Hi Bpower. Is it a tight fit around the heater nozzle and also is the opposite end of the pipe closed off at all. Thanks

That’s point taken mate. The pint comes tonight

Sound advice Rocknroller much appreciated. As I say it’s all pie in the sky at the moment but worth thinking about. Thanks for your input on this pint...

Yes Tej me too which led me to believe that directly introducing steam would simplify things a bit. I know people use steam boxes so maybe this would ...

I think I might. It seems plausible to me but I really have no idea. Hopefully someone will stop me making a catastrophic error before I jump straight...

Thanks Tej