Quote:
Originally Posted by The Power of Dreams
When the thermostat opens, it allows full circulation to the radiator, not the heater core. It takes a while for heat to be produced by the heater core because the coolant is still relatively cold and has not been heated sufficiently by the engine.
Restriction of coolant through the heater core is a function of the heater valve. Some Hondas have one; others do not. With those that do not, the air mix control door is used to allow heated air into the cabin, or to preclude its entrance, depending on the driver's desire.
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Ah yes that also makes sense, well same concept i suppose. If the thermostat is in an always on position, it would always pass through the radiator causing your morning startup(and heater) to take longer than normal, correct?