The pressure transmitter comes in a number of shapes and sizes. One, referred to as a Bourdon Tube, is designed especially for monitoring non-liquid pressure. They are relatively inexpensive and good for measuring air and gas pressure in compressors. The tubes may be c-shaped, spherical and helical.
Pay for heating technicians can vary significantly by industry. The highest average pay, at $70,920 a year, was reported by those working for electric power companies, according to the BLS. Technicians also earned above average pay in the motor vehicle parts manufacturing industry, at a mean $64,610 per year.
As for labor, HVAC installers charge between $50 and $100 per hour. Electricians may charge upwards of $200 per hour depending on the area. Most furnaces will last between 15 and 20 years. In choosing a furnace, property owners should consider heat output and efficiency. Heat output is measured in British Thermal Units, or BTUs, and the size of the furnace should be matched to the size of the building.