Heating system controls regulate when the various components of the heating system turn on and off. The most important control from your standpoint is the thermostat, which turns the system â or at least the distribution system â on and off to keep you comfortable. A typical forced air system will have a single thermostat.
The ultrasound techs in Ohio make between 25,000 and 40,000 dollars a year. This is a job that is easily learned without a college degree.
Salaries. Ultrasound techs earned an average $65,800 annually, or $31.63 per hour, as of May 2011, according to the Bureau of Labor Statistics. The lowest-paid 10 percent received $44,950 per year, or $21.61 per hour. The highest-paid 10 percent made $90,640 yearly, or $43.58 hourly.