I 'discovered' thermostatic mixing valves a few months back when I saw a shower control that automatically keeps the water temperature at the same level. I've never used one, or seen one, but I really like the idea.
It's now on sale, way cheaper then it was. But....I can't mount it in my shower because it won't fit :(
However, I was searching at Home Depot for them and saw some 'industrial' looking ones that are even cheaper that you would mount at the tank (by the looks of it) This is what I'm looking at;
Soooo....my non-plumber understanding is that you set that valve to whatever temperature you want and you will never get hot water that is hotter than that.
Am I right in that assumption?
Wouldn't that mean, if it was set correctly, I could just open only the hot water valve in my shower, set it to whatever flow rate I want, and it will be at the proper temperature, no matter how far I open the hot water valve?
Would it be the same in the kitchen sink? Ie. if I want hot water for the dishes I only have to open the hot water valve on high and it will fill the sink with the correct temperature water?
You can probably see where I'm going with this. Eliminate the need for a new shower fixture and then turn up the water temperature in the hot water tank to some really high temperature so that I have even more hot water!
But....I have noticed that the hot water in my unit never comes out as fast as the cold water for some reason. Would a lack of pressure on the hot water side ruin the whole thing or would it even matter because the valve is using both hot and cold water?
It seems to me it would be very easy to plumb this device in with my hot water tank because of all the room in there. Ie, a fun job that *might* accomplish what I am after at a fraction of the price. Or is my understanding way off base?