美国亚马逊 Takagi T-H3-DV-N Condensing High Efficiency Natural Gas Indoor Tankless Water Heater, 10-Gallon Per Minute - - Amazon历史价格和网友评论,海淘商品名Takagi T-H3-DV-N Condensing High Efficiency Natural Gas Indoor Tankless Water Heater, 10-Gallon
while the outdoor models are ventless and come with a separate controller. Only the T-H3-DV-N and T-H3-OS-N use an Easy-Link or Multi-Unit controller to connect more units into one system and provide