What is the best water heater brand?
To be candid, there isn’t a “best” water heater brand. If you really do the research, you’ll see that virtually all water heaters are made the same way.
Water heaters are constructed with a steel tank, a glass lining which protects the steel, and an anode rod which is only in the water heater as a sacrificial metal. In brief, the anode rod sits inside the water tank and allows water to attack it. Because the corrosive water attacks the anode rod first, it preserves the steel tank. Once the anode rod has corroded away, the water then moves to eat away at the steel tank.
So, if water heaters are made the same way which brand do I choose?
Go with the brand that your plumber chooses to warranty with an installation/labor guarantee.
Virtually all water heaters come with a 6-year warranty (you can purchase extended warranties for extra money) on the tank and parts. However, what you don’t receive with your new water heater is an “installation warranty or labor warranty.”
This is where your plumber comes in. Find out which brand your plumber will warranty with a labor guarantee, and that should be the water heater you choose.