Compared to aluminum, absolutey! Aluminum has much better heat transfer characteristics. People tend to look at a number in a reference book though, and say "oh that won't work", or "thats not good". Some of the numbers that you come across for Ti are based on electrcal resistence, which coralates well with metals like aluminum, but not with Ti. Ti is even used as heat shields in allot of aerospace applications, and this has to do with the temperature range where they are being used. Aluminum will oxidize at only a couple hundred degrees to the point that its heat transfer ability is severly inhibited, anodizing of the surface can help reduce this up to a certain tempurature though. Ti will begin to shine at these higher temps when oxidation becomes a bigger issue for aluminum. The oxide surface that is built on Ti at high temps does not inhibit heat transfer nearly as much as it does with other metals. Its all relative of course, but aluminum @ 1100 degrees, melts and then at a bit higher temp turns entirely to aluminum oxide with horrible heat transfer ability. Ti on the other hand will transfer far more heat @ the same 1100 degrees. Of course if you are in contact with a pot full of water at all times, you will never reach these temps, except at the extents of the heat exchanger, which could have a "building" effect. Like I said there would be other variables, it can be very dynamic depending on the particular situation. But for the same reasons that Ti is substituted for aluminum, like durability, I think there is good case for using Ti in such an application. Manufacturing alone would be one reason. Its not too often that Ti would be easier to work with compared to aluminum, but this would be one of those.