|
in:
|
|
| Forums > Marijuana Growing > Growing in Greenhouses > How do you ventilate a hoophouse in cold weather? | ||
Post Reply  |
| How do you ventilate a hoophouse in cold weather? | Thread Tools | Search this Thread |
10-26-2016, 07:07 PM
|
#1 |
|
Senior Member
Join Date: Mar 2016
Posts: 1,394
  |
How do you ventilate a hoophouse in cold weather?
I've never grown in a greenhouse, or indoor, or in winter but I'd like to try so I'm setting up a small hoophouse (10x16 or so) with one 1000w somewhere in there on an 8x8 test area for heat and to see the difference in yield/quality. I'm in N cal foothills. If I can get the greenhouse set up by mid-Nov, I'll veg for a month and finish in mid Feb.
My question is, for a winter hoop, I'll be keeping the plastic on all the time, so how do I keep it warm while avoiding high humidity and creating enough airflow? Do I just need lots of airflow and lots of heating to compensate for the fresh cold air? Can I just leave the bottom open, or vent it at the top? Any other advice would be appreciated. Like ideal pot size, type of heating, etc. Was also thinking of double layering the hoop plastic. |
|
1 members found this post helpful. |
|
10-26-2016, 07:20 PM
|
#2 |
|
Senior Member
Join Date: Sep 2016
Location: Oregon
Posts: 1,116
|
I have a 18x20+ green house that i plan to run through winter if possable. I have a humidity/temp gage from wall mart . funny thing i noticed is i get my highes humidity in the middle of the night 65% to 80% . i use a passive intake 20'×6" along the one side of green house with a open vent on one side right at the top that is 2'×2' it creats a nice natural air flow but i still get peaks of high humity when temperature is at it lowest . so i plan to run a small 900 watt heater for the 4 hour high humity time period and see if it will restore the natural ventingand bring temps to a acceptable range at night. I will let you know how it works out . atleast i wont be the only one trying to run a all season green house .
|
|
|
1 members found this post helpful. |
|
10-27-2016, 01:34 AM
|
#3 |
|
Newbie
Join Date: Oct 2016
Posts: 26
|
|
|
|
1 members found this post helpful. |
|
10-27-2016, 02:15 AM
|
#4 |
|
Cave Dweller
Join Date: Oct 2007
Posts: 6,023
 |
I don't have any info to offer at this time but would like to learn more.
Subbed 
|
|
|
2 members found this post helpful. |
|
10-27-2016, 08:15 AM
|
#5 |
|
Senior Member
Join Date: Mar 2016
Posts: 1,394
|
Dankwolf, keep me updated. Thanks.
Jay, i have the 70 pint version. So I guess I'll need to throw that in there. It generates a little heat so I'll still need a heater. Not sure if passive ventilation is enough either. Who dat, let me know if you figure anything out. |
|
|
|
|
10-27-2016, 09:14 AM
|
#6 |
|
Frequent Flyer
Join Date: Nov 2011
Location: ~ In The Garden Pulling Weeds ~
Posts: 3,223
|
Build a rocket mass heater and vent with fans when the humidity gets to high or it gets to warm.
Easy to build and cheap to use. |
|
|
3 members found this post helpful. |
|
10-27-2016, 04:34 PM
|
#7 | |
|
Newbie
Join Date: Oct 2016
Posts: 26
|
Quote:
|
|
|
|
|
|
10-27-2016, 04:38 PM
|
#8 |
|
Frequent Flyer
Join Date: Nov 2011
Location: ~ In The Garden Pulling Weeds ~
Posts: 3,223
|
It is better to feed it once a day. Let the thermal mass do the work. If you have enough thermal mass you shouldn't have to have more than two fires in 24 hours.
|
|
|
|
|
10-27-2016, 04:39 PM
|
#9 |
|
Caregiver Extraordinaire
  
Join Date: Apr 2010
Posts: 8,085
|
an exhaust fan or 2 on a thermostat would do i think; i use the cheapo art dne thermostats - work well for me
|
|
|
1 members found this post helpful. |
|
10-27-2016, 04:58 PM
|
#10 |
|
More hash tea...
Join Date: Apr 2014
Location: land of hummingbirds and turtles
Posts: 1,818
|
Spent a few minutes on a permaculture site looking at rocket mass heaters, was an education.
__________________
That which matters most |
|
|
|
| Post Reply |
«
Previous Thread
|
Next Thread
»
|
|
All times are GMT +2. The time now is 04:33 PM.
