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Ships within 48 hours · Estimated delivery Aug 5 - Aug 10
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For Your Every Summer RSVP, with Code: SUMMER15
Description
Performance 40 Gal. Tall 6 Year 38,000 BTU Ultra Low NOx (ULN) Natural Gas Tank Water HeaterThe Rheem Performance 40 Gal. Natural Gas Ultra Low NOx Water Heater does not require an electrical outlet and features push button ignition for match free start up, making it a perfect for replacement of an existing water heater. Provides ample amount of hot water for households with 2 to 4 people. Plus, it includes a 1 year in home labor warranty in addition to a 6 year tank and parts warranty. Enjoy peace of mind with a reliable hot water solution
The Rheem Performance 40 Gal. Natural Gas Ultra-Low NOx Water Heater does not require an electrical outlet and features push-button ignition for match-free start up, making it a perfect for replacement of an existing water heater. Provides ample amount of hot water for households with 2 to 4 people. Plus, it includes a 1-year in-home labor warranty in addition to a 6-year tank and parts warranty. Enjoy peace-of-mind with a reliable hot water solution from Rheem. installation.- California residents
- California & Utah Residents: this water heater model meets or exceeds Ultra-Low NOX (ULN) emissions requirements for all air quality management districts
- Perfect for replacement: features a self-powered gas valve so an electrical outlet is not required and push button ignition for match-free start up
- Reliable hot water: delivers 71 gallons of hot water in the first hour making it ideal for households with 2-4 people or homes with 2 bathrooms
- Easy to maintain: filter and maintenance-free safety system
- Peace-of-mind: backed by a 6-year tank and parts warranty plus a 1-year in-home labor warranty
- Easy to choose a reliable hot water solution from Rheem, the global leader in water heating, which will be the perfect fit for your family, here are a few things to look for while making your decision
- Durability
- Savings and efficiency
- Features for simplicity
- Enough hot water
- Added features
- Rated for installations up to 5,999 ft.
- Call 1-855-400-2552 before noon for same-day installation service in most areas, or
- Meets 2015 NAECA standards
- California Residents - See if your county requires water heaters that meet Air Quality Management District Ultra low NOx (ULN) requirements:
Features
| Item Weight | 118 |
| Nominal Tank Capacity (gallons) | 40 |
| Maximum Temperature (F) | 160 |
| Efficiency Level | High |
| Gas Type | Natural Gas |
| Returnable | 90-Day |
| Product Weight (lb.) | 118 lb |
| Tank Lining Material | Glass |
| Water Heater Features | Overheat Protection,Pilot Light Window,Pilot Reset Button,Temperature Pressure Relief Valve,Ultra LoNox |
| Recovery Rate at 90F Rise (gallons/hour) | 38.4 |
| Uniform Energy Factor | 0.58 |
| Household Size | 2-4 |
| Wattage (watts) | 0 |
| Tank Warranty | 6 Year |
| Rated Tank Capacity (gallons) | 38 |
| Water Heater Profile | Tall |
| Finish Family | Gray |
| Indoor/Outdoor | Indoor |
| Fuel Type | Gas |
| Application Type | Residential |
| Commercial/Residential | Residential |
| Pack Size | 1 |
| Vent Type | Atmospheric |
| BTU Rating | 38,000 |
| Minimum Temperature (F) | 45 |
| Water Connection Size (in.) | .75 |
| Product Width (in.) | 19 in |
| Tank Valve Size (in.) | .75 |
| Product Height (in.) | 58.5 in |
| Product Depth (in.) | 19 in |
| Part Warranty | 6 Year |
| Labor Warranty | 1 Year |
| Certifications and Listings | CSA Certified,FVIR Certified |
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
4.8 ★★★★★
Based on 6 reviews
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Product Reviews
★★★★★ 5
Comfortable
Size: 6-10, Color: Halo Gray/Assorted
These are my favorite socks!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on September 22, 2025
★★★★★ 5
Great sock liners
Size: Medium, Color: (001) Black / Black / Pitch Gray
Awesome socks. Has little gel pad on top of heel for no slip. Thin and comfortable. Previously Purchased at Nordstrom rack and no longer in stock. Happy to find here
Note: Will shrink a little best to air dry
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 16, 2026
★★★★★ 5
Very good product
Size: Medium, Color: (001) Black / Black / Pitch Gray
I purchased these to wear inside lowcut slip on casual shoes, I don't particularly like to not wear socks in my shoes for hygienic reasons. Prior to purchasing these socks, all I could find were those made of very light beige hosiery type material , and my slip on shoes would slide around a bit. These are light weight and breathable athletic type material, with a very good gripper strip at the heel. One pair of my slip on casual shoes have a particularly lower cut in the toe area, but the shoe is black and I chose the black color and though I see a hint of the sock there, it matches and does not detract from the look of the casual solid black shoe
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 15, 2026
★★★★★ 5
They stay out! No more sock wads!
Size: Medium, Color: (100) White / White / Mod Gray
Best no show socks ever made!!!!! I've been struggling for 2 years to find ones that actually stay on your foot, even other national brands, and I just became content wearing my sneakers without socks. They ALWAYS slid down into my show & I ended up walking on a wad of sock until I could fix it...or usually just took them off after a couple of tries. Enter Under Armor!!! They a mid weight, but not very thick & still breathable. They work too by actually staying on your foot! Not once have they slid down into my show!! Very comfortable but they could be a little more affordable.
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Reviewed in the United States on August 1, 2025
★★★★★ 5
Love!
Size: Large, Color: (100) White / White / Mod Gray
Ive tried so many no show socks but I love these. This is the 3rd set I've bought. They never slip off and the material is thin and breathable. Perfect for working out.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 2, 2026
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