How to control a fireplace can be tricky and depends on the wiring you have at the switch location and if you can run new wire back to a controller.  There are five basic methods to control a Fireplace with Control4 (costs quoted are current hardware cost, does not include any programming or installation):

  1. Control4 Fireplace Switch – $129
    • Benefits – Allows the wall switch and programming to stay in sync. Works as you would expect it.
    • Prerequisites – Both 120vac and the Low Voltage Control cable to the fireplace at the Switch Location.
    • Limitations (assumed but not tested) – During a power outage you cannot turn on the fireplace.
  2. Card Access Relay – $129
    • Benefits – Allows programming control of the fireplace when a Control4 Fireplace Switch cannot be used. The fireplace (if equipped) can be used during a power outage.
    • Prerequisites – 120vac where the fireplace gas control valve is located – typically under the fireplace.
    • Limitations – There can be a situation when the wall switch is left on the Control4 system cannot turn the fireplace off. I feel this is the best setup with homeowner awareness.
  3. Card Access Relay and Contact Sensor – $278
    • Benefits – Allows programming control of the fireplace when a Control4 Fireplace Switch cannot be used. Allows the wall switch and programming to stay in sync. Works like a 3-way switch, depending on the timing of programming sequences, the wall switch may turn the fireplace off in either the up or down position of the switch.
    • Prerequisites – 120vac where the fireplace gas control valve is located – typically under the fireplace.
    • Limitations – During a power outage you cannot turn on the fireplace.
  4. Use the relay off the 800/300/IO-bar – (IO-Bar $399)
    • Benefits – Allows programming control of the fireplace when a Control4 Fireplace Switch cannot be used. The fireplace (if equipped) can be used during a power outage.
    • Prerequisites – Need to run a 22/4 wire or larger to the fireplace gas control valve is located – typically under the fireplace.
    • Limitations – There can be a situation when the wall switch is left on the Control4 system cannot turn the fireplace off. I feel this is the best setup with homeowner awareness.
  5. Use the relay and contact sensor on the 800/300/IO Bar – (IO-Bar $399)
    • Benefits – Allows programming control of the fireplace when a Control4 Fireplace Switch cannot be used. Allows the wall switch and programming to stay in sync. Works like a 3-way switch, depending on the timing of programming sequences, the wall switch may turn the fireplace off in either the up or down position of the switch.
    • Prerequisites – 120vac where the fireplace gas control valve is located – typically under the fireplace.
    • Limitations – During a power outage you need to determine if the Fireplace is on or off. I use this method as most of our power outages are in the fall and I want the fireplace for heating anyways.