To all you naysayers to the rdome.

We were out camping for 4 days, middle of october, night temp around 0* Celcius, daytime temp single digits, so you want a place to warm up. No chance with an awning, but the r-dome is enclosed, so I put in my little LP heater with my Eco Fan on top, opened the trailer door and within 5 min the r-dome and the trailer are warm (about 20* C). I would not trade my dome for any kind of awning. After all we live north of the 49th.

+1 , marwayne! We love our dome! Easy to keep warm at below freezing temps!

We got the dome with our 12 model 172 and have not had the chance to put it up yet, but by golly next summer its going up one way or the other.

The nice part about the fan is, when it sits on the heater it produces it's own electricity.

The cool thing about thermoelectric pumps (Peltier junctions - same thing used in the Coleman thermoelectric coolers to heat/cool) is if you drive them backwards they will produce some electricity.  Supply electric and you get heat on one side and cold on the other, as long as you heat sink one side.  Put heat on one side and the same heat sink on the other (the big black fins on top in that picture) and you get the energy to run that fan.

Recently I saw a woodburning camp stove which does the same thing to drive a fan which blows fresh air into the burning chamber.  As an added bonus it has a plug where you can charge your cell phone in the middle of nowhere.  As long as the fire is going.