Never have seen Martyn in this light before, attacking a person who one offed something using ideas he gleamed from the forum. I just have to ask is AT that threatened by this one heater that they would show there a-- to the world. I have a chaser and a Horizon. While I did not buy from AT I still am asked questions all the time about them, and I have given very positive reviews, mostly because I have received great customer service from them from time to time. I have also bought some high priced but very capable gear from the shop.
I really don't think a Mod needs to step in, what I believe needs to happen is just a plain and simple apology. Martyn I have met you on a few occasions and you seem to be a very good person. We all make mistakes , God knows I've stepped in it quite a bit, but I believe if you look at this you will do what's right and give the man an apology. My .02