The Air Conditioning Contractors of America say they are feeling positive about business prospects.

The confidence in the U.S. economy among ACCA members continues to grow, according to the latest member survey.
br>The Air Conditioning Contractors of America's Contractor Comfort Index number for April was 69 -- a four-point improvement over April 2010's figures.

The index is made up of member responses to questions on how they view the industry's short-term prospects. A number above 50 indicates most members are expecting growth.

The next index will be released near the end of May.