America's Leading Discount HVAC Supplier Since 2001 ...
and now, NASCAR Racing Sponsor
Ask an Expert
866 862 8922
Hours of Operation 8am - 8pm EST
11am - 8pm EST
AC Direct - FAQ's - System Selection - Gas Furnaces
Is a higher efficiency furnace always better?
This page is designed to provide anyone looking for a new HVAC system with a better understanding of frequently asked questions about the selection, AC and furnace sizing and other important considerations in making the best choices for your home or office.
This information guide offers the following categories of information pertaining to proper AC and heating system sizing as well as important guides to ensure you make informed decisions:
If you live in a colder climate (frequent dips below 30 degrees) a high efficiency furnace is worth considering.
A 93% furnace consumes about 16% less gas than a standard 80% efficient furnace. However in warmer southern climates the limited operating time may not justify the price increase.
Another important consideration is installation and serviceability. 93% furnaces are more complex than standard efficiency furnaces and if they are not common in your climate the service technicians in your area may not be familiar with proper installation and service procedures.
Very moderate climates such as Florida, Texas, and Southern California will normally use standard 80% efficient furnaces.
If you live in a warmer area and desire the comfort and performance enhancing features offered by 2-stage, variable speed furnaces then consider one of our Ruud or Goodman standard efficiency 80% furnaces but select one of the variable speed, 2 stage models. (Goodman model GMV8 or Ruud model UGPL series)