peachguy wrote:Durgan I was wondering how that greenhouse you have in the last pic. is doing for you. Is it holding up well, do you heat it all year round or keep any tropicals in it. I have been looking at that greenhouse but I do have a quite a few tropicals to over winter so it needs to be heated most of the year.
I only use it for March, April and May mostly for the light. I heat it with Natural Gas 6000 BTU so I can go down to about minus 10C, and possible even lower. When the sun shines, the grenhouse it gets very hot, so often the door is open during the day as is the roof vent. If some plants get too close to the outer wall on a very cold night the leaves may get a touch of frost. I am in Zone 5 so freezing is much more likely than in Vancouver. Mine is only 6 by 8, I think some similar are slightly larger.
The unit is very strong and if you modify it slightly with a door jam support, it can be improved. I screwed the base to 2 by 4's and anchored to railway ties, so it is easy to move around if necessary. It has stood up to some very strong winds with no problem for three years. It must be anchored securely.
The problem I encountered was the door flew open and the wind beat it for about 2 hours before I became aware. To improve insulation one could line the bottom three feet inside with foam rather easily.
The price was about 750 and I had it for three years. This one is probably a good bang for the buck. There are all kinds of possibilities, and to choose is very difficult. It is relatively easy to make one of your own design. Many of the home commercial ones concentrate on beauty at the expense of practicability.