The BLS expects the field to grow by 5% in the 2020-2030 period. This growth rate is less than the average for all U.S. jobs combined, which is about 8%. But the BLS still projects 38,500 job openings per year during that period due to regular turnover. Technicians may want to keep up to date on energy-efficient heating and air conditioning technology, which is increasingly popular because it has a smaller environmental impact and can lead to energy cost savings. Unsurprisingly, the most populous states also have the most HVAC career opportunities: California, Texas, Florida, and New York. Technicians may want to keep up to date on energy-efficient heating and air conditioning technology, which is increasingly popular because it has a smaller environmental impact and can lead to energy cost savings.