We had mid 20 degree temps, and were able to easily, and I mean EASILY keep the mh at 70's.
We did make a couple added mods to the above - and I'll post pics soon. (why do I keep forgetting to take pics in the wild?)
- reflectix slipped under the curtains in the bedroom windows.
- pillow stuffed in bedroom vent
- reflectix stuffed in bathroom vent
- also added a second vornado (previous test was one vornado and one 'milkhouse' space heater)
The result was IMMEDIATELY noticed. DW commented "it doesn't feel drafty anymore".
As i said, the outside temp ranged from high teens to low 30s. I had to actually TURN DOWN the space heaters just so the furnace would periodically kick on to circulate the air underneath.
Temp reading - lowest was 71, highest was 78. Didn't sleep in long underwear. Didn't freeze my head off from cold air coming in the bedroom window.
Next - getting me a couple "pool noodles" to insulate the slides!
pics to come