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.
Average Pay & Benefits. The BLS groups heating technicians under the job category of Heating, Air Conditioning, and Refrigeration Mechanics and Installers. These technicians earned average incomes of $45,540 per year as of May 2011, according to the BLS. Their incomes are based on both regular and overtime pay.
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.