Leonard Koel's heat store

[nick pine]

Fig. 54-6 on page 431 of Leonard Koel's 1985 Carpentry book shows a
solar air heater with air flowing up between double glazing and "black
heat absorbing plates." A transpired mesh would be more efficient.

Fig. 54-8 on page 432 is a photo of a "remote solar collector unit"
that looks like a small saltbox house with a long slanted transparent
roof facing south...
http://www.google.com/imgres?imgurl=http://www.blogcdn.com/www.shelterpop.com/media/2009/10/saltbox-house-loc.jpg&imgrefurl=http://www.shelterpop.com/2009/10/22/all-about-the-saltbox-house/&h=270&w=425&sz=32&tbnid=OFuss095pb1_LM:&tbnh=76&tbnw=119&prev=/search%3Fq%3Dsaltbox%2Bhouse%2Bimages%26tbm%3Disch%26tbo%3Du&zoom=1&q=saltbox+house+images&docid=Ksm4kxk-2DVSUM&hl=en&sa=X&ei=W-NNT57qG4jo0QG47ZjXAg&sqi=2&ved=0CE0Q9QEwDQ&dur=4833

Fig. 54-9 on page 433 shows a 1-1.5" diameter rock bed heat store with
concrete walls and wire mesh and a concrete block plenum below the
mesh and rocks. There are no 55 gallon drums or EPDM water troughs in
the store, and it looks like the rock bed is at least 2' deep, with
significantly more airflow resistance than 2 6" layers of rocks with
drums and 4" PVC pipe chimneys between the drums.

Nick