| 摘要 |
<p>The heat pump for heating a room heater is also connected with a boilder for a hot water supply. The hot water for the room heater passes through supply and return lines through the heat exchanger coil in the tank, and through an external tank. This tank contains a heat exchange coil connected at the top to a pump and to a pipe connected to the bottom of the hot water tank. The bottom end of this coil is connected to the top of the hot water tank.</p> |
