Microchannel is a coil type used in many evaporator and condenser coils. You can easily identify it by its flat tubes, and its fins look like waves between the tubes. The technology was developed for use in the automotive industry and is used for radiators and automotive A/C condenser coils. These coils are made of […]

In residential air handler/fan coils, it is common to use a high-voltage interlock between the blower and the electric heat strips to ensure that the blower comes on whenever the heat is on. The problem is that it CANNOT work the other way around where the heat comes on with the blower. Heat strips are […]

  “What do you want to be when you grow up?” “Where will you go to college?” Young people hear those questions all the time. Although we ask those questions in good faith, they also carry a burden of expectations.  By asking those questions, we imply that we expect the children to go to college […]