I think Gary's idea is the best. He's actually heating his house with solar thermal panels and should be listened to, IMO. I have also recently heard of a system that uses drainback AND a glycol solution with a heat exchanger. It sounded complex and redundant on first examination, but had the advantage of being absolutely freeze proof, plus the ability to drain down un-needed panels in the summer.
I've listened to more than a few people who have actually heated their home or DHW with thermal solar panels and Gary is not the first one to recommend vertical panels. I don't know why it's impossible in the OPs regard but it certainly is a perfect solution to his problem, if you ask me.
Volvo Farmer
May you always have success in your quest to irritate those who you despise. -Ben Goode [ Parent ]
On a new property I would do vertical (or 70*+) panels like a shot.
I don't think it's going to be possible for two separate legal reasons on my current property, though it's looking more and more worthwhile to try.
Yes, Gary's practical experience is just what I'm after.
Rgds
Damon[ Parent ]
