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Heating, Cooling, Air Quality & Water Heating Systems


Krooswyk Plumbing, Heating, and Air Conditioningstarstarstarstarhalf star4.6 / 5

31 Total Reviews Krooswyk Plumbing, Heating, and Air Conditioning


Non-Condensing Standard Vent Tankless Water Heaters

Fully modulating' gas fired' tankless water heater specifically designed for residential and commercial applications. Supplies hot water to domestic hot water systems (directly or indirectly) which can be used with storage tanks' recirculation systems' hydronic heating systems' radiant floor heating systems' and/or combined domestic and heating applications.

  • Remote Control Included with all models
  • Low NOx
  • Copper primary heat exchanger is constructed of commercial-grade copper' which is stronger than standard copper and more resilient against erosion.
  • Built in freeze protection
  • Category III Venting
  • Surge protection
  • Troubleshooting and diagnostic codes
MODELConfigurationMax
MBtuH
Min
MBtuH
Flow Rate
GPM
UEFTemp.
Range
Dimensions
HxWxD
Weight
Lbs.
GTS-110-NI Interior 140.0 19.5 6.60 0.82 20.25x13.75x7.75 33
GTS-310-NIInterior 190.0 11.0 8.00 0.82 20.25x13.75x7.75 38
GTS-510-NIInterior 199.0 11.0 10.00 0.83 20.25x13.75x9.5 39
GTS-110U-NIInterior 140.0 15.0 6.60 0.82 20.25x13.75x9.5 33
GTS-310U-NIInterior 190.0 15.0 8.00 0.82 20.25x13.75x9.5 37
GTS-910-NIEAInterior 380.0 15.0 14.50 0.82 25.3x24.8x11.8 113
GTS-510U-NIInterior 199.0 15.0 10.00 0.82 20.25x13.75x9.5 39

Warranty Information

  • All Parts for 60 months -
  • Heat Exchanger for 144 months - Residential Applications
  • Heat Exchanger for 60 months - Commercial Applications
  • Heat Exchanger - GTS-910 Residential: 10 Years

Available Documents