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Post by floris on Sept 17, 2019 7:57:38 GMT -8
I'm looking for some help sizing a BatchRocket. See the JPG-map for some information. I use Yasin's spreadsheet that peterberg links to on his website and If I just look at the office space that we want to heat I get: Based on that we could probably get away with a 125mm system but then there are these open doorways that lead to the bedroom and the workshop and up the stairs to the living room, though that's heated. How do I go about calculating the needed system? I could look at it as a very badly insulated space and add a couple of points to the insulation factor or I could take the sizes of those adjoining rooms into account, but not the whole size as the limited sized doorways don't let so much heat through. I'm curious how you would go about calculating this, All the best Floris
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Post by Orange on Sept 28, 2019 9:32:38 GMT -8
maximum size chimney can take?
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Post by floris on Oct 3, 2019 0:56:27 GMT -8
Hi Orange, there is no chimney yet so we would have to install one.
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Post by Orange on Oct 4, 2019 9:11:58 GMT -8
I like how calculator says "always oversize" Are you sure you want only 15C difference in temperature, is it warm climate?
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Post by floris on Oct 6, 2019 20:28:54 GMT -8
Yes I undersized one and I really have to push it beyond its limitations and it just becomdes much less efficiënt.
Yes 15 is enough as im in Portugal. In the might it goes to around 0 degrees Celsius.
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Post by Orange on Oct 7, 2019 13:08:35 GMT -8
well if outside is 0 and you want 25 in the room than the difference is 25C. I'd just go for the bigger diameter like 20cm and close the entrance to the stairs so heat cant go up.
but what puzzles me how BB has so low power to system size ratio...
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