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 120 Volt Electric Garage Heaters

Keeping a garage warm, or at least warmer, is ideal when working during the winter. One of the problems with many garages is they lack a 220 volt outlet to run a heavy duty heater. 220 volts is ideal to get the high amps needed to run a commercial style electric heater. With that said… Read More »

Furnace Filters Reviews: Best to Worst

Replacing a furnace filter is often not on the top of the to-do-list. It can be overlooked until the furnace is not working properly or the air becomes less clean. People with allergies are often the first to notice when a furnace filter has become dirty and needs replaced. And just as important a dirty… Read More »

How to Test Water Column Gauges for Gas Furnaces

What is Water Column? Water column is how gas pressure is measured. The first devices to measure gas pressure were tubes in a U-shape half filed with water. Pressure was applied to one side of the tube from a gas line and other side left open. How far the gas pressure pushed the water up… Read More »

How To Buy and Replace a Furnace Capacitor

Purchasing a furnace capacitor and installing it is easy to do and falls into the do-it-yourself category. Basic precautions need to be taken mainly turning the power off to the furnace as not to get shocked. Furnaces can fall into three categories when it comes to capacitors. Not have a capacitor at all. Some units… Read More »

Gas Furnace Sequence of Operation

There are different types of furnaces and furnace manufacture but below is the most common steps for a furnace to go through to start. While most furnaces will follow the below sequences there may be variations in models and manufacturers. Gas Furnace Sequence of Operation The thermostat reaches a set temperature and sends a signal… Read More »

How To Test a Gas Furnace Pressure Switch

What is a Gas Furnace Pressure Switch? A gas furnace pressure switch is a safety component that makes sure gas is being vented from a furnace before starting. The furnace pressure switch sends a signal to the furnace control board that verifies the inducer motor is working. An inducer motor spins creating a vacuum that… Read More »