287

Rheem

Performance 20 Gal. Short 6 Year 3800/3800-Watt Elements Electric Water Heater

  • Provides ample hot water for households with 1-2 people
  • Make sure it fits: measure your space to ensure dimensions fit
  • Same-day installation in most areas. Call 1-855-400-2552 by noon.
$346.88 /each

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Product Overview

The Rheem Performance 20 Gal. Electric short water heater provides an ample supply of hot water for households with 1 to 2 people. This unit comes with two 3800-Watt elements and an automatic thermostat which keeps the water at the desired temperature. A 240-Volt electrical connection is required for installation. A premium grade anode rod provides long-lasting tank protection. Factory installed temperature and pressure relief valve and 3/4 in. water connections are included with the water heater for easy installation. This model has a 6 year limited tank and parts warranty plus a 1 year in home labor warranty.

California residents: see   Proposition 65 information

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Name Performance 20 Gal. Short 6 Year 3800/3800-Watt Elements Electric Water Heater Performance 38 Gal. Short 6 Year 3800/3800-Watt Elements Electric Water Heater with Blanket Performance 30 Gal. Short 6 Year 4500/4500-Watt Elements Electric Water Heater with Blanket Performance 30 Gal. Short 6 Year 3800/3800-Watt Elements Electric Water Heater with Blanket
Brand Rheem Rheem Rheem Rheem
Ratings (582) (313) (329) (312)
Tank Capacity (gallons) 20 38 30 30
Product Height (in.) 31.5 31.5 30 30
Product Width (in.) 17 23 19.75 19.75
Part Warranty 6 Year 6 Year 6 Year 6 Year
Water Heater Profile Short Short Short Short
Wattage (watts) 3800 3800 4500 3800
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Customer Questions & Answers

19 Questions39 Answers

Customer Questions & Answers

Performance 20 Gal. Short 6 Year 3800/3800-Watt Elements Electric Water Heater
Performance 20 Gal. Short 6 Year 3800/3800-Watt Elements Electric Water Heater

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8 answers

What size circuit breaker is required?

This question is from Performance 20 Gal. Short 6 Year 3800/3800-Watt Elements Electric Water Heater
Asked by
dallas, tx
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September 6, 2015
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Answers (8)

Asked by
Oregon, USA
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Home Improvement Profile: Professional
October 18, 2016
Answer: 
3800 / 240 = 15.83a, so use a dual 20a breaker.
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Asked by
Cockeysville Md.
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Home Improvement Profile: DIYer
October 13, 2016
Answer: 
Water heaters almost universally are wired so that both elements NEVER come on at the
same time. So only one 3800 Watt element works at a time. The Bottom one cuts on for full tank' recovery. Under heavy use the bottom one cuts OFF and the top one cuts on for faster recovery during someone using a washing machine or filling a bath tub. So a maximum of 3800 watts requires a minimum of 20- amp breaker
Read More
Water heaters almost universally are wired so that both elements NEVER come on at the
same time. So only one 3800 Watt element works at a time. The Bottom one cuts on for full tank' recovery. Under heavy use the bottom one cuts OFF and the top one cuts on for faster recovery during someone using a washing machine or filling a bath tub. So a maximum of 3800 watts requires a minimum of 20- amp breaker and 12 gauge wire. Personally I would prefer a 25 or 30 AMP breaker and a 10 gauge wire for extra safety.
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Asked by
Jewett, TX
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Home Improvement Profile: DIYer
May 3, 2016
Answer: 
This unit has dual 3800 watt elements. By my calculation, that means 7600 W when both are in operation. This would require a 40 amp breaker since 7600 W / 240 V = 31.66 amps. You usually size up about 20%, so 32.66 x 1.2 = 37.99. You would need # 8 wire to carry this load. Now, this assumes that the heater elements could work simultaneously. If not, then 20 amps would work. Anybody know which is Read More
This unit has dual 3800 watt elements. By my calculation, that means 7600 W when both are in operation. This would require a 40 amp breaker since 7600 W / 240 V = 31.66 amps. You usually size up about 20%, so 32.66 x 1.2 = 37.99. You would need # 8 wire to carry this load. Now, this assumes that the heater elements could work simultaneously. If not, then 20 amps would work. Anybody know which is correct??? Read Less
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Asked by
Portland OR
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December 18, 2015
Answer: 
20 amp 2 pole 240 volts.
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Asked by
Portland OR
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December 18, 2015
Answer: 
16 amps is the most that can be safely used on a 20 amp branch circuit. 16 amps X 240 volts is 3,840 watts, so 20 amps is the minimum size, while #10 gauge and 30 amp breaker is the recommended size.
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Asked by
hallandale, FL
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November 1, 2015
Answer: 
I have 2 20-Amp breakers wired together to make 240 volts. I think that is still 20 AMPs.
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Asked by
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September 17, 2015
Answer: 
3800watts / 220 volts = 20ish Amps... I'd go with a 30A breaker
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Asked by
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September 10, 2015
Answer: 
If the unit in question is a 240V unit then it should require a 20 amp breaker.
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3 answers

Is there one or two heating elements on the 20 gallon Rheem water heater?

