Unless you have one of these...or you could make a foam box. Click on image for link. #attic #ventilation #HVAC

Is not flex metal. This is actually aluminum coated plastic. Use solid steel flue pipe or flexible aluminum pipe as found at this link:...

​Putting that dehumidifier in the basement will use a lot of electricty and only remove the water from the air, not mold spores, dander,...

When the ground near your crawlspace vent is graded toward your house, runoff can go right in your crawlspace vent! One rebuilt house I...