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Takagi T-KJr2-OS-LP Tankless Outdoor Propane Water Heater Review

Takagi T-KJr2-OS-LP Outdoor Tankless Water Heater is a Non-Condensing Gas Tankless Water Heater, which takes Liquid Propane as fuel. It advanced from its prior version in terms of 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 gas fired tank less heater for a medium to small home than this one is a match.

Takagi T-KJr2-OS-LP Tankless Outdoor Propane Water Heater Review

Takagi T-T-KJr2-OS-LP Outdoor Tankless Water Heater is a Non-Condensing Gas Tankless Water Heater, which takes Liquid Propane as fuel. It advanced from its prior version in terms of 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 gas fired tank less heater for a medium to small home than this one is a match.

Features of Takagi Tankless Outdoor Propane Water Heater

Energy efficient and compliant to industry policies

At 21st century’s zeitgeist tankless heaters are concentrating more and more on energy efficiency as well as power efficiency. With gas input of 140,000 BTU Takagi saves lot of electricity. Takagi T-KJr2-OS-LP Outdoor Tankless Water Heater has a design that is certified by CSA according to ANSI Z21.10.3, which is required to be approved for sale in the United States. Have a 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 nitrozen oxide 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 by 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. First proportional gas valve heats up after sensing than the fan starts for running the exhaust, as it consumes minimal electricity at standby mode only 6.2 watt.

Smallest

Takagi T-KJr2-OS-LP Outdoor Tankless Water Heater is the smallest unit in 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 limitation.

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 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 degree F. Such temperature controlling powers says you need not to take the hassle of mixing the cold and hot water just select a constant temperature through the shower time.

Pros

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    Usable up to 6000 ft altitude
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    Copper heater for better efficiency
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    Easy trouble shooting through error code manual instruction
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    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 than solve it-

It is recommended to install at a place that is in middle of where all water application happens. This will guarantee the hot water; because the journey from heater to faucet water can cold down, this is true for all water heaters except for 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 temperature may be waned. 

Some reasons behind inadequate hot water is scarce gas supply, ajar gas supply valve, improperly positioned or mismatched sized of gas supply line. All these things can cause low gas and less hot water. These are not heater specific problem 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

Any water fixtures cannot function smoothly for a long period like 12 to 15 years with hard water condition. Takagi asks you to use this heater on water with pH level between 6.5 and 8.5. Water hardness palpably leads to scale formation and damage the water heater. This is why hard water needs to be treated before using this heater on it.

Frequently Asked Questions

Q-What are the warranty clauses
Ans- It gives warranty on residential usage for 12 year heat exchanger, 5 year on parts and 1 year on labor warning- installed by anyone other than licensed personnel or heater break down due to hard water condition will void the warranty.

Q-If I use it in indoor what vent requirement I need to follow?

Ans- First of all it is best to not install it at a place like attic where vent will be harnessed. Still if you want to use in inside home use the indoor heater. It shall be vented with 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 direct vent with optional direct vent conversion kit, 9007667005, using 3” diameter air intake pipe (PVC, ABS, aluminum, or Category III pipe and cannot exceed 50 ft).

Q-What size of gas, water line required and what are the Electricity requirements?

Ans- 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 purpose, needs proper ventilation facility for safety purpose and efficiency reasons. This version of Takagi is so popular they have 3 same type heaters with same features slightly different in terms of inside material positioning and indoor outdoor usages. 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 place and two bathroom homes in warmer place.

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