Question about Office Equipment & Supplies
The PowerStar AE115 unit replaces the PS19T model which has been discontinued.
Posted on Dec 01, 2014
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Posted on Jan 02, 2017
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This model is known to have problems with its
Thermal Cutout this regulates the maximum water temp and can cause the unit to
overheat when it does not shut off the heat source. In some residences low water flow and or a
obstruction (common if you have well water) in the filtration and water
treatment system can cause the same problem.
Basically the unit can have overheating problems and the heat exchange
coils are be prone the effects of hard water (if that applies to your water
supply) and can lead to future service of descaling the units coil/coils (can
be expensive). Buying any used unit with many mechanical parts and other components always have the potential to have problems new so i would not recommend a used unit of this type.
unit is limited due to the fact that the unit require incoming water to be
cold and you cant use any sources of pre heated water (many people are starting
to utilize alternative energies such as solar water heaters, wood boilers, and
other relatively free or low cost). For example, using recovered heat from a
boiler or indirect hot water tank or other to reduce the energy (cost) by
raising the systems initial water temperature.
Are you heating a concrete floor with radiant
heating? if so it would be far more cost effective to use either a loop off
your existing system (a new zone) or you could add a oil fired or LP (gas)
fired water heater and utilize the efficiency of a separate system and the fact that
a hot water heater stores and super insulates the water it heats.
if you have any questions please feel free to let
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