I think I will probably get a quick answer to this one! When I got the bundle of donor parts way back, they included a lot of plastic Metro heating/ventilation pipework. I'm pretty sure (having looked through the manual) that none of them are necessary, but wanted to check before I recycle them.

Yes you can recycle them.

Thought so! I guess no one would want them. Needed to check in case I'd missed something. Thanks for your help.