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 »