If you’re serious about growing, you need a greenhouse.  And, like all houses, an efficient greenhouse will be double-glazed to give you the controlled and consistent environment your growing plants need.  Double glazing will give you a year-round greenhouse to beat the vagaries of the British seasons, one that you can bring up to temperature and keep there, at the right humidity, using little energy and without waiting costly fuel.  Not all greenhouses can be linked to mains services, so you may be heating using other means; the more efficient you can be, the better all round, and the more you derive benefit from the plants you’ll be able to nurture.  Double glazing will also make the most of solar gain, so any sunny day in even the coldest winter will add to the total of warmth in your greenhouse – it will get in, but it can’t so easily get out. [Read more...]