This question is from Performance 20 Gal. Short 6 Year 3800/3800-Watt Elements Electric Water Heater
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Odessa, TX
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February 27, 2016
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Asked by
Portland OR
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March 6, 2016
Answer: 
There are two heating elements, 3,800 watts each, and the upper thermostat will turn off the lower element when the upper element is cooler than the set point. Once the top of the tank is above the set point, the upper element will go off, and allow the lower element to run. Once the lower element is hot, then both will stay off until more cold water enters, cooling the lower element that will start Read More
There are two heating elements, 3,800 watts each, and the upper thermostat will turn off the lower element when the upper element is cooler than the set point. Once the top of the tank is above the set point, the upper element will go off, and allow the lower element to run. Once the lower element is hot, then both will stay off until more cold water enters, cooling the lower element that will start heating first.
So wattage is limited to 3,800 watts or about 16 amps at 240 volts. Read Less
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February 29, 2016
Answer: 
This unit has a single element.
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Asked by
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February 29, 2016
Answer: 
Yes, One upper and one lower heating element.
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3 answers

What is the recovery time

This question is from Performance 20 Gal. Short 6 Year 3800/3800-Watt Elements Electric Water Heater
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atlanta
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August 30, 2015
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Asked by
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January 13, 2016
Answer: 
All standard electric two element water heaters can recover up to 21 gallons to a 90 degree rise in a given hour. This rate depends on this incoming water temperature.
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Asked by
Portland OR
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December 18, 2015
Answer: 
3800 watts is about 13,000 Btu;s per hour, or around 13 gallons of water rise from 45F to 135F.
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September 17, 2015
Answer: 
forever
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3 answers

What are the dimensions

This question is from Performance 20 Gal. Short 6 Year 3800/3800-Watt Elements Electric Water Heater
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July 13, 2015
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Asked by
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November 9, 2015
Answer: 
The dimensions are Product Depth (in.) 17, Product Height (in.) 31.5, Product Width (in.) 17.
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Asked by
hallandale, FL
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November 1, 2015
Answer: 
It's actually about 34" tall because the water connections stick up. Also the relief valve sticks up.
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July 18, 2015
Answer: 
This product is 17 inches in diameter and 31.5 inches tall.
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Customer Reviews

Rated 4.6 out of 5 by 502 reviewers.
Rated 4.0 out of 5.0 by 20 gal water heater The water heater was what I was looking for but a bit high on price. October 12, 2016
Rated 4.0 out of 5.0 by Does the job Small water heater for apartment. One full bath (shower) and kitchen. Does the Job. Enjoying the efficiency compared to the old 60 gallon that was there. Ample hot water due to the dual element. September 13, 2016
Rated 5.0 out of 5.0 by Perfect Heats up quickly! Just 2 adults & this is the perfect size, economical, and perfect in every way July 19, 2016
Rated 5.0 out of 5.0 by Small size, easy to install, looks good, accurate temp I replaced an old 30 gallon short heater. It was too hot even with the temp set all the way down, and had some rust spots. This one is for a 1 bed 1 bath condo in Florida. The ground water is not too cold and the dual heat elements will keep me in hot water even with company. Be sure to set the thermostats on both heating elements. The light weight made it easy for me to position and move around. The connections are on top for ease in connecting, I used flex hoses on both lines. The electric was easy too, the wires from my wall are the same color but it doesn't matter as long as the green ground is known. I turned the power on and I had to put my ear on it to hear it heating up, it is so quiet. After 2 days I used a digital thermometer to check the temp, it was 98.4 and I had both thermostats set to about 100. So far I am very satisfied. I do have a complaint with Home Depot - the adapter that goes in the pressure relief valve is out of stock in the store and on line. I found one at a plumbing store online. It's not really needed unless the heater blows up. Note: in the pic you can see that I put caulk around the electric connection, in case a small leak ever develops (it won't). November 1, 2015
Rated 5.0 out of 5.0 by Hot Water Tank Installed in crawl space with 36" vertical space to bottom of floor joists. Two 3800 watt heating elements designed so that only one can be on at a time. Use 20 amp., 2 pole, 240 V circuit breaker, #12 AWG cable. Easy installation, no leaks, light weight and efficient. No blanket necessary. Provides adaquate service for two. May 14, 2016
Rated 5.0 out of 5.0 by JUST THE RIGHT SIZE. EASY TO INSTALL TO PRESENT PLUMBING, NICE AND QUIET,AND FIT INTO PRSENT LOCATION. May 12, 2016
Rated 5.0 out of 5.0 by Great little water heater. Heats water very quickly with two elements. Dimensions were accurate as specified. I needed to fit it into a tight space and I never mail ordered a water heater before. Very satisfied with my purchase. I'm thinking of putting one in my mobile home as well. Home Depot Customer Service was great with in-store pickup. April 12, 2016
Rated 3.0 out of 5.0 by fits in tight space; used as backup water heater to my tankless one Everything works as advertised but I had a problem with the two access plates you had to take off to adjust the thermostat. Three of the four screws were stripped out and I could not remove them. I had to cut through the screws with a cutoff blade tool. the thermostat dials are a little hard to see and adjust but they can be adjusted. March 29, 2016
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