Electronic Tempering Valves- Trouble or Awesome?

BigRob

I like the heat timer solution. Caleffi also has a solution, although it's unclear if it's in the US yet.

Do any of you have practical experience with one? Good, bad?

hot_rod

Quick response, and the ability to change temperature. Probably see more of them when DHW systems need to have their temperature elevated for anti bacteria concerns, once a day, for example.

We build anti legionella stations for the Euro market currently, you'll see them here soon enough, replacing or enhancing common DHW recirc systems.

Any time you add electronics and control logic you end up with a more complex device, of course.

The beauty of thermostatic valves like mixers and TRVs is the sheer simplicity. A wax or fluid filled cartridge does the work, and amazingly accuratly at that.

BigRob

hot rod said:

Quick response, and the ability to change temperature. Probably see more of them when DHW systems need to have their temperature elevated for anti bacteria concerns, once a day, for example.

We build anti legionella stations for the Euro market currently, you'll see them here soon enough, replacing or enhancing common DHW recirc systems.

Any time you add electronics and control logic you end up with a more complex device, of course.

The beauty of thermostatic valves like mixers and TRVs is the sheer simplicity. A wax or fluid filled cartridge does the work, and amazingly accuratly at that.

Will the Caleffi have a battery backup option? That is my main concern. The heat timer stainless 1.5" kit is around $1.3k. While absurd, it seems like a good price compared to some of these large thermostatic units, which might wear out prematurely if oversized or have widely varying loads.