Looking for advice for an outdoor greenhouse grow in cold climates.

[too larry]

Look up as much info as you can find about about diy and different commercial designs. Look into the passive systems used in especially hot and cold climates. Once you've read up on enough of the designs and methods out there you'll have a pretty good idea of just what you want.

I have done a fair amount of research. Plus my Mom always had greenhouses, so I kind of know what you need for this local. Windows and fans are a must. Very few days a year would it be buttoned up tight. Most of the year you will be trying to keep it cool.

I like how the hinged section of roof opens up to make a big vent in this greenhouse. I would want something like that.

 

[SchmoeJoe]

I have done a fair amount of research. Plus my Mom always had greenhouses, so I kind of know what you need for this local. Windows and fans are a must. Very few days a year would it be buttoned up tight. Most of the year you will be trying to keep it cool.

I like how the hinged section of roof opens up to make a big vent in this greenhouse. I would want something like that.

Look up the greenhouses from Ceres Greenhouse Solutions. They have one of the most efficient designs going and with their GAHT system they're able to run them from Alaska to the middle East.

Basically they use a pretty simple geothermal setup to cool the greenhouse is summer and warm it in winter. I know of a guy with an indoor here in Oregon that uses a culvert tube trenched 9' deep for an intake that starts 90' feet away from his shop that supplies 65°f air year round. There's also a guy in Nebraska whose able to grow citrus year round using a 6" pipe ducted out and back again.

 

[SchmoeJoe]

Look up the greenhouses from Ceres Greenhouse Solutions. They have one of the most efficient designs going and with their GAHT system they're able to run them from Alaska to the middle East.

Basically they use a pretty simple geothermal setup to cool the greenhouse is summer and warm it in winter. I know of a guy with an indoor here in Oregon that uses a culvert tube trenched 9' deep for an intake that starts 90' feet away from his shop that supplies 65°f air year round. There's also a guy in Nebraska whose able to grow citrus year round using a 6" pipe ducted out and back again.

Check the edit to my last post. I figured some extra info was a good idea.

 

[too larry]

Look up the greenhouses from Ceres Greenhouse Solutions. They have one of the most efficient designs going and with their GAHT system they're able to run them from Alaska to the middle East.

I'll check them out. Just searching on You Tube, I saw a lot more videos than the last time I was looking.

 

[too larry]

Check the edit to my last post. I figured some extra info was a good idea.

Geo thermal is a game changer. More up front cost, but big savings in the long run. I have an old backhoe. . . . . .

I've always wanted an underground house. Or at least a berm house. {the wife says she is done moving, so I guess I'll be living above ground for the foreseeable future}

 

[SchmoeJoe]

Geo thermal is a game changer. More up front cost, but big savings in the long run. I have an old backhoe. . . . . .

I've always wanted an underground house. Or at least a berm house. {the wife says she is done moving, so I guess I'll be living above ground for the foreseeable future}

The guy in Nebraska ran a six inch pipe 9 feet deep out and back in to the greenhouse with an inline fan on it. With s backhoe the effort is well worth the reward. If I only had a backhoe.

 

[Dmannn]

The guy in Nebraska ran a six inch pipe 9 feet deep out and back in to the greenhouse with an inline fan on it. With s backhoe the effort is well worth the reward. If I only had a backhoe.

There are houses in Utah and New Mexico that use large bored shafts under ground that circulate air all year around and keep the temp in the house's (earthship's) a stable room temp. They are really neat! There are all sorts of temp saving designs.

I wonder if you were to set up a double walled hoop house. And what befits that would have. Although Radiant heat would still be an issue, so maybe all white inside??

 

[SchmoeJoe]

There are houses in Utah and New Mexico that use large bored shafts under ground that circulate air all year around and keep the temp in the house's (earthship's) a stable room temp. They are really neat! There are all sorts of temp saving designs.

I wonder if you were to set up a double walled hoop house. And what befits that would have. Although Radiant heat would still be an issue, so maybe all white inside??

Double walled houses are used for insulation to keep winter temps up.

 

[SchmoeJoe]

There are houses in Utah and New Mexico that use large bored shafts under ground that circulate air all year around and keep the temp in the house's (earthship's) a stable room temp. They are really neat! There are all sorts of temp saving designs.

I wonder if you were to set up a double walled hoop house. And what befits that would have. Although Radiant heat would still be an issue, so maybe all white inside??

I've also seen houses that had lean to style greenhouses attached to them that used the greenhouse for winter heating. The more of the passive systems are used in a single design the more efficient the whole thing becomes.

 

[too larry]

Double walled houses are used for insulation to keep winter temps up.

In Florida the double wall is a big help with condensation. In my little 2x4 and poly single skin houses, it was always raining.

In my friend's greenhouses, the two layers of poly are kept apart with air pressure.

 

[SchmoeJoe]

In Florida the double wall is a big help with condensation. In my little 2x4 and poly single skin houses, it was always raining.

In my friend's greenhouses, the two layers of poly are kept apart with air pressure.

That makes sense. Since the inner wall of poly would have air of about the same temp on either side you'd never have any problrpr with condensation.

 

[too larry]

That makes sense. Since the inner wall of poly would have air of about the same temp on either side you'd never have any problrpr with condensation.

Yep. It runs down the inside of the outside layer of poly and goes on the ground instead of dropping on the plants.

 

[SchmoeJoe]

Yep. It runs down the inside of the outside layer of poly and goes on the ground instead of dropping on the plants.

That could even work as a semi passive way of dehumidifying.