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Quick History

In 1963 Takagi Takagi developed  an automated ignition an automatic ignition system for a gas water heater.  This was followed in 1970 with a revolutionary automatic gas control valve system. Takagi Industrial developed a computer modulating gas valve and safety system for its tank-less water heaters 1980 which was followed by a microchip controlled gas water heater in 1982. These and following milestones set by Takagi were major milestones within the tankless hot water industry.

The thermal efficiency of the Flash T-K2 is over 85% using natural gas and 86% on propane gas with low Nox emission to meet AQMD (Air Quality Management District) regulation.

Because Takagi demand hot water heaters are able to vary heat based they can be used with water pre-warmed by solar hot water heating.  Variable heat also provides the advantage of more consistent heat , less affected by water flow fluctuations.

Flash T-K2

Natural Gas Input

Min. 20,000 Btu

Max. 185,000 Btu

LPG Input

Min. 19,000 Btu

Max. 175,000 Btu

Gas Connection

3/4" NPT

 

Water Connections

3/4" NPT

 

Water Pressure

Min. 15 psi

Max. 150 psi

Natural Gas Pressure Inlet

Min. 5" WC

Max. 11" WC

LP Gas Pressure Inlet

Min. 11" WC

Max. 14" WC

Manifold Pressure

Natural 2.3" WC

Propane 2.5" WC

Weight

60 lbs.

 

24.5" x 16.5" x 8.3"

Electronic Ignition

 

AC 120 V

 

 

Dimensions

 

 

Ignition

 

 

Electrical Supply

 

 

Product Comparisons

Model

FLASH T-K Jr.

FLASH T-KD20

FLASH T-K2

FLASH T-K1S

MOBIUS T-M1

BTU Max (NG) BTU

140,000

185,000  

185,000

190,000  

235,000

BTU Min (NG) BTU

19,500

20,000  

20,000

15,000  

25,000

Flow Rating (GPM)

0.75 - 5.8

0.75 - 6.9

0.75 - 6.9

0.75 - 7.2

0.75 - 9.6

First Hour gallons/hour

181

240

240

245

300

Rating gallons/minute

3.0

4.0

4.0

4.1

5.0

(DOE)

(77F rising)

(77F rising)

(77F rising)

(77F rising)

(77F rising)

Net Weight (lbs.)

 30

 60

60.

46.

70.

Energy Factor

NG 0.81
LP 0.81

NG 0.81
LP 0.84

NG 0.83
LP 0.84

NG 0.85
LP 0.87

NG 0.81
LP 0.82

Dimensions HxWxD

20.0" 14.0" 6.0"

24.0" 18.0" 9.0"

24.0" 18.0" 9.0"

24.5" 16.5" 8.3"

24.0" 18.0" 9.0"

Thermal

Natural: 83%

Natural: 82

Natural: 85

Natural: 85%

Natural: 82.3%\

Efficiency

LP: 84%

LP: 83%

LP: 86%

LP: 87%

LP: 84.7%

 

Model

Input (Btu)

Efficiency

GPM Flow Rate @ 55F rise

Vent Type

Vent Size

Ignition System

Activation Flow in GPM

Heat Exchanger Warranty

T-K Jr.

140,000

84%

4.2

Forced

4"

Electronic

0.75 GPM

7 Years

T-K2

185,000

86%

5.7

T-KD20

83%

5.7

Direct

T-K1S

190,000

87%

5.7

Forced

 Link to Takagi web site

Home Up Products Saving Energy Glossary Contents About / Contact

 

Contact Us: Telephone:  toll free at 1-888-810-4709 Parry Sound,Northern Ontario,Muskoka and Georgian Bay
Send mail to:info@stratenergy.ca  with questions or comments about our product or web site.

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Last modified: April 10, 2017