T-KJR2-NG Takagi Jr. (Indoor) Natural Gas Tankless Water Heater
Released in 2010, the T-KJr2-IN and T-KJr2-OS is the smallest water heater in the Takagi tankless line. But this small, but powerful unit - with gas inputs up to 140,000 BTU per hour - can meet all the hot-water needs of a small American home or apartment with one or two bathrooms. Designed to virtually do anything a 40-gallon tank-type water heater can do and more, the compact, wall mounted T-K Jr. can support hydronic baseboard or radiant floor heating applications, as well as provide domestic hot water to plumbing fixtures and appliances. The T-K Jr. has an energy factor of 0.81-0.83. At an average (rise in temperature) of 60°F in warmer areas - where the winter ground water is 60°F and with the output set at 120°F - the unit will provide 3.8 GPM, or 228 GPH. In colder areas where the input temperature may be 40°F or less you can expect a flow rate of about 2.9 GPM or 174 GPH. The All new T-KJr2 has a max GPM of 6.6GPM.
Cost-efficient and environmentally friendly, the T-KJr2-IN can be converted into a direct-vent unit by using the optional TV10 conversion kit for installation in a garage, a utility closet or any confined space in which makeup air may be limited. Please refer to "Accessories" for more information on venting options.
Using the average of 60°F input water cited above, the T-K Jr. can provide enough hot water for one shower and a lavatory basin at a time; or one low-flow shower (2.5 GPM or less) and an appliance, such as a dishwasher or washing machine, at the same time. For much colder input temperatures, such as 40°F or lower, this unit can provide endless hot water for consecutive uses; that is, running only one major fixture at a time. Please refer to the flow charts for specific rates.
The four preset temperatures on the unit are: 113°F, 122°F, 131°F, 140°F. To achieve any temperatures other than those presets, your client will require the TK-RE02 temperature controller.
For Energy Star Certifications please follow Specification Sheets and Literature that is dated 2010 ONLY.
Natural Gas Input : Min. 19,500 Btu, Max. 140,000 Btu
Gas Connection: 3/4" NPT
Water Connection: 3/4" NPT
Natural Gas Pressure Inlet : Min. 5.0" W.C., Max. 10.5" W.C.
Weight: 33 lbs
Dimensions: 20.5" x 13.8" x 6.7"
Ignition: Electronic Ignition
Electrical Supply: AC 120V (60 Hz)
Water Pressure: Min. 15 psi Max. 150 psi
Natural Manifold Pressure: 2.0-2.5" W.C.
LP Manifold Pressure: 2.5-3.1" W.C.
Light Residential Usage:
Small home, condominium or apartment with one bathroom and possibly a dishwasher and a washing machine.