http://audioboom.com/posts/4188122-the-boiler-room-sound-installation-boiler-number4?t=0

http://audioboom.com/posts/4187598-destructor-flue-sound-installation-foundsounds

https://audioboom.com/posts/4187568-ash-tunnel-sound-installation-bristles-on-a-toothbrush

(please use photo showing Jon Calver with fluffy at CMT, a couple of abstract photos of where we placed the speakers in the boiler number 4 and the ash tunnel, and then add two/three audiobooms that go with these photos = boiler number 4, gas room thripper ticker, ash tunnel bristles on your toothbrush