Most office building owners understand how important it is to maintain good air quality in their buildings.

Arenas present several unique challenges for HVAC construction design, maintenance, operation and repair.

LAKE BUENA VISTA, Fla. — While duct sealing probably isn’t as well-known to the public as other types of HVAC system maintenance, with a growing recognition of its importance in ensuring good indoor air quality and saving energy, it’s an excellent service for duct cleaners to add.

Wiegmann Associates, a St. Louis-based mechanical contractor, has hired Kirt Daniels of Oakville, Missouri, as a project engineer.