Thanks to all for input.
1nolaguy, I'll be interested to hear any info you find. I'll cross the Furions off my list.
Howard, I've got a 13500 dometic in the bedroom. Kept it nice and cool til it stopped working.
Wondering if your 15k causes the unit to cycle on and off too frequently due to small room? I am looking to upgrade the 13500 in the living room to 15k since that unit struggles, but thought I'd keep a 13500 in the bedroom. Your thoughts?
I'll call Rec Pro and my installer about the furnace function(I only have one propane furnace ducted throughout, controlled by front thermostat.) as I want the front unit also and will report what I'm told.