I have to ask if anyone has experienced a 15 mile drive to get to the first opening of their thermostat? This morning it was 42 below Celsius and thats what it took to get the first cycle to start. The heater fan was on low with the temperature setting at 1/2. and the rad covered with cardboard . Thats not near as fast as my 99 was.
If I stop driving I need to put the heat on low and the fan at it's lowest setting or the engine temp. drops into the basement even on fast idle. 

