Hello all, I has a Quadra fire 5100i-Act that needs a rebuild so today I gave it a good cleaning and started making a list of parts that I needed to purchase to get ready for the coming cold months. I'm planning on replacing all the fire brick in the unit as they are showing there age with lots of broken bricks and extremely brittle bricks as well. My question is this. According to the serial number and model number it is a 5100-i Act unit but I do not have a fiber board baffle or a blanket this unit has a factory installed fire brick baffle. So I started researching it appears under parts websites that the Pre ACT used a fire brick baffle but according to my id tag I do in fact have a ACT. So I reached out to my local Quadra fire dealer and he was arguing me the point that if I had a firebrick baffle then I had a pre ACT stove if that's the case why does my id tag say ACT so as I start to order parts I do not want to order all the wrong parts for my model. What are the differences between the Pre ACT and the ACT model thank you in advance for the help -Patrick