Overview
ENERGY STAR® qualified Takagi T-KJr2-IN-NG
The Pros & Cons of the Takagi T-KJr2-IN-NG
Pros
Cons
Installation and Specifications
The unit already contains a remote control and a comprehensive step-by-step guide for installation. You will have to run a category III vent pipe and single wall or PVC won’t work. The unit requires a 3/4inch gas fitting and you need to ensure that the gas supply is sufficient enough to feed the unit. The heater has a power vent, which automatically adjusts gas consumption as per the demand and makes expanded horizontal venting possible. You will need to install a black glow preventer into the vent pipe if you reside at an area where temperatures can drop below 20degrees F. Since the unit requires double wall stainless steel exhaust vent, the cost may get higher.
Specifications
| Assembled Depth | 6.7" |
| Assembled Height | 20.5" |
| Assembled Width | 13.8" |
| Product Depth | 6.7" |
| Product Height | 20.5" |
| Product Width | 13.8" |
| Vent diameter | 3" |
| Water Connection Size | 3/4" |
| Finish Family | White |
| Flow Rate @ 35 F Rise (gallons/min) | 3.4 gal (US)/min |
| Flow Rate @ 45 F Rise (gallons/min) | 4.2 gal |
| Fuel Type | Natural Gas/Propane |
| Gas Connection Size | 3/4" |
| Gas Product Type | Point of Use |
| Gas Type | Natural Gas |
| Indoor/Outdoor | Indoor |
| Maximum Temperature (F) | 140 |
| Minimum Activation Rate (psi) | 15 |
| Minimum Temperature (F) | 77 |
| Pilot Light | No |
| Point-Of-Use | Yes |
| Product Weight (lb.) | 33 lb |
| Residential/Commercial/industrial Use | Residential or commercial |
| Model | T-KJr2-IN-NG |
| Total BTU | 140000 |
| Water Connection Location | Bottom |
| Water Heater Features | Wall Mountable |
| Vent Type | Single Wall |
Common Problems
You need to be very careful while installing the unit because a minor flaw or mistake such as a lose connection can cause serious damage due to gas leakage. It is the smallest available gas tankless heater model and is more appropriate for small homes such as for a family of five. If you can afford the high installation cost due to involvement of a professional then go for this eco-friendly, compact and efficient water heating solution.
Conclusion
This is a good choice of a tankless water heater to buy as installation is quite easy and it has received great reviews as being a heater that can support the needs of a family of five as opposed to other tankless water heaters that do not perform so well if the hot water needs are high. As for being environmentally friendly, the heater complies with Ultra-Low NOx regulations of less than 14 ng/J (<20ppm).