The Blue Heat is very similar to their TSL 17 model. I have an earlier model in my '97 and I wouldn't be without it after using it. I've installed a TSL 17 on a '04. 5 Dodge, and also helped install one on a '95 CTD. I can't see any downside to using it. It's great to come out after work and hop into a warm truck. No waiting for the grid heaters to cycle, and the warm air coming out of the heater is great. The unit in my truck is a model DBW 46 that I put in used a couple of years ago. It started it's life in my friend's '95, and he gave it to me after I found him a great deal on a new TSL 17. The DBW 46 had been in his truck for 7 years before I got it. All I had to do to it when I got it, was install a new felt wick in the burner assembly. It's been working great ever since. Check out Ebay, I've seen some great deals on some TSL 17's there.