Tried this tonight, the engine did heat up faster. But didn't necessarily make the car warmer faster IMO but your mileage may vary. I've defaulted to relying on the heated seats most of and thick gloves during our extra cold week where it is negative fahrenheit temps most of the day.So I did a little experiment today. It was a pleasant -27C showing on the dash(-17F). After a short trip I picked up my wife and dropped her off at the grocery store for a bit and said I’d wait in the car because it’s fricking cold. I went and parked the car and at this point the car was just above the blue cold range on the temp gauge. I had the heat on high temp and fan speed 4 and the engine temp dropped to JUST on the upper range of the blue zone after a few minutes. I went to fan speed 5 and it started to dip into the blue just slightly so I went to fan speed 3 and the temp started climbing slowly. Fan speed 2 and it kept climbing. So I turned the fan off completely. I’ve never seen my engine warm up this quick before. I watched it climb all the way to almost half on the gauge within a couple minutes then started playing with fan speeds again but it seems that 0-1 speed the engine will heat up in no time. Anything 4+ speed with a cool engine it does not like being robbed of all that precious heat. Anyways just thought I’d mention how HUGE of a difference putting the heat on 0-1 for a few minutes makes.