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What Is Rend Mix? Multi-path Mixing Distributor |
Full Details
in a printable format. (PDF)  |
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The
new patented rendeMIX multi-path mixing valve is the perfect solution
for your two temperature systems. Today’s complex heating
environments sometimes require heating system with two loops each
supporting different temperatures, for example one loop for
radiators and another loop for floor heating. The higher temperature is
generated directly by the boiler whereas the lower temperature is
obtained by mixing. Existing mixing valves use the hot supply water
exclusively and mix it with the cold return water of the floor heating
system. The remaining hot water usually still hot enough to be used for
the radiant loop, goes back, however unused, to the boiler. |
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| What is the Impact of This? |
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A
condensing boiler is a heat generator that extracts additional heat
from the hot flue gases by condensing the steam contained in the hot
flue gases on to a heat exchanger. Due to the fact that this kind of
condensation only happens below a certain temperature (the dew point),
the efficiency of theses boilers depends strongly on their return
temperature. |
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The Solution |
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| The new patented rendeMIX
multi-path mixing valve uses the heat of the return from the radiator
loop and thus cools down the return to the boiler much more than
traditional mixing systems do, which results in an increase of
efficiency up to 5 to 8 %. The mixing valve has three inlets (hot,
warm, and cold) and two outlets. Depending on the desired setting, one
single control unit connects two of the three inlets with the outlet,
in order to mix only hot with warm or warm with cold water. Together
with the supplied piping system it also replaces the traditional
primary/secondary piping needed for hydraulically separating the two
loops. There are more advantages when combining the system with solar
collectors, buffer tanks or heat pumps. |
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