Hydronic heating pad

A hydronic heating pad, comprising:

• a control unit, the control unit comprising a water reservoir tank, a heating pipe, an outlet pipe, and at least one return pipe;
• and
• a blanket pad connected to the control unit, and the blanket pad comprising a warm water region;
• wherein:
• the heating pipe, the outlet pipe, and the at least one return pipe are disposed on the water reservoir tank;
• the outlet pipe and the at least one return pipe extend into the warm water region, whereby the outlet pipe, the at least one return pipe, and the warm water region form a circulating water channel;
• the outlet pipe is provided with a water pump;
• the at least one return pipe is provided with a solenoid valve with controlled opening/closing based on preset values of water temperature in the return pipe;
• and
• the blanket pad comprises at least two layers of waterproof fabrics;
• the warm water region is a hermetic region on the blanket pad and comprises a plurality of first polygon patterns;
• a plurality of water passages is formed between the plurality of first polygon patterns;
• a plurality of partitions is disposed in part of the plurality of water passages to divide the water passages into a plurality of sub-passages.