Gas Fireplace Basics | DIY A gas fireplace can also have a heat-zone system that delivers heat from the fireplace into the adjoining room via the only floor supply register in the house, which is positioned under a window. So one fireplace (gas) is heating two rooms at one time. Connecting my gas fireplace - Connected Things May 21, 2014Connecting my gas fireplace. Devices & Integrations. Connected Things. chrisb (Chrisb) May 21, 2014, 4:04am #1. Success! I just finished wiring up my gas fireplace to SmartThings tonight. My fireplace as a small on/off switch on the side which is basically just a contact switch. Complete the connect and the fireplace goes on.Support · Uses Related searches for gas fireplace wiring explain wiring a gas fireplacegas fireplace wiring diagramgas fireplace switch wiringgas fireplace diagramsgas fireplace wall switch wiringgas fireplace thermostat wiring diagramgas fireplace electric starter wiringgas fireplace parts diagram