How a Gas Furnace Works
This illustrated guide diagrams the various parts of a gas furnace and explains how they all work together. A gas forced-air heating system goes into action when the thermostat tells it that the room temperature has dropped below a preset comfort level. The thermostat sends a low-voltage electrical signal to a relay in the furnace, […]
Buying, Installing & Fixing a Central Air Conditioner
In This Article: Buying a Central Air Conditioner How Central AC Works Central AC Problems & Repairs Central AC Cost & Installation Are multiple room air conditioners causing your electricity bills to skyrocket? Or, perhaps worse, is your house virtually unlivable during summer because of the heat and/or humidity? Maybe it’s time to consider central […]
What Is a BTU?
A BTU is the basic measurement used for rating how much energy it takes to produce heat. It’s used in determining the efficiency of air conditioning equipment, furnaces, and any appliances that heat—such as water heaters, ovens, and fireplaces. Here is what it means and how to convert BTUs into other energy measurements. When buying […]
How to Replace a Heat Pump Filter
Heat pump air filters should be changed at least twice a year. Here is how to replace them. If you want a quick view on changing filters, see the video at the bottom of the page. Air filters are an important part of a heat pump heating or cooling system. They remove dust and allergens […]