Heat Pump Calculation Formula:
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Heat pump capacity, measured in tons, indicates how much heating or cooling a system can provide. One ton of cooling equals 12,000 BTU per hour. Proper sizing is crucial for efficiency and comfort.
The calculator uses the following formula:
Where:
Explanation: This calculation provides a rough estimate of the heat pump capacity needed for a standard home.
Details: Correct heat pump sizing ensures energy efficiency, proper humidity control, and system longevity. Oversized units short-cycle, while undersized units can't maintain comfort.
Tips: Enter the total living area in square feet. The calculator provides an estimate - for precise sizing, consult an HVAC professional who can perform a Manual J calculation.
Q1: Is this calculation accurate for all homes?
A: This is a general estimate. Actual needs vary based on insulation, climate, windows, and other factors.
Q2: What's the difference between BTU and tons?
A: 1 ton of cooling = 12,000 BTU/hour. Heat pumps are typically sized in 0.5 ton increments.
Q3: Should I get a slightly larger heat pump?
A: Oversizing can be less efficient. It's better to get a properly sized variable-speed unit.
Q4: Does this work for both heating and cooling?
A: Yes, though heating capacity may need adjustment for very cold climates.
Q5: What if my home is very well insulated?
A: Well-insulated homes may need less capacity - consult an HVAC professional for precise calculation.