HVAC uses of flexible air duct have grown exponentially over the last two decades, all over North America. Contractors and installers say they like it, and some find it indispensable. It has changed ...

Dear Jim: After the heat wave we have had recently, I think we need to add central air-conditioning. We have electric baseboard heating, so there are no ducts. What are the simplest central system ...

Morgan Thermal Ceramics worked closely with UL (Underwriter’s Laboratories Inc.) to certify a new installation method for grease duct enclosures used in commercial construction. The new system, an ...

NO-LEAK POLICY: Here, a technician performs a leakage test. While some leakage was once commonly chalked up to heating the basement a little bit, those days are gone. “Now,” says Hank Artlip, “if you ...

The requirements for installing wiring in ducts not used for air handling are listed in Sec. 300.22 of the 2011 NEC. As noted in 300.22(A), "No wiring systems of any ...

Q. Do you have a bathroom fan that you like? I've got a late '50s ranch. Two full baths back up to one another — both 8x8. We have not yet remodeled yet, but plan to this year. I hoped to get the old ...

Morgan Thermal Ceramics worked with UL Underwriter’s Laboratories Inc. to certify a new installation method for grease duct enclosures used in commercial construction. The new system, an update to the ...