ESTABLISHED 2020Check HVAC age,
GET STARTEDChoose an HVAC taskCheck equipment age, estimate furnace size or compare a repair quote.Check HVAC age,
size and costs.
Look up equipment age from a supported serial number, estimate heating and cooling capacity, or compare repair and replacement costs.
EQUIPMENT LABELS
Find your model and serial number
See where to find the label and what the information means.
Label location
Usually on the side of the outdoor unit.
Serial numbers can include both letters and numbers.
Enter them exactly as shown on the label.
Enter them exactly as shown on the label.
ALL HVAC TOOLS
Choose a calculator
Each tool handles one specific job and shows its assumptions with the result.
Equipment ageCheck a supported serial-number format.Furnace sizeEstimate a heating-capacity range.Heat pump sizeCompare the heating and cooling loads.Mini-split sizeEstimate capacity for one room or zone.HVAC replacement costBuild an installed budget range.Furnace replacement costAdd up the items in a gas furnace quote.Repair or replaceCompare a repair quote with system age and history.SEER savingsCompare cooling energy and simple payback.Heat pump vs furnaceCompare estimated annual heating costs.HVAC airflowEstimate the CFM required for a system.Duct sizeEstimate round and rectangular duct dimensions.BTU to tonsConvert rated cooling capacity.
BROWSE THE SITE
Find the equipment or brand
Use the equipment hubs for buying and comparison guides. Use the manufacturer index when you have a serial number in front of you.