I'm in a similar situation myself, except I'm in NE KS and winter temps avg
1) insulate walls and ceilings. If need be, shrink your working space with
a divider wall to lessen what you need to heat/cool.
2) weatherstrip and install insulated garage doors or glue on some styrofoam
panels (ensure the door fits snug to the casing, in my old shop I wedged a
2x4 at the top to keep the top tight to the casing ( I did not have an auto
3) Fine WW or HB did suggested a PTAC (google that). It's the heat/cooling
units used in hotels. Wall mounted units. New can be had for $650ish. All
4) turn down the temps to 40-45ish when you are not there (a thermostat
would be good). I find 55 or so is pretty comfortable when I'm active in
the shop -- just enough to keep the hands warm.
5) gas heaters can be had on the used market for <$200. If you have gas
available (dont have to run much line), it might be the way to go.
6) Wear layers - tshirt, turtleneck, light jacket. Tight fitting -- to
impress the ladies -- they like men with 10 fingers.
7) seal up any cracks -- keeps heat in, bugs out. My expansion crack in the
slap extends to the outside. I have a 3/16ths wide opening to the outside,
that lady bugs line up at in the fall. I got some concrete crack filler
So here's my situation..
My shop is insulated -- I think -- bought the place used. Drywalled
throughout. Of the 24x36, 12x24 is walled off into a seperate room with 4
windows - 1 east, 2 south, 1 west. There's a 4000 watt electric heater w/
blower. I'm using this space as my office. I should have an electric bill
in 2 weeks and will know if I need a 2nd job to support my 1st one.
Actually, I'm thinking I need to cut to fit some 1.5" styrofoam (the pink
stuff) to fit 2 or 3 of the windows. I'll leave the south ones open on
sunny days, but the east and west are just loosing heat. The other side,
24x24 is my shop. It's on the north side with 2 garage doors facing north.
It's insulated and the doors are insulated. I'm hoping it stays > 35 most
of the time, but we'll see. Since my office is next door, my thought is to
swing open the adjoing door when I need a bit more heat. We'll see how that
theory works out. I have 20ac of woods, so a woodstove on the used market
might be what I need. It would give me a 3rd heat source as well for when
our electric goes out around these remote parts.