Toggle Nav
America's Leading Discount HVAC Supplier Since 2001 ...
and now, NASCAR Racing Sponsor
I need to purchase a new furnace. What will I need to know
I need to purchase a new furnace. What will I need to know
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:
I need to purchase a new furnace. What will I need to know?
Your first step is to determine whether you need gas or electric. If you are in a northern climate and gas is available this should be your first choice. To determine your gas furnaces' capacity, remove the service panel from your existing furnace and look for the Btu rating; either the "input" or "output" rating.
Gas furnaces are sold in 20,000-25,000 Btu increments. You don't have to nail your heating requirement down to the last Btu; just get as close as possible then select the furnace with the nearest capacity, rounding up.