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Blogs > RockyG666 > god's servant's blog


RockyG666 63M
1747 posts
10/19/2014 2:36 pm

Last Read:
10/19/2014 2:42 pm
again again solar furnace
it was nice out today and I finished the popcan part. now I just have to build the back, and exhaust it to my window. I have been researching fans, and they make them right inside a piece of exhaust pipe. I am going to try one of those, they are kind of pricey though.

the fan will need to suck air out of the bottom of this thing (up on the roof) into the house maybe 3 feet beneath it. according to everything I am reading, it is important to keep the air moving through the furnace at a brisk rate. there is much less heat loss when the air keeps moving quickly. I am using double pane glass, and a manufactured vinyl frame that is made to keep the weather out. it should be fairly efficient.

I am going to make a 2nd one for the greenhouse that will be horizontal rather than vertical. I also still have all the Styrofoam ones I made last year. I am trying something different in the church this year, so I won't put all of them back up there. I will use some of them in the greenhouse.