Description
State Proline XE Series 199,000 BTU Condensing Gas Tankless Water Heater with Recirculation Pump – SGTS540PNIH
The 540P series integrates a recirculation pump to provide instant hot water in residential applications with dedicated recirculation lines. The pump is easily controlled with a simple user interface and multiple pump settings allow you to customize pump operation to meet your needs while maximizing heater efficiency.
The GTS-540P-NIH indoor tankless water heater uses up to 199,000 BTU/hr of natural gas to deliver an endless supply of hot water for a 3 bath home in northern climates and a 4 bath home in southern climates.
Features
- Energy Star Qualified
- Integrated reciruclation pump
- Complies with SCAQMD Rule 1146.2 and other air quality management districts with similar requirements for Ultra-Low NOx emissions requirements of 14 ng/J or 20 PPM
- Includes integrated temperature and pump controls with advanced diagnostics that simplify installation and troubleshooting
- Factory-installed power cord
- Common vent compatible
- Easy-link with up to three other units to increase flow rate
- Exhaust and water temperature safety contro
- Overheat cut-off fuse
- Air-fuel ratio (AFR) sensor
- Internal freeze protection system
What Our Experts Think
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Endless Hot Water: Tankless design provides continuous hot water on demand with no storage tank limitations
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High-Output Performance: Powerful 199,000 BTU input supports high-demand, multi-bath residential use
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Built-In Recirculation Pump: Delivers faster hot water to fixtures when properly plumbed, reducing wait time and water waste
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Condensing Efficiency: High-efficiency condensing technology lowers energy consumption and operating costs
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Durable Construction: Commercial-grade heat exchangers designed for long service life and consistent performance
Q&A
Q: What fuel type does this unit use?
A: Natural Gas (NG)
Q: Does it provide unlimited hot water?
A: Yes, it delivers continuous hot water as long as demand stays within capacity
Q: What is the benefit of the integrated recirculation pump?
A: It helps reduce the time it takes for hot water to reach faucets
Q: Is this suitable for large homes?
A: Yes, it’s ideal for homes with multiple bathrooms or high hot-water demand
Q: Is this an energy-efficient model?
A: Yes, the condensing design significantly improves efficiency compared to standard tank heaters
Maintenance Tips
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Flush and descale annually to prevent mineral buildup
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Inspect venting and air intake to ensure clear airflow
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Check gas connections periodically for safety
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Inspect and test the recirculation pump regularly
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Schedule annual professional service for optimal performance and longevity






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