Brand Comparison
Top Water Heater Brands: Pricing with Real Model Numbers
The four major brands account for over 80% of residential water heater sales in the US. Here is a detailed comparison with specific models, part numbers, and 2026 retail pricing.Last verified April 2026
Rheem
Est. 1925Atlanta, GA
One of America's largest water heater manufacturers. Known for reliable mid-range units with strong warranty coverage. Available at Home Depot exclusively for residential models.
| Model | Type | Capacity | Price | Efficiency | Warranty |
|---|---|---|---|---|---|
Rheem Performance Plus 50-Gal Gas #XG50T09HE40U0 | Tank Gas | 50 gal | $750 - $900 | 0.65 UEF | 9-year tank, 9-year parts |
Rheem Performance Platinum 50-Gal Electric #XE50T10HD50U1 | Tank Electric | 50 gal | $600 - $750 | 0.93 UEF | 10-year tank, 10-year parts |
Rheem ProTerra Hybrid 50-Gal #? | Heat Pump | 50 gal | $1,500 - $2,000 | 3.75 UEF | 10-year tank, 10-year parts |
Rheem RTGH-95DVLN Tankless #RTGH-95DVLN | Tankless Gas | 9.5 GPM | $1,200 - $1,500 | 0.94 UEF | 12-year heat exchanger, 5-year parts |
A.O. Smith
Est. 1874Milwaukee, WI
Premium manufacturer with 150+ years of expertise. Known for high-efficiency models and excellent build quality. Available through plumbing supply houses and Lowe's.
| Model | Type | Capacity | Price | Efficiency | Warranty |
|---|---|---|---|---|---|
A.O. Smith Signature 100 50-Gal Gas #G6-UT5050NVR | Tank Gas | 50 gal | $700 - $850 | 0.60 UEF | 6-year tank, 6-year parts |
A.O. Smith Signature Premier 50-Gal Electric #E6-50H45DV | Tank Electric | 50 gal | $550 - $700 | 0.95 UEF | 6-year tank, 6-year parts |
A.O. Smith Voltex AL Hybrid 50-Gal #HP10-50H45DV | Heat Pump | 50 gal | $1,600 - $2,100 | 3.45 UEF | 10-year tank, 10-year parts |
A.O. Smith ATI-540H-N Tankless #ATI-540H-N | Tankless Gas | 10.0 GPM | $1,400 - $1,800 | 0.95 UEF | 15-year heat exchanger, 5-year parts |
Bradford White
Est. 1881Ambler, PA
Professional-grade manufacturer sold exclusively through licensed plumbers. Consistently rated top-tier by contractors for reliability and build quality.
| Model | Type | Capacity | Price | Efficiency | Warranty |
|---|---|---|---|---|---|
Bradford White RG250T6N 50-Gal Gas #RG250T6N | Tank Gas | 50 gal | $850 - $1,100 | 0.63 UEF | 6-year tank, 6-year parts |
Bradford White RE350T6 50-Gal Electric #RE350T6 | Tank Electric | 50 gal | $650 - $850 | 0.93 UEF | 6-year tank, 6-year parts |
Bradford White AeroTherm? #RE2H50R10B | Heat Pump | 50 gal | $1,800 - $2,300 | 3.42 UEF | 10-year tank, 10-year parts |
Rinnai
Est. 1920Nagoya, Japan (US HQ: Peachtree City, GA)
Global leader in tankless water heater technology. Premium Japanese engineering with industry-leading efficiency ratings and the longest warranties in the category.
| Model | Type | Capacity | Price | Efficiency | Warranty |
|---|---|---|---|---|---|
Rinnai V75iN Indoor Tankless #V75iN | Tankless Gas | 7.5 GPM | $900 - $1,200 | 0.82 UEF | 12-year heat exchanger, 5-year parts |
Rinnai RU199iN Sensei Tankless #RU199iN | Tankless Gas | 11.0 GPM | $1,800 - $2,200 | 0.96 UEF | 12-year heat exchanger, 5-year parts |
Rinnai RSC199iN Condensing Tankless #RSC199iN | Tankless Gas | 11.0 GPM | $2,000 - $2,500 | 0.93 UEF | 12-year heat exchanger, 5-year parts |
Rinnai RE180iN Electric Tankless #RE180iN | Tankless Electric | 7.0 GPM | $600 - $900 | 0.99 UEF | 5-year heat exchanger, 1-year parts |
Brand Comparison At a Glance
| Brand | Best For | Price Range | Availability |
|---|---|---|---|
| Rheem | Best value, widest retail availability | $600 - $2,000 | Home Depot |
| A.O. Smith | Premium quality, longest company history | $550 - $2,100 | Lowe's + Supply houses |
| Bradford White | Professional-grade, contractor favorite | $650 - $2,300 | Licensed plumbers only |
| Rinnai | Best tankless, Japanese engineering | $600 - $2,500 | Supply houses + Online |
FAQ
Water Heater Brand Questions
What is the best water heater brand for reliability?
Bradford White is consistently rated highest for reliability by professional plumbers. Their units are sold exclusively through licensed contractors, ensuring proper installation. Rheem and A.O. Smith are also highly reliable and more widely available at retail stores.
Which water heater brand has the best warranty?
Rinnai offers the best tankless warranty at 12 years on the heat exchanger. For tank models, Rheem's Performance Platinum line offers 10-year coverage on both tank and parts. A.O. Smith's Signature Premier line also offers 10-year coverage.
Is Rinnai better than Rheem for tankless water heaters?
Rinnai is generally considered the premium option for tankless, offering higher GPM ratings (up to 11.0 GPM) and Japanese engineering. Rheem is a strong value alternative with competitive pricing and good availability through Home Depot. Both are excellent choices.