Requires adjustable height vertical tube,
crystal clear dome and SunScoop.
Sunlight must be captured from the sun.† In Canada this requires a
SunScoop, a device which redirects low angle sunlight through the dome and
down the tube.† Without a large SunScoop the maximum benefits of your
suntube are lost, especially in the winter.† Some manufacturers have no
adjustability to get the tube vertical or high enough to clear the roof peak
or the snow.