The birds don't seem to mind a bit. In fact they probably enjoy the additional heat. I used to keep it 40F in there all winter. Now it's in the mid-high 60s.
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pics please
Grow op too moist? [Coffee] <just kidding>
Interior tenting? Window venting seems easiest but then there is temp control. How to minimize moister in the system?
A/C only unit tied to a humidistat to control humidity and a A/C- Heat unit to control the climate or look at a pool dehumidifier
as a example https://www.dehumidifiercorp.com/vertical-dehumidifiers
I'm trying this:
Attachment 73498
It ain't pretty. Just an $18.00 50 CFM bathroom fan, a 3" elbow, some scrap wood and an old pillow to fill the gap. If it works out, I'll do a more finished job on it all.
I've had this running for about 24 hours - got it running late last night. The fan ran 1/2 hour on/off all night last night with no space heater on. The temp dipped to about 57F when I checked this morning and there was still quite a bit of moisture on the windows. I expected a temp drop but was a bit disappointed with the moisture. I left it all day today and lo and behold, I went in there late afternoon and the windows were completely free of any moisture. Of course daylight helped, but it is a huge improvement. There used to be heavy moisture 24/7.
Tonight I set the timer for the vent to be on 1/2 hour every hour and a half instead of on/off every half hour. Plus I set the space heater to go on for a half hour when the vent is off during the "reduced rates" times from the elec. company. We'll see how this works.
It'll take some tinkering but I think I can get this to work. If not, you'll hear about it.
Go HERE and you'll find all of my videos on this stuff.
Today was pretty warm (at least down here). I'd be interested in how much the temp drops if you don't run a heater at all, just to see what the difference is. If the birds were used to colder, then you may not need to heat at all.
Wulf202 turned me onto a Wyoming homestead channel today. I checked out some videos and they are gardening in the winter, in soil, in an unheated green house. Might be interesting to check out, even if it doesn't translate completely to what you're doing.