Well, it's all happening here (note to self - got to be careful, just noticed I'm on post 999, next post must say something about this landmark!) -

- anyway, the big toys came out (diamond blades!), time to make a hole through the wall of the outside cupboard -

- about 3 minutes of drilling later the guide poked through -

- and then the blade started to appear (with lots of smoke and dust) -

- and almost before I could focus on it (well, okay, before I could focus on it), out it popped -

- "Bit of PVA on there mate and you got a pretty unique door stop" (think I might do that!) -

- Anyway, here is the hole -

- and poor Santa and Snowman (who got a bit of brick dust, but should be used to "light dustings" of things, if you ask me) -

- and then, even as I was flickr'ing the last bunch of pictures, I got a call, it was in already! -

- the inside looks like a bloody motorbike engine -

- believe it or not there is a spark plug on the injection system (yes, injection system!) which super heats 80 meters of micro-size aluminium tube (which loops the round bit at the top), then the bit at the bottom is a massive heat exchanger (*exactly* the same technology used as a heat sink on a PC processor, but reversed to work as a heat dump)!
Amazing stuff! Learning a lot here... :)