Duct smoke detector maintenance requirements are not included in the NFPA standard that covers HVAC systems (NFPA 90A or 90B); however, the International Code Council’s 2015 Mechanical Code does ...

Greg Kessinger is SD&I’s fire alarm and codes expert and a regular contributor. Email him your fire & life safety questions at [email protected]. Video Image Smoke Detection (VISD) continues to ...

A move into duct-cleaning work is natural for HVAC contractors looking to expand their repertoire and add another source of revenue. The ability to clean ductwork and peer inside it via video cameras, ...

Kidde Commercial, an industry renowned company in fire and life safety for over a century, announces the launch of the Optica Duct Smoke Detector, which features a revolutionary new design, ...

The RT-3000 is an outdoor duct smoke detector that has a NEMA 4X corrosive environment rating. The single-latch closure has no screws to slow the contractor down. The patented cover tether retains the ...

Duct-mounted smoke detectors stop the HVAC system from feeding air to a fire because it turns the system it monitors off if it senses smoke in the duct. This can be helpful and life-saving in the ...

Software helps calculate residential HVAC loads, duct sizes. Software that simplifies calculations and look-ups required in Manual J is very helpful, eliminating a lot of the tedium of precise manual ...