The Three Main Types Of Wine Cellar Cooling Units
Through-the-wall cooling systems need no ductwork or refrigeration lines.
They can be a little noisier than the other systems, as the unit mounts right in the wall, and vents into an adjacent room. The rule of thumb is to vent into a room that's at least as big as your wine cellar.
If that's not possible, then you'll need to install one of the other types below. Many people who don't get this right, find that the cooling unit is very inefficient and leads to premature failure.
Ducted wine cellar cooling units also have both the compressor and the evaporator contained inside the unit.
They differ from through-the-wall systems because you can mount the unit anywhere
within @10-25 feet or so of your cellar, and simply run the ductwork back.
These systems can be mounted and ducted in various ways, depending on the model and your specific needs:
- floor mounted
- ceiling or joist mounted
- outside installations
- this is also the unit to mount in the attic if you need to
If you installed one of these units a good distance away, your wine cellar stays nice and quiet - with only the occasional whisper of air movement. They can also be installed yourself which is really nice.
Split wine cellar cooling units can be ducted or ductless.
Ducted-split models can have both the condenser and the evaporator mounted inside the unit itself, or separated by up to 100 feet. These units are usually installed outside the home where they can pick up fresh air and also vent the warm exhaust, with only the ductwork running in to the cellar. All of the heat and noise stays outside, which makes your cellar nice and quiet.
Ductless-split models usually have the evaporator installed at the top of the wall, or on the ceiling of the cellar. They too, are nice and quiet with the condenser being mounted outside.
Some models have a bottle probe that it monitors the temperature from. This is more accurate than monitoring the ambient air temperature. The probe is placed inside of a wine bottle filled with water to imitate the real thing.
Similar to a central A/C unit, you'll need to run refrigeration lines, so a licensed HVAC technician will have to install the unit for you.
Of all the units, the split system will hold and maintain the set temperature and humidity levels the best. The split cooling units are a premium quality system, and will generally last much longer than the other two types.
Tip: There are many cooling units that don't include an integrated humidifier. Mount a thermo-hygrometer inside your cellar to check the relative humidity. You might need to buy a humidifier separately if your wine cellar isn't located in a humid enough room.