New S20W Series

Space Saving High-Performance Wall-Mounted Indirect Water Heater

Pound for pound the S20W is our highest performance tank. With recovery rates that exceed most industry standard 50 and 65 gallon indirects, this small but mighty tank delivers an exceptional amount of hot water.

Fully pickled and passivated, the 444 Stainless Steel tank and coil come in a wall-mounted package complete with a metal jacket to complement the quality look and feel of the NTI boiler line. The CFC-free 2” ultra high density EPS insulation ensures low standby losses and each unit comes complete with a thermostatic mixing valve, tank sensor and T&P valve. A hand hole at the top of the tank allows for inspection and cleaning.

Also available is an optional floor stand, NTI Part # 86998.

Main Features

High quality Stainless Steel Tank & Coil, type 444

CFC-free 2” ultra-high density EPS insulation

All units provided with thermostatic mixing valve

Limited Lifetime Warranty

Manuals & Guides

S20W High Performance Wall-Mounted Indirect Brochure


Trin&Stor S Series Installation and Operation Manual


Trin&Stor S Series Submittal


Trin & Stor S20W Series Submittal


Trin&Stor ST Series Submittal


Trin & Stor S Series Revit Native Files



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