The Rheem SCG40T03ST34U1 is a 40-gallon tall natural gas water heater designed for residential use. Sold under the Sure Comfort brand, it features a 34,000 BTU input, an atmospheric venting system, and a maintenance-free low-NOx burner. It delivers reliable hot water with a first-hour rating of approximately 67 gallons and a recovery rate of about 34 gallons per hour at a 90°F rise.

Engineered for durability and ease of use, the unit includes a piezo ignition system, a magnesium anode rod for corrosion protection, and factory-installed T&P valve. With a Uniform Energy Factor (UEF) of 0.59, it balances performance and efficiency for mid-size households.

This model is suitable for installations up to 8,400 feet elevation and comes with a 3-year limited tank warranty.