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Rheem EcoSense

Model # ECORHE50

Internet # 203856743

High Efficiency Power Direct Vent 48 Gal. Tall 6 Year 40,000 BTU Natural Gas Water Heater

This item has been discontinued.
The Home Depot no longer carries this specific product.

$1,905.19 /each

  • Provides ample hot water for households with 3-5 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.




Model # ECORHE50

Internet # 203856743

Store SO SKU # 1000489085

High Efficiency 48 Gal. condensing power direct vent induced draft Natural gas water heater is a perfect choice when indoor air quality is a concern. 0.82 energy factor exceeds current Energy Star requirements. Provides up to 93 Gal. of hot water in the first hour. Flexible venting options using 2 or 3 in. diameter PVC, ABS, or CPVC vent pipes. Unit can be vented with either a vertical or horizontal vent termination. Durable silicon nitride hot surface igniter eliminates the need for a standing pilot. High altitude compliant up to 9,000 ft. above sea level. 6 year tank and parts limited warranty.

  • California Residents:  Due to requirements from Air Quality Management Districts in the state of California, please use the map below to confirm whether you live in an area that requires the purchase of Ultra Low NOx water heaters.
  • 48 Gal. high efficiency condensing power direct vent with induced draft provides an ample supply of hot water to meet most home owners needs
  • 6 year tank and parts limited warranty
  • Energy factor of 0.82 exceeds ENERGY STAR requirements
  • Flammable vapor detection system disables the heater in the presence of flammable vapors
  • Flexible longer venting options available using 2 or 3 in. PVC, ABS or CPVC pipe
  • High altitude compliant up to 9,000 ft. above sea level
  • Dual anode rods protect the tank from corrosion
  • Designed for easy replacement of your existing water heater
  • Call 888-988-9935 before noon for same-day service in most areas, or visit our Water Heater Installation page for more information.
  • Meets new 2015 NAECA Standards

    NAECA Standards

  • California Residents - See if your county requires water heaters that meet Air Quality Management District Ultra Low NOx (ULN) requirements:

    Ultra Low NOx Requirements

Info & Guides

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Product Depth (in.) 
Product Height (in.) 
Product Width (in.) 
Tank Valve Size (in.) 
Vent diameter (in.) 
Water Connection Size (in.) 
Application Type 
Automatic Shut-off 
Estimated Yearly Operating Cost ($) 
Finish Family 
Fuel Type 
Gas Connection Size 
Gas Type 
Natural Gas 
Maximum Temperature (F) 
Minimum Temperature (F) 
Product Weight (lb.) 
250 lb 
Recovery Rate at 90F Rise (gallons/hour) 
Tank Capacity (gallons) 
Total BTU 
40000 Btu 
Vent Type 
Single Wall 
Water Connection Location 
Water Heater Features 
LoNox,Overheat Protection,Temperature Pressure Relief Valve 
Water Heater Profile 
Warranty / Certifications
Certifications and Listings 
CSA Listed,FVIR Certified 
ENERGY STAR Certified 
Labor Warranty 
No Warranty 
Part Warranty 
6 Year 


Rated 4.2 out of 5 by 5 reviewers.
Rated 5.0 out of 5.0 by Efficient and works great Very pleased with my purchase so far. The price tag is high at first but I think it will make up for it in efficency. I was curious how much the blower would effect my electric bill so I put my Killowatt meter on it and I was happily surprised. With 1 hot shower a day, 2 loads of laundry a week, and 2 loads of dishes it costs ~40 cents/month. I'm eager to see if there is a significant drop in my gas bill next month. I have the heat set to two settings above vacation mode, which should be ~120F, and it is still scorching hot. I have not heard the unit run unless I am actively using the hot water as well. Directions for installation were simple and easy to understand. October 31, 2014
Rated 5.0 out of 5.0 by Lots of hot water, and fast. Bought this from Home Depot's website (not stocked in any local stores), but had a different contractor install it, since the one HD uses wanted to charge me more for the install (which involved relocating the new unit about 3 feet away from the original) than the unit cost. I saved about $800 by using a different installer and buying most of the parts they needed. It took 2 guys about 5 hours to get the plumbing moved and hooked up, and to get the venting run out the side of the house. Keep in mind that this unit needs either a concentric termination kit, which makes a 5-1/2 inch hole in your roof or wall, or two separate 2- or 3-inch vent pipes. I already had one 3-inch vent from the original water heater, so I ended up running another alongside it. This unit was an upgrade from a standard 40-gallon unit. Once it was fired up, I had hot water within 45 minutes. The exhaust fan is very quiet. Since the combustion air is drawn from outside, and there is no pilot, there is virtually no chance of a CO leak. The heater is very energy efficient; it has an energy efficiency rating equal to that of many tankless units. I am very happy with this water heater, and look forward to lower gas bills every month. December 7, 2013
Rated 1.0 out of 5.0 by The maintenance on this one will cost you! This water comes with a flammable vapor sensor, which, in concept is great, but in practice, everything triggers it (ie, cat litter, dust, humidity, wind, the furnace). Once the flammable vapor sensor detects anything, it goes into factory lockout and requires a new motherboard, sensor and valve. We have replaced all three, three times now. One week old. The warranty does NOT cover the labor to replace these parts. After three sets of parts, Rheem refuses to send more. Additionally, a licensed plumber invalidates their warranty (see the fine print). They have to be a Rheem factory certified plumber, none exist in our 2 million population city. Google this vapor sensor and see for yourself. We got one customer service agent to admit that Rheem has a big problem with this model. Rheem won't stand behind their product. You can't beat the efficiency of cold showers! April 1, 2015
Rated 5.0 out of 5.0 by Actually special ordered RHE50P (LP version) Installation cost including adding an expansion tank and metal base pan was 600.00. (Westminster, MD). We are only in the first week but for a power vent his is dead quiet compared to my older State Select. Bought over a tankless as contractor said they were not yet ready for prime time and not what many expected as far as "low maintenance". He also said better value and more reliable than AO Smith Vertex. One opinion of course but I thought I would share. June 23, 2015
Rated 5.0 out of 5.0 by Excellent high efficiency water heater I installed this water heater about a month ago and it's been great so far. I'm an advanced DIYer and I found the installation to be relatively straight forward (read the install instructions first though). It heats water well and has been efficient so far. I used the Rheem SP20286 external vent kit when I put the exhaust and intake lines out. Also be sure to have a place for the condensate can drain to --I have a floor drain that's conveniently close to the water heater. Overall I'm very happy with this product and glad I installed it myself. November 6, 2014
  • 2015-10-07T09:20:25.653-05:00
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