Symbol Pb A soft, easily shaped, heavy, bluish-gray metallic element that is extracted chiefly from galena. It is very durable and resistant to corrosion and is a poor conductor of electricity. Lead is used to make radiation shielding and containers for corrosive substances.
When trying to cool a typical house, the average central AC will only decrease the temperature by about 20 degrees. For example, when it is 100 degrees outside, the inside will typically cool to about 80 at best. However, in order to achieve the 80 degrees inside, the air coming out of the vent should be 45-55 degrees. The temperature coming directly out of the vent is different than the ambient temperature of the house. The air coming directly from the vent should be 45-55, however this will not be the temperature in your home. If using a thermometer stuck in the vent, and the blower fan on a medium speed, in the full cold position with AC on vent, temperatures should be between 40-50 degrees F.
The thermostat can be placed on 77F and the humidistat set for 58%. If the temperature is above 77F and the humidity is below 58%, the AC will not run and cool, which is okay since it wonât support mold.As soon as the humidity goes above 58% AND temperature above 77F, the AC will run.I also use a back-up plug-in dehumidifier with a drain tube to a plumbing system drain and set if for about 62% in case the main AC unit malfunctions.This keeps my electric bill to a minimum when away.s soon as the humidity goes above 58% AND temperature above 77F, the AC will run. I also use a back-up plug-in dehumidifier with a drain tube to a plumbing system drain and set if for about 62% in case the main AC unit malfunctions. This keeps my electric bill to a minimum when away.