Happy Holidays, everyone! A client requested ventilation only for a dog daycare business, which I designed into a 1600 cfm exhaust fan, with 8' ceilings at 4 air changes per hour (this is a bit more than 4). He now requested air conditioning and heating as well. My question revolves around the best way to design this system. How should I choose equipment? Should I do what I initially thought as the solution: put a conventional gas furnace with ac and a separate exhaust with a fresh air louver in the wall and/or outside air in the return? or should I check into a makup air cooling/ ac? Customer expressed a low budget..... I am inspecting the design of another pet "resort" later today to see what others have done. Thanks in advance. cp