An HVAC installer can earn an average of $42,000 a year, with four or more years of experience, while those new to the field make an average of $26,000 the first three years. Working in the motor vehicle manufacturing industry can offer the highest salary, with the average employee earning $68,000 a year.he HVAC salary will typically depend on an individualâs skill level, years of experience and place of employment. The tech will working by installing, repairing and maintaining air conditioning, ventilation and heating units for commercial or residential buildings.
CFL bulbs, on the other hand, are made of glass tubes filled with gas and a small amount of mercury. The amount is so small that an old-fashioned glass thermometer holds 100 times as much mercury as one CFL bulb.he mercury in a CFL bulb also means that you should not toss burned-out bulbs in the trash. Many municipalities offer recycling services, as do retailers such as Home Depot, Wal-Mart and IKEA, although not necessarily at all locations.
These bulbs do not use more electricity to turn on than to run them, so you will always be using less energy by switching these light bulbs off when you donât need them. CFLs (which use the same technology as the fluorescent tubes in strip lighting) require a small amount of extra electricity to light-up â but only about the same amount as it takes to run them for a minute or two. As a result, you will still use less electricity overall if you switch CFL lights off once youâre finished with them.