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Find the outdoor temperature where your heat pump can no longer keep up and auxiliary heat kicks in. Critical for energy planning and system design.
Use our Load Calculator if unknown
The balance point is the outdoor temperature where your heat pump's heating capacity exactly matches your home's heat loss. Below this temperature, auxiliary heat (electric strips or gas furnace) must supplement. A lower balance point means less expensive aux heat usage.
In Houston (Zone 1), heat pumps rarely need aux heat. In Minneapolis (Zone 6), the balance point determines whether a heat pump alone makes economic sense. Modern cold-climate heat pumps can maintain capacity down to -10°F or lower.
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