One of the models among a variety of Takagi TK-3 tankless models is the Takagi TK-3-OS-NG model which is based on natural gas and is suitable for outside installations only. This model is manufactured keeping in mind different climatic conditions and requirements. It is best suited for warmer climates and does not require an additional venting which reduces the installation cost and makes the set up process much easier. It also consists of a built in freeze protection system.
The Takagi TK-3 natural gas model uses natural gas as its fuel and has a maximum BTU rating of 190,000 BTU/h with an energy saving efficiency up to 83% which has increased its demand. It consists of hot and cold water supply connections of 3/4” NPT and a gas connection of the same size. It weighs 40 lbs and includes electronic ignition. This water heater has a capacity of supplying water to 3 fixtures at 70F or larger inlet water temperature, or 2 fixtures at 40F inlet water temperature.
These features make it perfect for domestic hot water or radiant heating applications in small to medium size residential spaces consisting of two to three bathrooms. In comparison to a regular storage water tank heater, the installation of Takagi TK-3 model can save up to 45% of monthly gas bills of the owners making it an ultimate tankless water heater.