Is the blue wire the C wire

Blue wires are also called C wires because they are the Common wire. C wires are necessary for any smart thermostat that needs to be connected to a power

What is PPV and NPV

A sensitivity of 96%, and a specificity of 98% at 20% prevalence meets the requirements for PPV (≥90%) and NPV (≥99%). There are lots of combinations of

What is a ledgestone

In its most basic sense, ledgestone is a pattern of stonework utilizing horizontal joints. The pattern is typically made up of individually stacked pieces of