The International Air Conditioning, Heating, and Refrigeration Exposition (IAHR Expo 2000) will mark its 70th anniversary February 7-9 at the Dallas Convention Center with a completely sold-out exhibit hall.

American Society of Heating, Refrigerating, and Air Conditioning Engineers (ASHRAE)meetings are beneficial for contractors.

American Society of Heating, Refrigerating, and Air Conditioning Engineers (ASHRAE)meetings are beneficial for contractors.

Installing the hvac system for a multi-million dollar custom home here was a real challenge for Marshall Dennington, owner of Temco Air Environmental.

School districts are requesting an almost overwhelming amount of renovation and repair work for their buildings, and hvac contractors are struggling to keep up with the demand.

Chas. Roberts is one of the largest hvac contractors in Arizona.

Business is great in all market segments in Phoenix, and most hvac contractors seem to be doing well, including W.D. Manor Mechanical, a mechanical contracting firm.

In some cases, contractors are using zoning rather than adding an extra system.

Sam DiCicco not only owns several office buildings in the area, he’s also the proprietor of a successful commercial and institutional contracting business.

In essence, zoning divides a home into areas with similar heating and cooling requirements, and each area has its own thermostat.