DaveW02

NEVER ditch that Flobee!

Just get a timer plug. Start the plug then start the heater. Getting it to turn off is easy. But turning ON then OFF is going to take some HA with relays or solenoids because of the mechanical switch requirement. Be simpler to just buy new heater with built-in timer.

What do you mean "generic sensors". Give the brand and model of the cameras.

Well the good news is they are pretty cheap.

Not a firefighter, but seem like you would be feeding fresh air to the fire.

Disconnect bell wire wire from transformer and measure voltage at the screw terminals. Should be 24VAC. If nothing, internal fuse link in transformer is open. Transformer is toast.

Are you trying to mechanically toggle the fireplace switch? That's going to be a though and probably unreliable. Can you mount a low voltage relay (like 12VDC) next to the fireplace switch (as you have pointed out the thermocouple only puts out a few millivolts) and use a WiFi switch powering a 12V DC power adaptor to energize the relay? Just a thought.

Try rebooting the router.

I have used Homeseer since HS2. My rebuttal to your rant follows:

Can be fully autonomous. No connection to internet

https://homeseer.com/

Outside of Alexa and Google voice control.

I have had same problem with Alexa asking "which one" with Homeseer. Used to work, then suddenly did not. It seemed like after a couple of repeats the problem cleared. Alexa learns from mistakes. I don't know why she suddenly got confused.

The sensors (window, motion, and remotes) are all RF at around 310mHz which are not susceptible to power line noise. But X10 was known for RF range problems. The plugin modules for lights, alarms, appliance modules, etc are susceptible to power line noise . You may need additional repeater (XPCR) and line filters (XPPF and XPF) to get powerline signal to the light and appliance modules and the plugin "powerhorns". If you have a small place like a small apartment, X10 might serve you well, but a 2000sq ft home, expect to throw more money at it to get it to work reliably. X10 user since 1979 before there was anything else.