Indirect DHW tank

Viessmann’s Vitocell 300-W single-coil indirect-fired 42-gallon DHW tank is made of high-alloy stainless steel. It features a large-diameter 1-3/8” non- finned stainless steel heat exchanger coil that extends to the bottom of the tank and NPT connections. The units have 2-5/8” foam insulation to help minimize standby losses.