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The homeowner field manual
Plan a dual-fuel heat pump system by comparing equipment compatibility, balance points, control settings, backup fuel, comfort, and operating costs.
A smart thermostat is only a good heat-pump thermostat when its terminals, stage support, power needs, and control logic match the installed system.
Heat-pump size should come from a load calculation and climate-specific performance data, not floor area alone. Learn what evidence to ask for.