American hot water tanks are available for purchase at Amazon.com. As of March 2015, the BFG61 natural gas hot water heater is available in both 40-gallon and 50-gallon models. Also available is American Water Heaters' electric E62 model in 50-gallon capacity.
American hot water heaters utilize a Piezo electric igniter and are engineered with a fused ceramic shield tank to protect against corrosion. Prices range from roughly $360 to $480, with natural gas-fired tanks sold at a higher price.
American Water Heaters also manufactures point-of-use water heaters. A 2.5-gallon electric point-of-use water heater is available at Lowes at an approximate price of $240. This compact model is intended for wall-mount applications and provides an external temperature control. American Water Heaters is a Johnson City, Tennessee-based company that manufacturers both residential and commercial water heaters.