How do I Install a Fireplace Thermostat? | Hunker Electric fireplaces have all the glow and comfort of traditional fireplaces, and a bonus. Owners don't have to deal with the mess and inconvenience of supplying firewood. An added feature is the ability to control the amount of heat the fireplace gives off. How to Install a Wall Switch to Gas Logs | Hunker Gas logs provide the warmth and beauty of a wood-burning fireplace without the work or mess. The fireplace uses natural or propane gas and synthetic logs to provide an attractive heat source. A thermostat, remote control or switch turns the flames on and off. Most gas fireplaces have a switch mounted in the front, under the fireplace. Installing A Fireplace Electrical Outlet Considerations For Fireplace Outlet Wiring Electrical Question: I added an electrical outlet above my fireplace and came across some concerns. First, there was a wire behind the fireplace that went to two separate outlets next to the fireplace – one on the left and one on the right. Two wire Thermostat for Fireplace - General Discussion I have a two-wire gas wall heater that functions the same as a two-wire fireplace. I use the CT-101 from Lowes. This thermostat works great for me! I’ve replaced the batteries twice in the last 14 months, and the current batteries are at 40%.