“This single-zone relay is exactly what was needed to install a Wi-Fi thermostat to my hydronic radiant floor. Previously, the radiant floor ran off a timer, but now I can control the temperature from my cellphone.”
“I used this to connect 6 zones to three thermostats. It looks great and does a fantastic job. The best part for me is that I don't trust the previous installation, but this allows me to simply move jumper wires around to change which thermostats control which zones.”
