Best Smart Thermostats for Older HVAC Systems
Old furnaces, boilers, and missing C-wires complicate the smart thermostat upgrade. Here is how to check compatibility, fix the wiring, and pick a model that works with aging equipment.
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Best Smart Thermostats for Heat Pump Systems
Heat pumps need thermostats that understand auxiliary heat, staging, and balance points. Here is what to look for and which models handle heat pumps properly.