General Discussion Undecided where to post - do it here. |
Reply to Thread New Thread |
![]() |
#1 |
|
I have been very busy lately taking out the plants from the greenhouse to the house and trying to sell many of them. Many more will probably die for lack of place in the house.
I simply can't afford to heat the greenhouse anymore. Way too expansive for me. All my efforts to conserve energy have been thwarted by the ever rising cost of heating, and it won't get any better in the future. From now on, I plan to use the g/h to store hardy plants like rhododendrons, cyps, small trees, roses and so on. With a good covering of hay on the plants, I may be able to keep zone 6-7 plants alive for the winter without heating. All intermediate temps plants are moving inside the house under high intensity lamps and fluorescents. At least the heat generated by the lamps will help heat the house. Like the Borgs say in S-T. I will adapt! ![]() But not without some pain. |
![]() |
![]() |
#5 |
|
|
![]() |
![]() |
#8 |
|
sorry to see... had you tried the large drums of water underneath the benches to help conserve heat? also heat blankets over the plants/under the roof?
I also suffer from 'indoor orchid' situations... would be much easier to use a hose like I do at work also spraying for things, but in my apt I have to catch all water underneath, use an aquarium pump to pump/drain back into a bucket and carry to the toilet. If you had a spot where you could use a portable pump and pump your rainwater upstairs through a garden hose, you could eliminate carrying upstairs (though I understand the need for exercise! ![]() |
![]() |
![]() |
#10 |
|
big plants would be nice, have a big house but you are on the other side of the world.
I can feel with you, had the same problems with energy. Changed now with heating on Solar pannels, on sunny days even at - 24 outside it helps to heat the house, reduced my consumption of oil I had from 5000 liter to under 2000 the last winter. No they have combined ones with heating the water and producing electric power. |
![]() |
![]() |
#11 |
|
|
![]() |
![]() |
#12 |
|
I grow in two very different environments. In Australia my greenhouse is in an inland Mediterranean type climate with summer temps often over 40C and winter lows down to -4.
A couple of years ago I installed an earth heat exchange system EHE(a fancy name for a buried pipe). I installed this system with the intention of using the cool earth at 3 metres deep to cool the greenhouse but have found that the almost constant temp coming from the EHE allows me to warm the greenhouse in Winter. With a completely insulated Southern side of the greenhouse and huge amount of thermal mass (6000 litres of water) I no longer need extra heating or cooling. In winter a fan draws air into the greenhouse and in summer a solar chimney draws in the cooling air. I understand that your winters are many times more extreme than mine but the same principle has been used in Alaska. The link below relates to a very basic system in a climate very similar to yours. http://flashweb.com/blog/2008/09/earth-air-tubes.html http://en.wikipedia.org/wiki/Ground-...heat_exchanger |
![]() |
![]() |
#16 |
|
|
![]() |
![]() |
#18 |
|
What attempts are you making to store heat? Do you have large (sealed) barrels of water in the green house under the benches to hold heat? The problem with a big empty green house is that air doesn't hold warmth very well. Unless you fill the g/h with something with a high heat capacity (i.e. which can hold heat) the g/h very quickly bleeds heat. Also, if you haven't properly double-glazed the root and sides then the heat escapes all the faster. If you are using glass then the problem is all the worse as glass is an excellent conductor of heat. You want to be using polycarbonate or something similar with at least a 1 inch gap between the two sheets.
|
![]() |
![]() |
#19 |
|
The glazing is polycarbonate on an aluminium frame, Tyrone, but I would have done better to construct my own wooden frame and bought the poly separately and put more space in between. I've learned a lot about greenhouse construction and if I could afford to build another one, it would be considerably better.
![]() |
![]() |
![]() |
#20 |
|
|
![]() |
Reply to Thread New Thread |
Currently Active Users Viewing This Thread: 4 (0 members and 4 guests) | |
|