I'm finding that I like the full grill block so much that I'd like to keep it around year round. However, running a full grill block can definitely be a problem in summer. So, I've resurected my old thread on an arduino controlled automatically actuated grill block. The old design for my Matrix didn't work out. But, I think the new design is simple to make, scalable for whatever application, and cheap to make too. I have another thread started to show the progress on it here:
http://ecomodder.com/forum/showthrea...tml#post342371
