Summary of below message:

Why is the %RH so high in the carpentry? Do the
sawdust bind the humidity or something like
that? Anyway it is a complete disaster to work
there now; I can only be active for like 10-15m
before I have to get inside to recover. I can
feel literally how my mental/physical health
deteriorates every minute I'm there!


preassure
tempC %RH mb/hPa insulation feeling heat
--------------------------------------------------------------
studio 20.9 21 OK comfy 3 oil
carpentry 6.0 59 1003 poor sickening 1 fan
bakery 5 poor OK 1 oil
bike WS 1 none OK none


Here in the studio, where I have 3 oil heaters,
it is now 20.9C with 21%RH which is pretty
comfy. Most areas still have a coldish touch,
tho much less so than before when outdoor
temperature was some -10 to -15C (now its -1 or
0C).

In the carpentry, which is in the same wood
building but it has a lesser degree of
insulation, and also instead of the three oil
heaters only a single heat fan, it is
6.0C and 59%RH with 1003 mb/hPa. Here, it is
extreamly unpleasant - I cut a plank and filed
it with power tools in 10m or so and still
reacted very negatively with coldness and
coughing my brains out until I got out.

Bakery: 5C with one oil heater; insulation poor.

Bike workshop: 1C with no insulation, and next
to the front door which is opened all the time,
including to access the carpentry.

Both bakery and bike workshop are not
unpleasant to work in, tho fiddling with cold
tools quickly makes your hands cold
like instantly.

--
underground experts united
http://user.it.uu.se/~embe8573