Hot answers tagged switch
You could leave the switch as-is but then install one of various types of switch guards to prevent accidental switch setting changes. Here are a few examples...
1) Not necessarily; depends on local codes. NYC code circa 2008 required it, and as a result I have one. 2c) 'It is fine as it is'. You can put some tape over the switch to discourage people from whacking it in the dark if you need to, and you can change the faceplate to indicate that it is now a 'Gas Burner Emergency Shutdown Switch'
You can't. You don't have enough conductors between the switches. It takes 2 "hot" traveler wires plus a neutral and a ground to do a single 3-way "traveler" circuit; that's 4 wires total. The neutral and ground can be shared between multiple devices, so to do what you want you need 2 more traveler wires for the other device (fan).
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