I've only had my Jeep for a little over a week and I have noticed how even from cold starts I have heat almost instantly. I've never had a vehicle with that quick of a heater. Why is it so fast? I'm thinking the all aluminum engine must be part of it.
Btw, I absolutely love my new Jeep!

 

Its probably due to the fact that there is an electric cooling fan that doesn't turn on until the engine is at EOT. So right off the bat, heat is being generated unlike with an engine with a fan on the crankshaft.

 

My wife was bummed when I ordered my jeep without the heated seats. However we now see that it has amazing heat that comes out very quickly so no need for heated seats!

 

Not sure but I know mine heats up really quickly. I also love my heated cloth seats... keeps me warm when running with top off at night.

 

My 2008's heater output has always been outstanding. I drive doorless for most of the year, so i'm very happy they work so well.

 

Yes! my 2012 Get hot fast! Not only that, it almost gets too hot. If you put your hand close to the vent it feels like you can get burned. lol

 

My 07 is alright when it comes to warming up. Seems like it likes to take its sweet ass time getting there but once it does it's like a sauna in there!

 

The heat actually burns my hands while on my steering wheel :-)

 

My '08 puts out heat in less than a mile on a cold morning.
Like said above, it almost feels like I could get burned, once it's up to temp.