Subj : This is the result of keeping 60% of the lights OFF and the furnanc
To   : Wilfred van Velzen
From : August Abolins
Date : Sun Mar 21 2021 21:16:00

Hello Wilfred!

** On Thursday 04.03.21 - 09:56, you wrote to me:

 AA>> I just thought since it's not uncommon for people to build
 AA>> "green spaces" and gardens on rooftops, maybe the two can
 AA>> be combined so that the heat produced from the animal
 AA>> husbandry from below can offer some warmth to the plants
 AA>> above.

 WvV> Maybe, but I've never heard of it before, either as idea
 WvV> or as an implementation. So maybe it's impractical, or no
 WvV> one had thought of it before.

I suppose it would be a rare circumstance to have an  
animal+plants operation combined in one business/location.. so  
maybe that's why no one is trying that.

 WvV> One thing though, the greenhouses over here are usually
 WvV> much larger than the stables that house a couple of
 WvV> hundred cows, for the average cow farm. So the energy in
 WvV> the form of warmth that can be harvested from a stable is
 WvV> probably way to little to heat an average greenhouse...

Have you ever visited a stable in the winter that is full of  
animals?  Even when the waste is cleaned out fairly well, it can  
be pretty warm inside.

Growing up on a couple of small farms, the worst of the waste  
was removed (manually, primarily because the interiors were  
never built large enought for driving machinery inside) during  
the winter.  But there was always a remnant that was just easier  
to leave inside and just cover the damp areas with straw.  Over  
the course of the winter, there would be quite a bit of  
decomposing straw to remove.  Anyway.. the barns never really  
needed any auxiliary heating.  Every one was comfy cozy inside.

--
  ../|ug

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