|Rob's finished system with the two hizer design collectors.|
|Side view of the collectors.|
Rob's collectors are the first ones I know of to use the hizer design in a drain back system. In order to insure that the collector water drains back to the storage tank (for freeze protection), all of the hizer runs are sloped slightly downward toward the supply manifold.
|One of the collectors showing the hizer arrangement.|
|This shows the vertical manifolds being laid out.|
For space heating distribution to the house, Rob will be using a water to air heat ex changer mounted in the furnace ducting. He plans to make some use of this same heat exchanger for summer cooling using well water.
Full details on designing and building the system... (including a 42 page pdf)
Many other solar water heating systems...
Many other solar space heating systems...
An example of closed loop hizer design from Bob...
Thanks very much to Rob for taking the time to carefully document the system!