System for establishing wireless pairing between plurality of hot water supply device of hot water supply system

A hot water supply system, comprising:

• a plurality of hot water supply devices, comprising:
• a first hot water supply device, comprising:
• a first hot water supply wireless communication module, comprising a transceiver and a receiver;
• a second hot water supply device, comprising:
• a second hot water supply wireless communication module, comprising a transceiver and a receiver;
• wherein the plurality of hot water supply devices communicate with each other by a daisy chain connection,
• wherein the daisy chain connection is a wireless connection,
• wherein one hot water supply device among the plurality of hot water supply devices is configured to be paired with another hot water supply device among the plurality of hot water supply devices that is currently not paired with any of the plurality of hot water supply devices and has a highest received signal strength indicator value among the plurality of hot water supply devices.