The Spra-Kleen humidifiers have a 1-1/2 gallon per hour capacity, which is controlled by a humidistat. According to the manufacturer, the humidifiers have a unique method of humidifying and cleaning ...

Many in our industry believe the duct material used in an installation determines how well the HVAC system moves air. Because of this mentality, flexible duct often gets a bad name. The issue isn’t ...

In last week's blog post on transite heat, I explained that most sub-slab ductwork is not transite. It's not transite heat, it's not transite ductwork, and it should not be labeled as such unless the ...

Class 2 and Class 3 plenum cables listed as suitable for use in ducts, plenums, and other spaces used for environmental air shall be Type _____. The correct answer is: a) CL2P and CL3P Article 725 ...