Sate Water Heater Brochure
• Category III Stainless Steel Venting
• Indoor Models Include Remote Control and Power Cord
as Standard Features
• Outdoor Models Include Remote Control as a Standard Feature
• Low NOx Emissions
• 15 Year Limited Residential Heat Exchanger Warranty
• 5 Year Limited Commercial Heat Exchanger Warranty
• 5 Year Limited Parts Warranty
Model
Number*
Type
BTU/h Input
Natural/Propane
Uniform
Energy
Factor (UEF)
Minimum Maximum
GTS-110-NI Indoor 19,500 140,000 0.79
GTS-310-NI Indoor 11,000 190,000 0.80
GTS-510-NI Indoor 11,000 199,000 0.80
GTS-110-NE Outdoor 19,500 140,000 0.79
GTS-310-NE Outdoor 11,000 190,000 0.80
GTS-510-NE Outdoor 11,000 199,900 0.80
Model
Number*
Hot Water Output (GPM)
Unit
Weight
(lbs.)
Max. 45°F Rise 70°F Rise
GTS-110-NI 6.6 5.1 3.3 33
GTS-310-NI 8.0 6.9 4.4 38
GTS-510-NI 10.0 7.2 4.7 39
GTS-110-NE 6.6 5.1 3.3 33
GTS-310-NE 8.0 6.9 4.4 38
GTS-510-NE 10.0 7.2 4.7 39
*For Propane, change the N to P in the model number when ordering:
Example: GTS-110-PI.
• Complies with Ultra-Low NOx Regulations
• Gas convertible from Natural Gas to Propane using supplied kit
• Vents with contractor preferred concentric venting
• Models have integrated controls and diagnostics
• 15 Year Limited Residential Heat Exchanger Warranty
• 5 Year Limited Commercial Heat Exchanger Warranty
• 5 Year Limited Parts Warranty
Model
Number*
Type
BTU/h Input
Natural/Propane
Uniform
Energy Factor
(UEF)
Minimum Maximum
GTS-110C-NI Indoor 15,000 140,000 0.81
GTS-310C-NI Indoor 15,000 190,000 0.82
GTS-510C-NI Indoor 15,000 199,000 0.81
Model
Number*
Hot Water Output (GPM)
Unit
Weight
(lbs.)
Max. 45°F Rise 70°F Rise
GTS-110C-NI 6.6 5.1 3.3 51
GTS-310C-NI 8.0 6.9 4.4 51
GTS-510C-NI 10.0 7.2 4.7 51
*Indoor models only. Units are field convertible from natural gas to propane with
supplied conversion kit.
• Ultra-Low NOx Condensing Technology Provides Significant
Energy Cost Savings- Up to 0.95 Uniform Energy Factor
• ENERGY STAR
®
Qualified
• Indoor Models Have Integrated Controls & Diagnostics
• Outdoor Models Include Remote Control as Standard Feature
• 15 Year Limited Residential Heat Exchanger Warranty
• 5 Year Limited Commercial Heat Exchanger Warranty
• 5 Year Limited Parts Warranty
Model
Number*
Type
BTU/h Input
Natural/Propane
Uniform
Energy Factor
(UEF)
Minimum+ Maximum
GTS-140-NIH Indoor 15,000 120,000 0.90
GTS-240-NIH Indoor 15,000 160,000 0.94
GTS-340-NIH Indoor 15,000 180,000 0.95
GTS-540-NIH Indoor 15,000 199,000 0.93
GTS-540P-NIH Indoor 15,000 199,000 0.93
GTS-140-NEH Outdoor 15,000 120,000 0.91
GTS-240-NEH Outdoor 15,000 160,000 0.95
GTS-340-NEH Outdoor 15,000 180,000 0.94
GTS-540-NEH Outdoor 15,000 199,000 0.95
GTS-540P-NEH Outdoor 15,000 199,000 0.95
Model
Number*
Hot Water Output (GPM)
Unit
Weight
(lbs.)
Max. 45°F Rise 70°F Rise
GTS-140-NIH 6.6 5.0 3.2 44
GTS-240-NIH 6.6 6.6 4.3 58
GTS-340-NIH 8.0 7.6 4.9 58
GTS-540-NIH 10.0 8.4 5.4 59
GTS-540P-NIH 10.0 8.4 5.4 59
GTS-140-NEH 6.6 5.0 3.2 44
GTS-240-NEH 6.6 6.6 4.3 58
GTS-340-NEH 8.0 7.6 4.9 58
GTS-540-NEH 10.0 8.4 5.4 59
GTS-540-NEH 10.0 8.4 5.4 59
GTS-540P-NEH 10.0 8.4 5.4 59
*For Propane, change the N to P in the model number when ordering:
Example: GTS-240-PIH.
+Propane (LP) Gas minimum Btu/h is 13,000. Except GTS-140 models.
NON-CONDENSING
CONCENTRIC VENT
HIGH EFFICIENCY
CONDENSING
NON-CONDENSING