[permaculture-oceania] Sunlight into buildings

[Robyn Francis]

On 11/7/06 2:41 PM, "len organicpc" <gardenlen at hotmail.com> wrote:

>> Can anyone recall what those heat collectors were called in the early days
>> of solar energy?  Set at an agle below a window, they collected heat and it
>> flowed into the room behind, and the vent could be closed in summer.

They are called solar box collectors

Robyn