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.
Compact fluorescents, also known as CFLs, provide as much light as regular incandescent bulbs while using just one-fourth of the energy. For example, a 15-watt compact fluorescent light bulb yields the same amount of light as a 60-watt incandescent bulb.Compact fluorescent bulbs last about 10,000 hoursâ10 times longer than incandescent bulbs.alogen bulbs contain a small capsule filled with Halogen gas, which emits a bright white light. Long life and full spectrum Halogen bulbs use less energy and last longer than standard incandescent bulbs of the same wattage. The life of these bulbs is around 2,000 to 10,000 hours or two to five years.