When you show the actual OA intake, I thought you are pointing to the S/A grille. After 4 times review, I saw the insulated duct. Thanks for the courses.
Hello Sir , we have a tightly sealed house with 38000 btuh water heater and 60000 btuh non direct vent high efficiency furnace . We have a fairly small furnace room say (10 foot by 7 foot area ) Im planning to make a duct for fresh air intake from side of house. As per the numbers it should be a 4 inch diameter, but since my furnace space is confined( less than 50 cu ft per 1000btuh, would it make sense to have a bigger fresh air duct of 6 inch instead to let in more air? Are there any cons to that?? Would it make our basement too cold ?? Any help is appreciated
Very helpful…better than what I’m learning in school
When you show the actual OA intake, I thought you are pointing to the S/A grille. After 4 times review, I saw the insulated duct. Thanks for the courses.
very helpful
Hello Sir , we have a tightly sealed house with 38000 btuh water heater and 60000 btuh non direct vent high efficiency furnace . We have a fairly small furnace room say (10 foot by 7 foot area ) Im planning to make a duct for fresh air intake from side of house. As per the numbers it should be a 4 inch diameter, but since my furnace space is confined( less than 50 cu ft per 1000btuh, would it make sense to have a bigger fresh air duct of 6 inch instead to let in more air? Are there any cons to that?? Would it make our basement too cold ?? Any help is appreciated