40 Great Gulf Dr unit 39, Vaughan, ON L4K 0K7

How to Choose The Right Heat Pump Size?

Our Kinghome dealers often get calls from customers, asking the question: “I have a 3000 sqft house, is 2 tons heat pump gonna be enough?” The short answer for that is: “We’re not sure.”

This is not because you’re dealing with a unprofessional HVAC company, but it is because the assessment of the right heat pump is not solely depends on the size of a house, but also including calculating the heating and cooling load, consider the product’s efficiency rating, and heavily depending on the climate of the region of your residency.

1. Calculate the Heating and Cooling Load

Start by calculating the heating and cooling load for your home. This involves considering factors such as the size of your house, insulation levels, local climate, windows and doors, and the number of occupants. You can use an online load calculation tool to get a rough estimate, or consult with a professional HVAC technician to perform a Manual load calculation.

2. Choose the Appropriate Capacity

Based on your heating and cooling load calculation and the advice of your HVAC professional, select a heat pump with the right capacity (measured in tons or BTUs) to meet your home’s needs. Oversized or undersized units can lead to inefficient operation and discomfort.

3. Consider Efficiency Ratings

Look for heat pumps with high Seasonal Energy Efficiency Ratio (SEER) and Heating Seasonal Performance Factor (HSPF) ratings. Higher efficiency units may cost more upfront but can result in long-term energy savings. Heat pumps must meet a 8.8 HSPF minimum in many parts of Canada, and the average HSPF ratings are between 8 to 10. Kinghome heat pump’s HSPF is up to 10.5, which will provide more efficient heating power during the challenging winter.

4. Air Source Heat Pump Heating & Cooling Load Reference

5. Kinghome Ultranixx Heat Pump Heating Load

6. Consider Zoning and Ductwork

If your home has multiple zones or complex ductwork, discuss these aspects with your HVAC technician. Zoning and ductwork design can affect the size and configuration of the heat pump system.


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