Neither brand is universally "better," as both are top-tier manufacturers. The right choice depends on your specific needs: A.O. Smith is typically preferred for raw, long-term tank durability and a commercial-grade feel, while Rheem leads in energy efficiency (especially in hybrids) and smart home integration.
When searching for the most reliable water heater, professional plumbers consistently recommend A.O. Smith, Bradford White, and Rheem. For long-term tank durability and a "set-it-and-forget-it" experience, A.O. Smith and Bradford White are top choices. If you prioritize high-tech smart features and energy efficiency, Rheem is a market leader.
A.O. Smith and Rheem are the two leading water heater brands in the US. Choose A.O. Smith if you value commercial-grade durability, robust metal construction, and traditional, "set it and forget it" reliability. Choose Rheem if you prioritize top-tier energy efficiency, smart home integration, and quiet hybrid models.
Forbes Ranks Rheem the No. 1 Air Conditioning Brand. Quiet operation, price and excellent customer service earned Rheem top marks as the number 1 air conditioning brand.
There are several reasons why your Rheem water heater may stop producing hot water, including a malfunctioning thermostat, sediment buildup, or issues with the heating elements. If you're not getting hot water, it's advisable to consult with a plumbing expert who can diagnose and fix the problem effectively.
If you're looking into purchasing a Rheem Hot Water System, you can expect its average lifespan to be anywhere between 5-15 years. The main factor that will influence your Rheem's lifespan is how well you maintain and upkeep your system.
Are Rheem HVAC systems reliable? Yes, Rheem systems are known for their solid construction, energy efficiency, and affordability. They're a dependable choice for homeowners who want consistent comfort without the higher cost of premium models.
Yes, Rheem is an American company headquartered in Atlanta, Georgia, and manufactures a significant portion of its HVAC and water heating products in the U.S. However, as a global brand, it also operates manufacturing facilities internationally, including in Mexico.
When choosing a furnace, the best brand depends on what you prioritize: reliability, high-end efficiency, or budget-friendly value. Based on industry consensus and consumer ratings, the top three furnace brands are Carrier, Trane, and Lennox.
No, Goodman and Rheem are completely separate companies and brands with distinct manufacturers, designs, and corporate ownership:
Common problems include insufficient hot water from faulty heating elements, leaks from loose connections, strange noises from sediment buildup, and rust-colored water. While DIY repairs work for simple tasks like replacing anode rods or flushing tanks, professionals ensure proper tools, safety, and faster repairs.
The best A.O. Smith water heaters depend on your fuel type and household size. For tankless, the Signature Series Super High Efficiency Gas Tankless is the top choice. For electric, the ProLine ENT40 or the Signature 500 50-gallon tanks stand out for reliability and built-in smart features.
Water heater manufacturer A.O. Smith Corp. on Monday was hit with a proposed class action in Wisconsin federal court alleging that its home water heaters have defective plastic valves that can suddenly leak and flood basements, ruin floors, and cause expensive repairs.
There isn't a single "number 1" model, as the ideal water heater depends on your home's setup, but top-rated brands dominating the market include Rheem (best overall tank/tankless) and A.O. Smith (best for durability and commercial-grade units).
Tankless water heaters are the longest-lasting, averaging 20+ years, while the Rheem Marathon leads tank-style heaters with a lifetime warranty. Standard steel-tank models fail within 8–12 years, so maximizing longevity requires either choosing a premium model, a tankless unit, or maintaining standard units.
Top 10 Water Heater Brands of 2026
Rheem water heaters are manufactured by the Rheem Manufacturing Company. Headquartered in Atlanta, Georgia, Rheem is a privately held corporation and a wholly owned subsidiary of Paloma Industries, a leading Japanese manufacturer of gas appliances.
No, Trane and Rheem are two entirely separate, competing HVAC manufacturers.
Yes, Rheem is generally considered just as good as Carrier, though they serve slightly different homeowner needs. Carrier is often viewed as the premium standard for high-end technology, while Rheem excels in long-term dependability, easier maintenance, and overall value.
Rheem furnaces are widely praised for their exceptional value, high energy efficiency (up to 98% AFUE), and technician-friendly design. However, as with any HVAC brand, consumer satisfaction heavily depends on proper installation and routine maintenance.
The best time to buy a furnace is during the off-season, specifically late spring (April-May) or early autumn (September-October), when HVAC companies are less busy and offer lower prices, rebates, or promotions. Purchasing in these shoulder seasons ensures faster installation times and better negotiating power compared to winter peak season.
The $5,000 rule is a guideline to help homeowners decide whether to repair or replace their HVAC system. You multiply the age of your unit by the cost of the needed repair. If that number exceeds $5,000, replacing your HVAC system is often more cost-effective.
A class action settlement (West v. Rheem Manufacturing Company, and Melet Plastics, Inc.) resolved allegations that specific Rheem water heaters with round poly drain valves (sold between 2019 and 2023) are defective and prone to leaking. The final deadline to submit a claim for this settlement was March 20, 2026.
Rheem is owned by Paloma Co., Ltd. (Paloma Industries), a privately held Japanese manufacturer of gas appliances and HVAC equipment based in Nagoya, Japan. Paloma acquired the Rheem brand in 1988.
Rheem furnaces typically feature a 10-year limited parts warranty and a Limited Lifetime Heat Exchanger warranty. To unlock these maximum terms, you must register the unit online within 60 days of installation. Unregistered furnaces default to a 5-year parts warranty.