Have you been thinking about replacing your heating unit with a newer and more efficient model in the new year? How do you know you are choosing the right unit for your home? Please read on to learn more.
Doing the Math
First, you need to determine the amount of square footage in your home that you will need to heat. Texas is in the warmest of the US climate zones. That means that you will need a heating unit that can provide you with approximately 30-50 BTUs (British Thermal Units) per square foot. This is known as the heating factor. If your home is well-insulated, you can likely use a number closer to the lower end of the spectrum. The higher end of the range should be used if your home is poorly insulated. Older homes will also require more heating than newer, more efficient homes. To figure this out, simply multiply the number of square feet you need to heat in your home times the heating factor. For example (an older home with less insulation): 2000 square feet times a heating factor of 35 would equal 70,000 BTU per hour. This will help you determine what size of furnace you will need to properly heat your home. This is known as capacity in the manufacturer’s specifications and is measured in BTU per hour. Another factor to consider, is the efficiency rating in the manufacturer specifications. These typically fall between 80-90%. For example: If you require a 70,000 BTU per hour heating unit, and the efficiency of said unit is 90%, in reality, it will provide you with approximately 63,000 BTU per hour, because 70,000 x .90 is equal to 63,000.
Choosing the Right New Unit for Your Home
You can find information about new HVAC units at a variety of manufacturer websites, or by contacting your local HVAC professional. When comparing units, it is important to consider such factors as the capacity, efficiency rating, and the type of fuel sources you have available to you at your location. Your household’s budgetary needs must also be taken into consideration.
To learn more information about new HVAC systems on the market, or to schedule your seasonal performance check, please contact the professionals of Expert Air and Refrigeration at (512) 255-6525.