What Do Thermostat Wiring Colors Mean? The colors of thermostat wiring indicate how each is used. To make sure that the thermostat functions properly, you have to make sure that all of the color-coded wires get on the appropriate terminals. While each system can vary, generally, you will find that the wires have universal coding: The red wire is the hot side of the transformer. The yellow wire deals with the compressor, which typically has to do with cooling. The green wire is the furnace blower fan. The white wire deals with the heat.
WASHINGTON (AP) â It's going to cost you a few pennies more to mail a letter. The cost of a first-class postage stamp is now 49 cents â 3 cents more than before. Regulators approved the price hike in December, and it went into effect Sunday.
Starting today, the cost mailing a one-ounce first-class letter has gone up 2 cents - from 47 cents to 49 cents. It's the first time the U.S. Postal Service has increased stamp prices since January 2014 when the cost of a stamp rose from 46 cents to 49 cents. Then, in April 2016, the cost of a stamp dropped - the first such reduction in almost a century - from 49 cents to 47 cents. Now the cost is back up.