Hi Blackthorn Sorry about the technical stuff, it is important to quantify the various heatloss, gain, storage and resistance values, otherwise...
Hi Dave I`m still not sure if the sun facing side of the wall is inside the greenhouse [img]Painting them black for summer is probably not a...
Hi Dave,I don`t think a computer fan would have enough airflow unless it was a very small greenhouse.Imagine how much air a computer fan moves...
Hi Peter I think insulation and airleaks should take priority as they will give the best returns for minimal effort [img]Thermal mass works...
If you calculate how much heatloss to expect on the coldest day you can size the thermal mass accordingly. Bear in mind you will have to "charge"...
I think all points are equally valid.The real question is why we need the ventilation in the first place.For paraffin heaters it`s...
The 70`s was a great decade for "green" ideas, which don`t seem quite so wacky now we have pretty much a throwaway society and the odd climate...
I agree entirely. I do think we should explore alternative ways of making the best use of resources though instead of just throwing more at it...
Hi HornbeamThe light issues are quite a problemThe bubblewrap by itself isn`t a good insulator but then neither is 12" thick polystyrene if...
Winter light is terrible compared to the excess in summer but the diffused radiation from clouds helps a lot in winter [img]At this location...
Hi BlackthornWider sheets are better, less joints and potential airleaks. 1" thick polysterene sheet where light isn`t an issue will be about 5x...
Sounds horrendous, Platty. Fire and poisonous fumes would make short work of any greenhouse weeds :DWhen you replace it, keep the weed wand...
A single layer of poly would be at least as good if you can find a good way to fit it and as you say, lets in more light than the 2 layers in...
It may be something that will appeal to more "normal" ;) people eventually, especially with only 10% of the water usage compared to...
You could save yourself a job and recycle it. If the nitrates are removed by plants, no partial water changes are necessary. Only a small topup...
Hi Compostee, I`ve no idea what "Eden" translates to in welsh but perhaps it`s quite catchy? It`s certainly doable though if scaled down a bit.....
Hi Greenfingers, It`s very effective.I`ve grown bird eye chilli`s to over 3ft high solely using aquarium water (no solids and no soil) They...
Hi ComposteeSounds like you do a lot of mileage moving plants inside for the winter but maybe better to be safe than sorry. The mini greenhouses...
A dustbin won`t hold a lot (80L perhaps) maybe a few of them linked together in a line would be an option? If you use tank fittings near the...
I don`t think it`d be all that bad considering the size. Given the shape,size,insulation and the enormous amount of thermal mass involved..once...
Separate names with a comma.
