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[RSI]

Just be careful. You might want to turn your boiler temperature down to 160. http://www.healthscout.com/ency/68/606/main.html

That is interesting about the dish washer. You could put a tee in the line between the plate and the water heater tank and run that straight to the dish washer and get real hot water to it.

[Ridgekid]

I recieved my Maverick ET-7 today and installed it on the inlet/outlet side of the HWH copper pipes. Looks like when the wife takes a bath, water goes into the HWH at 172F. Thats significant since my well water is 52F. Coming out it is 162F. ( Hey honey you might want to add some cold water to your bath tonight.... lol )

In short, I'm happy with the way I installed the DHWX. It works for us!

Edit-

To RSI-

Can't turn down the boiler for two reasons:
1. Creosote buildup probable
2. Thermostat in line does not open until 160F

[gspren]

Ridgekid,
   Tell me a little about the ET-7, such as how long are the leads, can they be extended, do you leave the display turned on all of the time, etc.
Gary

[Ridgekid]

The ET 7 has a  remote transmitter, located where the probes will be located. A reciever is set up within 100 ft.

The probe length is is over 8" with usable 6". The cable is 40".

Even though it's a cooking thermometer there are selections for beef, lamb port, ect. Thats on the top part of the screen. The middle scrreen is for the probes. It does not display both probes at the same time. If you depress the S1/S2 button it switches between the two probes. Depressing and holding the S1/S2 button for 2 seconds allows the probes to switch automatically, but only for a few minutes. No temp change for a long period of time displays --- . Once it sees a temp change it comes back on. (Kinda like a screen saver?)

The bottom part of the screen is a clock and or timer. I use mine as a clock.

http://www.maverickhousewares.com/et7.htm

I bought ours on ebay (new) for $38. That included shipping.

EDIT: Yes I leave it on all the time. I actually have probe one set with an alarm setpoint of 190F and probe two set at 165F. (water in/out of HWH)