Tunstall Industries offers stainless steel DHW tanks & water heaters in commercial non-ASME sizes up to 110 gallons. The current industry standard in this size & price range uses glass-lined carbon steel tanks. The embodied carbon with consistent tank replacement can be avoided by using a long lasting tank. Stainless steel is corrosion resistant without requiring sacrificial anodes, and is a recyclable material. Pricing is comparable to the current industry standard - for a much longer lasting product. Tunstall offers storage tanks as well as indirect water heaters with internal hydronic coil. Fittings on the storage tanks are designed for heat pump water heating configurations, solar thermal energy input, external heat exchanger fed by boiler loop or district energy system, or other external energy sources.