HUG Hydronics
TANKLESS WATER HEATER CONDENSING INDOOR 120,000 BTU Natural Gas
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State Water Heaters Model # GTS-140-NIH
Works seamlessly with the HUG Hydronics in-floor heating system.
The 140 Series offers high-efficiency Ultra-Low NOx condensing technology allowing for the use of 3” PVC venting and has 0” clearance to combustibles. Remote control included as a standard feature. Indoor models are certified up to 10,100 ft. altitude. Provides a variety of installation options: indoor, outdoor and direct vent. Complies with Ultra-Low NOx regulations and meets the energy efficiency requirements of ASHRAE 90.1b-1992.
The GTS-140-NIH tankless water heater uses up to 120,000 BTU/h of natural gas to deliver a max flow rate of 6.6 GPM. It utilizes condensing technology to achieve a Uniform Energy Factor of 0.90, and is ENERGY STAR qualified. This model meets Low NOx emission requirements and comes with a 15-year limited warranty.
![Indoor condensing tankless gas water heater to use with the HUG Hydronics in-floor heating system](http://hughydronics.com/cdn/shop/products/Indoor-Condensing-Tankless-Gas-Water-Heater-140_1445x.png?v=1713882797)
![HUG Hydronics Gas On Demand Heater Installation instructions. 1. Moutn the heater 1 to 2 feet above the tank, ideally. 2. Refer to the install manual for installation details. 3. Connect the 2 brass fittings provided with the heater. 4. Connect the heater hoses from the HUG Hydronics tank to the heater using the clamps provided. 5. Fora dedicated on- demand gas heater, an overflow conenction may be required on the tank to demonstrate open system conditions.](http://hughydronics.com/cdn/shop/products/Screenshot2021-10-151.51.21PM_1445x.png?v=1713882791)