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Takagi T-KD20 Tankless Hot Water Heater Direct Vent On Demand Hot Water Heaters - fueled by Natural Gas or Propane The Takagi T-KD20 has been replaced by the Takagi T-K3 T-KD20 Water Heater Takagi T-KD20 Direct Vent Tankless Water Heater that pulls air for combustion from outside. This unit is designed for residential, commercial and on-demand water heating and hydronic heating applications. The T-KD20 water heater is a tankless water heater that delivers up to 6.9 gallons of hot water continuously. The computer modulated burners use only the gas required to heat the water required - without wasting any gas. The T-KD20 has an electric ignition and uses no energy when not producing hot water. The T-KD20 water heater is capable of handling water flows ranging from 0.75 to 6.9 gallons per minute, with heating capability of 19,000 to 185,000 btu. The Takagi Flash T-KD20 water heater has the widest range on the market, all controlled by a computer board and sensors checking for flow, temperature and demand. The Direct Vent T-KD20 uses stainless steel 4-inch vent for the exhaust and a 3-inch vent for the intake air. Would you like to use a Takagi T-KD20 as a heat source? Click here for more info.

4" Venting TKD20 Vent Accessories T-KD20 Tech & Specs Vertical Vent Diagram T-KD20 Indirect Water Heater and Heating Applications T-KD20 Warranty How to Recirculate Domestic Hot Water Webstone Isolator EXP Union Connectors