Joe Sylwestrzak wrote:OK OK I shamelessly admit I did use some of his ideas . But I am doing some things differently too. I dont know why for instance he didnt cement his J tube together but instead had his bricks just sitting on each other. Im thinking cementing should improve the whole rocket concept
I really liked ZFF's concept, and it was very inspirational in my 1st rocket heater plans. He did some posting here about his original build and testing. The only aspect I questioned was his lack of burn tube insulation (other than it being made of fire brick). It is a nice design that has been working well for him. I see no reason not to use his ideas with our own added touch.
He did use refractory cement (in a tube I believe) to hold everything together, at least for the riser anyway. I tried that in my first build, but since I stacked my bricks incorrectly it didn't hold up.
"Necessity is the mother of invention" That's why I'm a Jack of all trades, Master of some and have learned that Knowledge is power, but information isn't necessarily knowledge.