every day i go to work my cars gets in to the normal operating temp aronud the block but for some reason for the past couple of days it takes me all the way till i get to work to warm up be for my heater works it take me 25 min to get to work. i did but one of the fail safe thermostats in it i think its stuck open but im not quit shure but the weather hase been kinda hot around hearyou would think it would take an even shorter time for it to warm up

 

sounds like the thermostat has stuck open.

 

My car takes a total of 10 minutes to fully warm up, whenever I start it I leave the heater on the highest setting. Come back and its nice and toasty definitely sounds like a t stat issue