You guys that have posted to this thread have made me proud! I encourage everyone out there to incorporate any one of these great mods as a supplemental fire detection system, as well as to ensure that your primary detection systems are properly working with good batteries.
My dad was a full time firefighter, and he always stressed safety and early detection/evacuation in a home fire. My brothers are firefighters. I am a firefighter. My son is a firefighter. Anything that makes us safer is a good thing.
I'm just tickled that so many people share my enthusiasm for interfacing smoke detection into your X10 system.
Keep up the good work, and I challenge every one of you to come up with new and better mods.
PS.
Don't rely on these things to save you from a fire.