Not me, I have a 4K sq foot, 3 story building, and the PC45 hasn't had any problem with the air intake. I would like to have one, but the stove is not sitting on an outside wall. I would have to run a pipe down into the basement and then outside from there. Too much work when not needed. The furnase has 2 fresh air intakes that mixes with the return air, so there is always positive pressure in this place.
LDJ 165K Boiler / Harman PC45 / Kan Burn cleaner
Smoke'm if you got'm