Sam, can you also clarify two other points?
1. Cyper said he rang you today with regards components (heatsinks etc) used in the miner and you said he could swop them out for any other parts he wished to use. Surely this invalidates your guarantee? If it doesn't, please clarify. Are there any situations where it wouldn't? It leaves people who are not hosted by knc at a bit of a disadvantage.
I have never said that. Go check my post again.
Don't put words in my mouth please, instead try to learn how to read and remember simple bits of information.
Just got off the phone with Sam - it is a pleasure to talk to him and gives answers to all questions, so if you have any questions I suggest you call him 
But he said there is absolutely no problem to change the fans if you want less noise or higher performance.
You said fan, not heatsink. Sorry. Working from memory. The point about guarantee is the same.