Takagi T-KJr2-OS-LP Outdoor Tankless Water Heater is a Non-Condensing Gas Tankless Water Heater that takes Liquid Propane as fuel. It advanced from its prior version in terms of the location of the inlets and outlets. It is only suitable for outdoor installation as it gives better ventilation scopes. With 82% energy efficiency, this Tankless heater is safe from air pollution. It gives you 6.6 GPM at 35°F temperature rise and 3.3 GPM at 70°F rise. If you are looking for a gas-fired tankless heater for a medium to a small home, this one is a match.
Takagi T-T-KJr2-OS-LP Outdoor Tankless Water Heater is a Non-Condensing Gas Tankless Water Heater that takes Liquid Propane as fuel. It advanced from its prior version in terms of the location of the inlets and outlets. It is only suitable for outdoor installation as it gives better ventilation scopes. With 82% energy efficiency, this Tankless heater is safe from air pollution. It gives you 6.6 GPM at 35°F temperature rise and 3.3 GPM at 70°F rise. If you are looking for a gas-fired tankless heater for a medium to a small home, this one is a match.
Features
Energy-efficient and compliant with industry policies
In the 21st-century zeitgeist, tankless heaters are concentrating more and more on energy efficiency and power efficiency. With a gas input of 140,000 BTU, Takagi saves a lot of electricity. Takagi T-KJr2-OS-LP Outdoor Tankless Water Heater has a design certified by CSA according to ANSI Z21.10.3, which must be approved for sale in the United States. Have an energy factor of 0.82. It also meets the energy efficiency requirements of the U. S. Department of Energy and ASHRAE 90.1. Takagi T-T-KJr2-OS-LP is safe for homes; because it emits minimum nitrogen oxide and thus complies with Low NOx emissions of 40 ng/J or 55 ppm. It is also certified by NSF to NSF/ANSI 5 Standard.
Power saving
This fully modulating, on-demand unit has the power-saving feature of a self-modulating heating system. When the self-modulating sensor senses the water flow over 0.75 GPM, it turns on the burner to heat water. The first proportional gas valve heats up after sensing, and then the fan starts to run the exhaust, as it consumes minimal electricity at standby mode, only 6.2 watts.
Smallest
Takagi T-KJr2-OS-LP Outdoor Tankless Water Heater is the smallest unit in the Takagi line-up. With 6.7 x 13.8 x 20.5 inches dimension, this model is one of the smallest and handy for homes with space limitations.
Equipped with safety features
Takagi T-KJr2-OS-LP is suitable for outdoor usage, so a freeze protection feature is added; there is also an overheat protection that turns it off when overheated, also there lies a surge protection option in the heater. When the heater is not performing, it sends troubleshooting diagnostic codes to the digital display, which ultimately helps you to diagnose the time for maintenance.
Digital scale and remote control
It has a convenient remote control and a digital scale for controlling the temperature from a distance. The scales offer you to set the heat from 113-140 degrees F. Such temperature controlling powers say you need not take the hassle of mixing the cold and hot water; select a constant temperature through the shower time.
Pros
- Usable up to 6000 ft altitude
- Copper heater for better efficiency
- Easy troubleshooting through error code manual instruction
- Air-Fuel Ratio Rod to measure and adjust to maintain optimal combustion efficiency
Cons with solution
Hot water insufficiency
It does not produce hot water on several occasions.
Solution
There can be many reasons behind lukewarm water; get to know the reason, then solve it-It is recommended to install at a place in the middle of where all water application happens. This will guarantee the hot water; the journey from the heater to faucet water can take cold down; this is true for all water heaters except for the point of use ones because those are installed right in the place of water fixtures.
Cross plumbing between your hot and cold water line is crucial. If these things are messed up, cold water may get inside hot water, and the temperature may have waned.
Some reasons behind inadequate hot water are scarce gas supply, ajar gas supply valve, improperly positioned, or mismatched sizes of the gas supply line. All these things can cause low gas and less hot water. These are not heater-specific problems these need to be resolved for best performance. Contact a Takagi service agent to come and check for the solution.
Hard water application
Takagi T-T-KJr2-OS-LP Outdoor Tankless Water Heater warns to use it against water hardness levels exceeding 7 grains per gallon, which is pretty much against hard water conditions.
Solution
With hard water conditions, any water fixtures cannot function smoothly for an extended period, like 12 to 15 years. Takagi asks you to use this heater on the water with a pH level between 6.5 and 8.5. Water hardness palpably leads to scale formation and damage to the water heater. This is why hard water needs to be treated before using this heater on it.
Frequently Asked Questions
What are the warranty clauses
It gives a warranty on residential usage for a 12-year heat exchanger, five years on parts, and one year on labor warning- installed by anyone other than licensed personnel or heater break down due to hard water condition will void the warranty.
If I use it indoors, what vent requirement do I need to follow?
First of all, it is best not to install it in a place like an attic where the vent will be harnessed. Still, if you want to use it inside the home, use the indoor heater. It shall be vented with a 4” diameter Category III vent pipe with a length not to exceed 50 ft., which is terminated either horizontally or vertically. The indoor heater needs a direct vent with an optional direct vent conversion kit, 9007667005, using a 3” diameter air intake pipe (PVC, ABS, aluminum, or Category III pipe and cannot exceed 50 ft).
What size of gas and water line is required, and what are the Electricity requirements?
3/4" NPT is the required gas and water line size, needs 120 / 60 VAC / Hz as electricity supply.
Conclusion
T-KJr2-OS-LP Tankless Water Heater is designed for outdoor purposes and needs a proper ventilation facility for safety and efficiency. This version of Takagi is so popular that it has three same-type heaters with the same features, slightly different in terms of inside material positioning and indoor-outdoor usage. If you cannot still understand if it is for you, I would like to add- It is recommended for a one bathroom home in colder places and two-bathroom homes in warmer areas.