While I was in the Power Panel fishing wires for installation of my Reverse Osmosis System (I'll post it in Mods when finished next weekend), I was wedged in the upper utility basement to retrieve a set of wires. Of course, handy camera in hand, I took a few pictures of the power converter, furnace, back of the panel, AND ONE ASPECT PICTURE OF THE ALPINE BASEMENT HEATING SYSTEM!
First, this is an early build 2011 Alpine 3640RL (built May/June 2010), so yours might be different. There was an access hole between the upper and lower utility basements. So, with camera strapped to my hand, I stuck the hand and the camera through the access hole and took the attached picture! Notice that the basement heat, in this case, is a T-box attached to the 2.5" (6.35cm) heating duct. The open T juncture is basically pointed "sort of" at the valve assembly of the kitchen gray water tank (I've been able to figure this out, the kitchen gray is right next to the black and across from the bath gray). The outflow is not controlled by a louvered vent, and the duct continues on to the black water valve.
There has been so much spectulation and questioning about the Alpine basement heating system . . . I do not believe any of the tanks are wrapped, and I'm not sure what insulation besides the Keystone Radiant Barrier (aluminum coated small bubble wrap) shields the tank from the corregated plastic under-sheath. Maybe Mel might know????
The "black ringed hose" you see in the picture is the basement forced air heating system (own design) I installed and described in the Modifications topic area of this Forum.
Any comments on the basement heating?
Ron