I'm on lunch at the moment, I'll take a close look tonight.But...

I'm on lunch at the moment, I'll take a close look tonight.

But off the top of my head, they're decent brick from what I have seen, I haven't used them myself but I'm pretty sure there were some builders in New Zealand starting to use them.

however, I think i remember reading in FBRs brick patent that porotherms weren't suitable for the HX because because the overall sizes of each block can vary too much. I could be wrong though, would have to read it again.

I'd imagine if they do come to some agreement with Weinerberger that they will probably want them to use their blocks though. It's interesting for sure.