- Indoor use only
- CSA Certified for the USA and Canada
- Activated by a minimum of 15 PSI and 0.67-gal/min flow rate
- Electronic ignition (no pilot light and no wasted gas)
- Includes Z-Vent 3-in wall vent kit for exhaust: termination hood, 90° Elbow, wall thimble, 12-in straight pipe, 18-in straight pipe and appliance adapter with backflow preventer
- Includes Onsen 3-in Air intake Kit: 4-10-ft insulated aluminum pipe, Mylar vapour barrier, termination hood, 2 x gear clamps
Onsen 14L 3.7-gal./min 100,000-BTU Indoor Natural Gas Tankless Water Heater W/ Vent & Air Intake Kits
$396.00 Original price was: $396.00.$97.99Current price is: $97.99.
- 7 days return and exchange
- 100% environmentally friendly material
- Service that stands out, online and always timely.
- Unbeatable Quality, Unbeatable Value

Enjoy hot water on demand, anytime! The Onsen 14L indoor gas tankless water heater turns cold water into instant hot water when you want it. Fueled by natural gas, the 14L has an electronic ignition powered by a standard 120v outlet and activated by water pressure & flow. It also features a direct vent system that pulls air from the outside, allowing for installation in restricted spaces. The 14L is designed with a control system that monitors the water temperature and adjusts the burner to deliver a stable supply of hot water, while the LED display and control panel allow you to view current settings and select outgoing temperatures between 95°F and 140°F (35°C – 60°C). Requiring less than 1 amp, the 14L is ideally suited for remote locations equipped with an off-grid solar system. Compact and energy-efficient, the Onsen 14L is your hot water solution for a 1-bath apartment, tiny home, cabin, or cottage. Not suitable for hydronic, closed loop, recirculating or floor heating systems.
| Safety Listing | CSA safety listing |
|---|---|
| Bluetooth Compatibility | No |
| Major Appliances Supplied Simultaneously | 1 |
| Maximum Gallons per Minute | 3.7 |
| Point of Use | No |
| Uniform Energy Factor | 0.82 |
| Installation Location | Indoor |
| Mobile Home Compatible | Yes |
| Remote Wireless Thermostat | Not available |
| Ignition Type | Electronic |
| Vent Type | Gas single wall |
| Fuel Source | Natural gas |
| High Efficiency | No |
| Wi-Fi Compatibility | No |
| ENERGY STAR Certified | No |
| Weight (lb) | 32 |
| Electronics Warranty Parts | 24 |
| Electronics Warranty Labor | 0 |
| Base Warranty Labor | 0 |
| Base Warranty Parts | 60 |
| Depth(in) | 5.59 |
| Width(in) | 13.9 |
| Height(in) | 25.94 |
| Commercial/Residential | Residential |
| Warranty | 5-year limited |
| Type | Water heater |
| Series Name | N/A |
| Country of Origin | China |
| Freeze Protection | No |
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