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.
Halogens are just incandescent bulbs with a bit of halogen gas trapped inside with the filament. This gas helps recycle the burned-up tungsten gas back onto the filament, making for a slightly more efficient light. Unlike the mercury in CFLs, this gas isn't anything that could be classified as hazardous waste.