Posted by KLS on March 7, 2009, 11:36 pm
I know Morris Dovey has these wonderful passive solar heating panels,
and I'd like to know if anyone has incorporated those structural
concepts without the exterior glazing into a south-facing sunroom
structure to capture the heat for the rest of the house. Eventually
I'd like to build a house that faces due south with a room we could
sit in year-round that could collect heat in the winter, but keep the
house cool in the summer with the right size eaves. We're in western
New York, right by Lake Ontario, with many cloudy days, and I'm
considering those passive house European building techniques as well,
like the ones discussed in this New York Times article:
Posted by gary on March 8, 2009, 12:00 am
This is an example of thermosyphon collectors integrated with the
south wall of a house:
Search down the page for "Gregory Lehman Houses"
I think this is a good way to go for areas you don't want to put
windows in, or where the glazed area might get to large -- it should
be very inexpensive per sqft to add these as the wall and the
collector can share some components.
But, if you are going to build a sunroom, I'm not clear on why
ordinary glazing would not work just as well (or maybe better) to
I agree that the Passive House Institute homes are very impressive.
There is a US branch in Urbana, Il -- Google "Passive House Institute
They sell the software that is used to design and certify Passive
Homes in a US version for $25 with documentation.