Therma-Flow provides the ideal solution to supplying ever ready, ever hot and an always plentiful supply of domestic hot water for your home or business. Each Therma-Flow AquaPlus tank with its specially designed mega coil heats water by capturing the energy created by your existing boiler. It's called an"indirect water heater," because it's linked to your boiler and stores hot water at the desired temperature. The AquaPlus tank is thermally wrapped so it easily maintains hot water temperature and, because the AquaPlus is glasslined, it offers exceptional long term performance. It's durable and the Mega Coil assures you of a reliable way to meet your most demanding hot water requirements. AquaPlus tanks are designed to serve a wide range of hot water applications and provide superior performance with all kinds of hydronic, radiant heat and steam heating systems. Households with multiple appliances and bathrooms, whirlpools, and hot tubs, benefit from an ample supply of hot water without concern of runouts.

Glass-lined heat exchanger within a glass-lined tank
• Over sized mega coil guarantees superior heat transfer
• Stylish outer jacket
  

Therma-Flow provides the ideal solution to supplying ever ready, ever hot and an always plentiful supply of domestic hot water for your home or business. Each Therma-Flow AquaPlus tank with its specially designed mega coil heats water by capturing the energy created by your existing boiler. It's called an"indirect water heater," because it's linked to your boiler and stores hot water at the desired temperature. The AquaPlus tank is thermally wrapped so it easily maintains hot water temperature and, because the AquaPlus is glasslined, it offers exceptional long term performance. It's durable and the Mega Coil assures you of a reliable way to meet your most demanding hot water requirements. AquaPlus tanks are designed to serve a wide range of hot water applications and provide superior performance with all kinds of hydronic, radiant heat and steam heating systems. Households with multiple appliances and bathrooms, whirlpools, and hot tubs, benefit from an ample supply of hot water without concern of runouts.

Glass-lined heat exchanger within a glass-lined tank
• Over sized mega coil guarantees superior heat transfer
• Stylish outer jacket
  

Viessmann Vitocell 300-W EVIA-42 Stainless Steel Domestic Vertical Vitocell 300-W single-coil domestic hot water tanks are made of high-alloy stainless steel to satisfy the highest expectations with respect to hygiene, recovery rates and service life expectancy.

Viessmann EVIA-53 Indirect Water Heater 53Gallon Stainless Steel Heater

viessmann evia-53

Viessmann EVIB-42 Indirect Water Heater 42 Gallon Heater

Viessmann EVIA-79 Indirect Water Heater 79Gallon Stainless Steel Heater

Viessmann EVIB-53 Indirect Water Heater 53 Gallon Heater

Viessmann EVIB-79 Indirect Water Heater 79 Gallon Heater

Heat-Flo Water Heaters HF-80 Indirect Water Heater 80 Gallon 127k BTU Stainless Steel

ECR International H2OI40DK 316L Stainless Steel Single Coil Indirect Water Heater, 40 Gallon, 10 gpm, 124500 BTU

Stainless steel dip tube
• Thermoplastic jacket, low pressure drop
• Temperature and pressure valve, stainless steel aquastat well and drain valve (factory installed-taped and doped)
• Large diameter, smooth coil heat exchangers - prevent build-up
• Magnesium anode rod, 2.25" EPS insulation
  

ECR International H2OIG40DK Indirect Water Heater 42 Gallon