I have one in my HFGH. My house is set up for starting bedding plants so I have shelves along each side so it doesn't get in the way for me. You can see my original installation in the pictures I posted a few weeks ago in the thread about my construction and north wall insulation here http://forums2.gardenweb.com/forums/load/strucs/msg121339449284.html?8 I had problems getting it adjusted so that it would open and close at a higher temp so I have since added an aluminum angle, attached a redwood 2x4 block to the aluminum angle and attached the univent to it. It works much better that way. I'll try to take a picture and post it this weekend.

Hi Dave, I have the HFGH 10x12, and the part numbers do vary from your 6x8, but I believe the corner posts fit together into the frame the same way. Here's a link to the part of my blog that shows photos of my framework going up. Scroll down a bit to see some close up pics of the corner posts, and maybe you can see from my pictures what you need to know. Part Three, Assembling Greenhouse Walls Sometimes the pieces in the HFGH kit don't go together the way you think they would, intuitively (one reason we wrote a blog to help folks with the awful HFGH manual.) It's very confusing. However, I have yet to hear of a single case where the kit parts have been miss-drilled, if that's of any comfort. If the photos in my blog don't help, post back and I can take more pics of my greenhouse, but I'm hoping you'll find some help in the blog pictures.

Hi again,,,well, We decided to buy a different greenhouse instead of messing with the hfgh,,,I decided it was not going to be big enough. We purchased a 17 x 32 gothic style greenhouse from Griffins. I have had 2 of their models in the past when I had a greenhouse business. I had the 17x48, 2 of them. I don't need one that big, so I went with the smaller one this time. I am going to sell plants on the weekends. I have thousands of seeds started right now in the basement under growlights.

Great pictures! Fortunately, the tree in our way died about a year before we put up our greenhouse (still had to cut it down, though!) We had a furry OSHA inspector too (all extra paws and hands were greatly appreciated.) I love my 10x12 HFGH, enjoying it for my third year. It's totally stuffed with plants, year round. "- We will add more clips to prevent the panels from flying off in the wind - a major concern." Sounds like you've read the archived threads here about the recurring problem of lost HFGH panels. In addition to extra clips (we did that too) it's pretty easy to add self-tapping screws to the panels, as even more protection against panel loss. The 10x12 is pretty tall and makes an even worse target for wind damage, but there are some scary threads archived here about wind-damaged 6x8 HFGHs as well. Here are some photos showing how we screwed the panels into the aluminum frame (thanks to previous GardenWeb forum members who suggested this improvement.) Part Six, Adding the Panels "- Depending on the temperatures, may add a blind on the western end to prevent sunburn and excessive late afternoon heat." I definately need shadecloth on the roof, west end, and south side (my succulents and cacti cook in there without it.) I also believe that adding shadecloth has helped to increase the lifespan of my HFGH panels in our sunny climate. (I used Aluminet shadecloth.) Some GardenWeb HFGH owners have reported problems with the HFGH panels deteriorating after exposure to sun, but others don't seem to have this problem. My panels have yellowed, but I see no other signs of deterioration (fingers crossed.) "In winter, may add water jugs as heat sinks in cooler weather." In theory it seems like this would help, but the general consensus seems to be that you'd need very large containers of water to retain enough heat to truly benefit you into the wee hours of a cold morning. Most small greenhouses can't afford to give up the high percentage of space required to make this work, but there's lots of good reading on this topic in this forum (posted by folks who are much smarter than I am.) "- Wish list: shelves, solar fan, temperature activated window control" Just a warning, the HFGH solar fan is not powerful enough to adequately cool your greenhouse (sounds good, but doesn't quite work.) If you do a search in this forum for HFGH solar fan, there's a thread with a knowledgeable poster sharing his calculations that a 6x8 HFGH would need three of the HFGH solar fans to exchange enough air to drop the temps (if my memory is right.) There are also some posts from folks saying the HFGH vent openers don't last long at all, and it's best to research and purchase other brands that have a better track record. Good job, congratulations, and happy greenhousing! Sheri