Hello everyone! I am about to build a very small greenhouse made out of transparent plastic panels(most likely perspex) to house my growing plants and seedlings in these last cold months. The only thing that I am missing is a way to heat the whole thing. This greenhouse would go outside in my garden, the size most likely won't exceed 1x1 metre and the temperatures here(at least in february) are near but not quite 0° celsius. I was thinking of using some 100w aquarium heaters but I am not sure they would work without any water. Another idea would be to create double walls and fill them with water and then put the heaters inside, still, I don't know how much this might cost or even if they would be able to mantain the temperatures above the 18° celsius, which is the minimum temperature needed for growing my rose plants. Does anyone have any suggestion? Thanks in advance :) via /r/DIY http://ift.tt/2Er9E7O
