With a 6-star energy rating the Onsen ONHW26NG50 26L Natural Gas Hot Water System is a reliable and efficient unit to meet your hot water needs.
This continuous flow system gives you constant supply of hot water so you can enjoy hot showers with minimal fuss. Unlike traditional hot water storage systems, you don’t need to wait for your water supply to refill and heat up when the hot water is used up. Additionally, finding an outdoor location to install this unit is made simpler because you don’t need to find space for a large water tank.
With advanced microcomputer chips built into the system, this intelligent unit maintains a constant preset water temperature of 50°C, while ensuring ease of use and efficient operation. With a host of safety features, you can also have peace of mind knowing your hot water supply is in good hands with Onsen.
This continuous flow system gives you constant supply of hot water so you can enjoy hot showers with minimal fuss. Unlike traditional hot water storage systems, you don’t need to wait for your water supply to refill and heat up when the hot water is used up. Additionally, finding an outdoor location to install this unit is made simpler because you don’t need to find space for a large water tank.
With advanced microcomputer chips built into the system, this intelligent unit maintains a constant preset water temperature of 50°C, while ensuring ease of use and efficient operation. With a host of safety features, you can also have peace of mind knowing your hot water supply is in good hands with Onsen.

Designed for outdoor installation
This water heater is engineered with a hermetic rainproof structure and strong wind pressure protection for reliable operation in outdoor locations.

Digital control temperature
A sensor probe monitors real-time temperatures to automatically adjust gas and air supply in order to maintain a constant temperature.

Automatic error detection
For your peace of mind, the control board monitors various components during operation including the fan, control circuits, and safety units. If an error is detected, the water heater will stop working to ensure safety and reliability.


