Heater matrix

[Ben]

I've done it twice now and the second time I split the matrix inside so that I didn't have to get the pipes through the bulkhead. Saved me a huge amount of time. Just reused that pipe elbow bit of the matrix with the new O rings from the new one.

And I wouldn't necessarily worry about labelling anything, I just put a bedsheet on the roof and put all the parts on that in the order they came off. Loads easier than the previous time when I just chucked everything on the back seats!