A HUGE thank you to everyone for your suggestions. I did try soaking it soapy water, heating it over a bunsen, oil around the rim etc..
Wouldn't you know it, it was the tap from a piece of wood that finally loosened it (thanks Robb).
![Yahoo :yahoo:](./images/smilies/yahoo.gif)
Then I accidently dropped the condenser on the floor, smashing it!
![Crying :cry2:](./images/smilies/icon_cry2.gif)
Typical! (must have used too much "brute force".
![Laughing :lol:](./images/smilies/icon_lol.gif)
) This was my face when that happened
![Shocked 8O](./images/smilies/shock1.gif)
.
I guess it's cheaper to buy one replacement part rather than two.
![Blush :blush2:](./images/smilies/blush.gif)
Anyhoo, thanks again to everyone.