Richardson Heating & Cooling is Dedicated to Your Home Comfort
Non-Condensing Concentric Vent Tankless Water Heaters
Fully modulating' gas fired' tankless water heater with sealed combustion and power vented flue. Supplies hot water to domestic hot water systems (directly or indirectly) and can be used with water storage tanks' recirculation systems' and/or combined domestic and heating applications.
- Copper Heat Exchanger 25x better heat transfer than stainless steel thus stabilizing outgoing water temperature quicker and reducing pressure drop across the heat exchanger
- Built-in Freeze Protection
- Field Convertable From NG to LP Gas
- Inlet and Outlet Thermistors for Constant Temperature Monitoring
- Concentric Vent Direct vent APNC35 concentric vent system' Vertical or horizontal vent termination installation' Power direct vent.
- Residential or Commercial
MODEL | Configuration | Max MBtuH | Min MBtuH | Flow Rate GPM | UEF | Temp. Range | Dimensions HxWxD | Weight Lbs. |
---|---|---|---|---|---|---|---|---|
GTS-110-NI | Interior | 140.0 | 19.5 | 6.60 | 0.82 | 20.25x13.75x7.75 | 33 | |
GTS-110-NE | Outdoor | 140.0 | 19.5 | 6.60 | 0.82 | 20.25x13.75x7.75 | 33 | |
GTS-310-NI | Interior | 190.0 | 11.0 | 8.00 | 0.82 | 20.25x13.75x7.75 | 38 | |
GTS-310-NE | Outdoor | 190.0 | 11.0 | 8.00 | 0.82 | 20.25x13.75x9.5 | 38 | |
GTS-510-NI | Interior | 199.0 | 11.0 | 10.00 | 0.83 | 20.25x13.75x9.5 | 39 | |
GTS-510-NE | Outdoor | 199.0 | 11.0 | 10.00 | 0.82 | 20.25x13.75x7.75 | 39 | |
GTS-110U-NI | Interior | 140.0 | 15.0 | 6.60 | 0.82 | 20.25x13.75x9.5 | 33 | |
GTS-110U-NE | Outdoor | 140.0 | 15.0 | 6.60 | 0.82 | 20.5x13.8x8.5 | 37 | |
GTS-310U-NI | Interior | 190.0 | 15.0 | 8.00 | 0.82 | 20.25x13.75x9.5 | 37 | |
GTS-310U-NE | Outdoor | 190.0 | 15.0 | 8.00 | 0.82 | 20.5x13.8x8.5 | 37 | |
GTS-910-NIEA | Interior | 380.0 | 15.0 | 14.50 | 0.82 | 25.3x24.8x11.8 | 113 | |
GTS-510C-NI | Interior Concentric | 199.0 | 15.0 | 10.00 | 0.82 | 20.5x13.75x10.5 | 51 | |
GTS-310C-NI | Interior Concentric | 190.0 | 15.0 | 8.00 | 0.82 | 20.5x13.75x10.5 | 51 | |
GTS-110C-NI | Interior Concentric | 140.0 | 15.0 | 6.60 | 0.82 | 20.5x13.75x10.5 | 51 |
Warranty Information
- All Parts for 60 months -
- Heat Exchanger for 180 months - 15 Years
Available Documents
- View Document (Specification Sheet, Technical Information)