$90.00 flow hood?
I’ve been chasing a low-cost flow hood for monitoring performance of my ventilation system for some time now, hoping to get one used, or through my HERS rater, and recently discovered a comment made by Martin here on June 15th ’09 referring to a way of making a homemade flow hood “from a cardboard box and a $90 digital anemometer”. (Right under my nose)
Can you give us an updated design for such an elegant contraption and recommendations for what anemometer to buy and what other diagnostic tests we might be able to accomplish with it? the choices on these things is overwhelming.