Is everyone else truck like this. On the fresh air or recirculate door, the only time it is on recirculate is max a/c. All other options it is on fresh only. The heater sure would work alot better if it was on recirculate instead of fresh.
Any way to get around this to recirculate with the heater?

 

If you put it on max A/C, and turn the temp all the way to hot, it should do exactly what you are asking for. The compressor will run though..... and if your heat is marginal normally, that will only make it worse.