State Proline XE Series 160,000 BTU Condensing Gas Tankless Water Heater - SGTS240X3NIH

State Proline XE Series 160,000 BTU Condensing Gas Tankless Water Heater - SGTS240X3NIH

The Proline XE Condensing Ultra-Low NOx series with X3 Scale Prevention Technology is well suited for residential applications. State has combined water heating and treatment in a product designed to revolutionize tankless water heating. Their new condensing gas tankless line features X3 Scale Prevention Technology to last three times longer than other tankless models without X3 Technology.

The GTS-240HX3-NIH tankless water heater uses up to 160,000 BTU/hr of natural gas to deliver an endless supply of hot water for a 2 bath home in northern climates and up to a 3 bath home in southern climates (one shower head per bath).

Features

• Energy Star Qualified
• X3 Scale Prevention Technology
• No annual descaling required
• No scale buildup means the heater lasts 3 times longer than competiros and maintains like-new performance longer
• Primary heat exchanger is constructed of a commercial-grade copper that is more resilient to corrorsion than other materials
• Secondary heat exchanger is made of 316L Stainless Steel to protect against corrosion
• Qualified as lead free under the Safe Drinking Water Act
• Exhaust and water temperature safety controls
• Overheat cut-off fuse
• Air-fuel ratio (AFR) sensor
• Internal freeze protection system
• Tankless water heaters with X3 Technology are approved to work with an external recirculation pump and cross-over valve
• Category III or IV venting can be used

What Our Experts Think

• Efficient 160,000 BTU output ideal for medium-demand households.

• X3 Scale Prevention Technology extends lifespan up to 3x versus standard tankless heaters.

• Ultra-Low NOx design for environmentally friendly operation.

• Continuous hot water delivery for residential applications.

• Condensing technology maximizes energy recovery and reduces utility costs.

Q&A

• Q: What type of homes is this suitable for?
  A: Residential homes with moderate hot water demand.

• Q: How does X3 Technology benefit the unit?
  A: Prevents scale buildup, reducing maintenance and increasing longevity.

• Q: Are emissions low?
  A: Yes, it features Ultra-Low NOx emissions.

• Q: What is the BTU rating?
  A: 160,000 BTU for reliable water heating performance.

Maintenance Tips

• Flush annually to remove mineral buildup.

• Clean inlet filters regularly for optimal efficiency.

• Inspect venting and gas connections periodically.

• Schedule professional servicing every 1–2 years.

• Use compatible water treatment solutions to support X3 Technology and prevent scaling.