Heat Dissipated By a Freezer's Condensing Unit

  • Thread starter vta10
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I am trying to come up with a way to utilize the heat that is being dissipated by a huge freezer's condensing unit. Currently the heat is being dumped permanently in the plenum.
One of the possibilities that a leaning for the most is using the heat that is being dissipated during the heating days and exhaust it during the cooling days.

Any suggestions on how to quantify the heat that is being dissipated by the condenser unit?

Heat Dissipated By a Freezer's Condensing Unit
 
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I'm not sure that there is much to be gained from here. If you add any sort of device that adds thermal resistance to the unit such as a heat engine which runs off the heat from the condenser you will reduce the efficiency of the freezer. Adding something to the cooling unit will increase the temperature of the unit (assuming the same throughput of heat) reducing the efficiency of the system.

As for rejecting the heat to outdoors to reduce indoor heating (or reduce air conditioning load) will see a similar decrease in the freezer efficiency. Theoretically you could combine the heat pump from the freezer to your water heater which could potentially improve the efficiency of the whole system combined but it just isn't really worth it.

A better method for increasing efficiency of a freezer is to simply keep the cooling coils dust free so they dissipate the heat with less work. Using a better heat sink such as cool water from a swimming pool, lake or river are more efficient then rejecting heat to hotter sinks such as air on a warm day.
 

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