It is a fucking thing of beauty.
Edit - behold!
Edited by lefty - 6/1/16 at 4:31am
Most of the time I've encountered them they were used for safety code reasons In these cases the settings were remote and inaccessibleto the user . Whether they are worth it or not depends on how much you dislike tempering your water manually . I would never even consider one myself ,just something to have problems with down the road. All modern shower valves have scald protection anyway
I retired 10 years ago so I haven't kept up with the buzz words but as far as I know functionally they are the same thing . They prevent surges in hot water pressure. This meets your code requirement. A thermostatic valve has the advantage of temp set point. A balance valve needs be manually tempered
ps: thermostatic valves do save water if that is an issue for you . How much they save depends on the distance from your hw source to point of use
Yes. They do not allow cold flow until the hot flow is above the set point.Cold flow is then metered in as needed to maintain set point . In this way you save all the cold water that would be wasted tempering mixed flow to set point . Water pressure is water pressure . What comes out of your showerhead is a result of pressure and available volume(size of pipes and number of restrictions). The effect of the valves restrictions are governed by manufacturing standards so no matter what valve you buy the effect will be similar.
Makes sense. I was imagining something like that but did not look for the answer myself.
Marble tile is on my list to check out when we remodel our master bath though in more budget friendly sizes.