Category Archives: HVAC how to

HVAC or Heating Ventilation and Air conditioning has been with us for some time now from gas furnaces to cooling the air in our homes. The problem as with anything modern is it cost money when things break. This site is here to help everyone from the at home do-it-yourself person to the beginning HVAC technicians. With articles about troubleshooting HVAC problems.

Our Picks for Best Furnace Filters for Allergies

Some years are worse than others for allergies with this being a bad year for allergies at least for me. Locally where I live the dust and pollen in the air seem to be worse than usual making me sneeze constantly and a nose that won’t stop running. Besides allergy medication there is not much… Read More »

What is a Good Thermometer Best for HVAC?

Taking temperature readings is part of an HVAC technician’s job from reading air differences at the supply and return, to reading super-heat and sub-cooling. So what makes for a good HVAC thermometer? This really depends on the job. For example, pocket thermometers are a great tool to carry around and get general readings, such as… Read More »

How Does a Furnace Gas Draft Inducer Work?

A furnace draft inducer vents toxic gasses that come from the burner. The inducer motor insures there is constant flow of air outside through a vent so no toxic gasses enter a home. A Draft Inducer pulls toxic gasses from a furnace and pushes them out a vent pipe. An Inducer should start up before… Read More »

Our List for The Top Best HVAC Books 2021

Are you starting a HVAC career? Or possibly a at home do-it-yourself type person looking to save money on repairs? Then below are our top ten picks for books on HVAC. One of the things about HVAC is that the technology hasn’t moved as fast as many other fields, especially fields that are computer science… Read More »

Test and Replace the Fan Limit Switch on a Furnace

What is a Fan Limit Switch? A furnace has two switches called a fan limit switch and a high limit switch, these switches can be separate or in one package called a combination switch. High limit switch A high limit control switch will turn off the gas to a furnace if the temperature becomes too… Read More »