Just had a Raypak Bronze ASME 266 heater installed to replace my rusted out Raypak. Purchased unit from an individual that did not install it. I hired a local HVAC company that specializes in Hayward equipment. The Raypak came with an Outdoor Stack 009835. The guys that installed it said the stack was missing a top and that rain and leaves would get inside. They called the manager who said it does not need a top. I have searched as much as I can and cannot find anything about if it should have a top. I haven't tried to remove it yet and see if the Pagoda from my old Raypak 266 would fit this new unit. Does anyone have an Outdoor Stack that can tell me if it does or does not have a top? You can see that they placed the heater on top of some of the PVC and fountain valve. 
