Types

Family

Model

Series Model Spec Sheet
Adapt™ XE Natural Gas Premium Condensing Tankless Water Heater with X3® Scale Prevention Technology STHR-160X3
STHR-180X3
STHR-199X3		  SRESS00523

 SRGCP00123 - Sales Sheet  
Adapt™ XE Natural Gas Premium Condensing Tankless Water Heater with with Bypass Cartridge STHR-160M
STHR-180M
STHR-199M		  SRESS00523

 SRGCP00123 - Sales Sheet  
Proline® XE Condensing Tankless with X3® Scale Prevention Technology GTS-540X3-NIH
GTS-540X3-NEH
GTS-540X3-PIH
GTS-540X3-PEH
GTS-340X3-NIH
GTS-340X3-NEH
GTS-340X3-PIH
GTS-340X3-PEH
GTS-240X3-NIH
GTS-240X3-NEH
GTS-240X3-PIH
GTS-240X3-PEH		 SRGSS00221
Proline® XE Non-Condensing Concentric Vent Tankless with X3® Scale Prevention Technology GTS-310CX3
GTS-510CX3		 SRESS00423
Tankless Non-Condensing Concentric Vent GTS-310C
GTS-510C		 SRGSS01215
Tankless Condensing with Integrated Recirculation Pump GTS-540P-NIH
GTS-540P-PIH
GT-540P-NEH
GT-540P-PEH		 SRGSS00416
Tankless Accessory- Product Preservers®   SRGSS00217
Tankless Ultra-Low NOX Non-Condensing GTS-110U-I
GTS-310U-I
GTS-510U-I
GTS-110U-E
GTS-310U-E
GTS-510U-E
GTS-110U-NI
GTS-310U-NI
GTS-510U-NI
GTS-110U-NE
GTS-310U-NE
GTS-510U-NE		 SBGSS00111
SBGSS00111 (old)
Tankless Ultra Low-NOX Condensing GTS-240-NIH
GTS-240-PIH
GTS-340-NIH
GTS-340-PIH
GTS-540-NIH
GTS-540-PIH
GTS-240-NEH
GTS-240-PEH
GTS-340-NEH
GTS-340-PEH
GTS-540-NEH
GTS-540-PEH
 		 SRGSS05012
Tankless Ultra Low-NOX Condensing (Continued) GTS-240-NEH
GTS-240-PEH 
GTS-340-NEH
GTS-340-PEH
GTS-540-NEH
GTS-540-PEH		 SRGSS00114
Tankless GTS-110-NI
GTS-110-PI
GTS-110-NE
GTS-110-PE
GTS-310-NI
GTS-310-PI
GTS-310-NE
GTS-310-PE
GTS-510-NI
GTS-510-PI
GTS-510-NE
GTS-510-PE		 SBGSS00114
Tankless (Continued) GTS-910-NIE
GTS-910-PIE
GTS-910-NIEA
GTS-910-PIEA		 SCGSS00210
Tankless Recess Boxes  
SRGSS00320