Heat Pump Coverage Formula:
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Definition: This calculator estimates the required heat pump capacity based on area size and BTU per square foot requirements.
Purpose: It helps homeowners and HVAC professionals determine the appropriate heat pump size for a given space.
The calculator uses the formula:
Where:
Explanation: The area is multiplied by the BTU requirement per square foot to determine the total heat pump capacity needed.
Details: Correct heat pump sizing ensures energy efficiency, proper temperature control, and system longevity.
Tips: Enter the area in square feet and BTU per square foot (default 20 BTU/h·ft²). All values must be > 0.
Q1: What's a typical BTU/ft² value?
A: Most homes need 20-30 BTU per square foot, but this varies by climate and insulation quality.
Q2: Why is 12,000 BTU significant?
A: 12,000 BTU/h equals 1 ton of cooling capacity, a common measurement for residential systems.
Q3: When would I need a higher BTU/ft² value?
A: In colder climates, poorly insulated spaces, or rooms with high ceilings.
Q4: How do I measure my room's area?
A: Multiply length by width in feet. For irregular rooms, divide into rectangular sections.
Q5: Does this account for windows and insulation?
A: No, adjust your BTU/ft² value higher for many windows or poor insulation.