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​Niles Steel Tank

Niles Steel Tank Stainless Steel Single-Wall Indirect Water Heater

Stainless Steel Single-Wall Indirect Water Heater


  • Stainless Steel Heat Exchanger—Single-wall 1" O.D. stainless steel coil.
  • Maximum supply temperature from the boiler must not exceed 250°F.
  • Stainless Steel Tank and Heat Exchanger—Made from chromium molybdenum - titanium ferritic 444 stainless steel alloy. Dual stainless steel heat exchanger is utilized on NRTV-75D-L model.
  • Immersed Adjustable Honeywell Aquastat—Fast acting immersion aquastat for automatic temperature control (adjustable from 80°F to 160°F).
  • Supply and Return Connections—3⁄4" NPT female connections are located on the front for both the boiler supply and boiler return (1" NPT on NRTV-119-L).
  • 2" Non-CFC Foam Insulation—Covers the side and top of tank, reducing the amount of heat loss. This results in less energy consumption, improved operation efficiencies and jacket rigidity.
  • Potable Water Connections—3/4" NPT factory installed dielectric fittings extend water heater life and eases installation (11⁄4" NPT on NRTV-119).

About ​Niles Steel Tank

Niles Steel Tank designs and manufactures water storage tanks, pressure vessels and steel tanks for boilers.

  • Lined hot water storage tanks from 30 gallon - 3,000 gallon
  • Hot water generator tanks
  • Blowdown tanks
  • Solar tanks
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