Right - lots to think about and plan. Got to do a lot more reading up first.
The eco-nomical units look like they have seals at the end rather than the glass seal on Navitron - is that right?
I've had some (bad) experience with vac seals at work - if they can fail, they do. That's why I was looking at flat plate. The Navitron tubes look like they've got around this.
Early thoughts on the rethink are thermal store that can take 3 inputs and a fairly big set up that can radiate heat. Got to do lots of thinking about this.
Thanks for the inputs.
Jon
Decisions
Moderator: Peak Moderation