High Efficiency Condensing Gas Tank Water Heaters

Condensing water heaters are more energy-efficient and cost less to operate than non-condensing models. A. O. Smith condensing gas tank water heaters deliver unlimited single showers versus 37 minutes for non-condensing models, and can fill bathtubs up to 112 gallons versus 87 gallons. The higher upfront cost is offset by lower monthly energy bills and potential rebates up to $850. Non-condensing models cost less initially and work well for homes with moderate hot water needs, but condensing units provide better long-term value through energy savings.

Condensing water heaters are worth it if you want lower energy bills and better performance. The efficiency gains—0.88-0.90 UEF versus 0.62 for standard models—translate to real savings on your utility bills over the 6-10 year warranty period. You'll get more hot water (190-gallon first hour ratings on some models) and may qualify for local utility rebates up to $850. The technology costs more upfront, but the combination of energy savings, improved performance, and available rebates makes condensing water heaters a smart long-term investment for most homes.

Tankless water heaters cost more upfront and may need electrical or gas line upgrades before installation. They heat water at 2-10 gallons per minute, so running multiple showers and appliances simultaneously might exceed capacity. However, they provide continuous hot water for back-to-back showers without waiting, save space with compact designs, and cost less to operate daily. Tankless works great for smaller households or predictable usage patterns, while tank water heaters handle simultaneous heavy use better.