Paradise ponders: first air and fallen kittens edition... I made good progress on my temperature moderation project yesterday. The first photo below shows the door (a hatch, really) for the plenum box I finished yesterday, and the next photo shows it installed, with chest latches holding it in place. The last photo shows the completed plenum box, with the flexible duct leading up to the boot (and on the other side, the grill for first floor air to get into my office). When I light it off, I can't hear the fan at all – wonderful! Last night I left the fan going all night with the second-floor heater turned off. When I checked it out this morning, my office temperature was 64°F, same as my first floor. That wasn't really much of a test, though, as the coldest it got outside was 55°F! :) Tomorrow night it's forecast to get down to 20°F – that will be a real test!