The ThermoMix boiler protection high-flow thermostatic mixing valve is used in hydronic heating systems with non-condensing boilers, including solid fuel, biomass, gas, LP or oil-fired. It can be
installed with steel, cast iron and copper tube style boilers,
automatically controlling the return water temperature, preventingcondensation of the water vapor contained in the flue gas.
The 280 series ThermoMix valve mixes bypass flow from the boiler
with return flow from the system, sending a fixed temperature flow to
the boiler which protects against corrosion from condensation
occurring when a minimum flue gas temperature is not otherwise
maintained.
Changable thermostatic sensor cartridges modifies valve temperature
setting. The thermostatic sensor cartridge can easily be
removed for maintenance or to change the valve set temperature,
with out removing the valve body from the piping.
Note: Image depicts threaded model
Note: Do not use this item for any installation or repair of potable water applications. This product does not comply with the "Safe Drinking Water Act," which requires that products meet low-lead standards in order to be used in systems providing water for human consumption (drinking or cooking). This item is for non-potable (non-human consumption) water applications only.
I purchased and installed one of these in 2016 and it's worked faultlessly to this day.
I dropped it one star simply because of price.
It's expensive, but much cheaper than running a traditional boiler ineffectively, and given that so many boiler installations are oversized this could be the best thing you could do, if you are in that situation.
It worked for me.
Kwakazaki
Closter, NJ
4 years ago
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I WOULD NOT BUY AGAIN
After installing it would not work consistantly, I had to finaly remove.
Merchant response
6 years ago
Sorry this mixing valve was working inconsistently. If it is defective, you can always call us at 888-757-4774 and we can file a warranty claim for replacement or refund.
Jon
Mt vernon
6 years ago
Verified Buyer
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