Because of my situation I had to run my air intake like this.An elbow off the collar going vertical and 4 ft. of 7" pipe then another elbow going to horizontal then 8ft. of 7" horizontal to outside.In the book it says 2-elbows and 12 ft. of pipe is ok but I think I am pushing it to the max.Most installs only use 2-4 ft. of pipe to the outside running horizontally.I am told a elbow is equal to 5 ft. of straight pipe in friction loss.My question is How many percent loss do I have compared to a standard installation? And how do you think this is affecting my performance?
I am told that I can pull air from the room as long as I have enough air in the room.I will have the original opening still in place.The most important question is "Is there any way if the unit huffs, can it blow back in through the air intake since it would be open to the room.
I am told that I can pull air from the room as long as I have enough air in the room.I will have the original opening still in place.The most important question is "Is there any way if the unit huffs, can it blow back in through the air intake since it would be open to the room.