--- title: "Choosing and comparing — Wine Cellar Cooling Unit Guides" description: "Through-the-wall, ducted or split, how big a unit a cellar really needs, and whether an aging cellar system deserves another repair or makes way for a new one." url: "https://winecellarrepair.center/guides/choosing-and-comparing/" --- Which system suits the room, and keep or replace # Choosing and comparing guides. Through-the-wall, ducted or split, how big a unit a cellar really needs, and whether an aging cellar system deserves another repair or makes way for a new one. ## Choosing and comparing, guide by guide. A cellar cooling unit is chosen once and lived with for many years, usually by someone who did not build the room around it. The guides in this section are for owners planning a new cellar, owners whose existing unit has started to struggle, and anyone holding a repair estimate and wondering whether new equipment would be the better use of the money. [All 18 guides](https://winecellarrepair.center/guides/) 5-minute read ### [Through-the-wall, ducted or split: where the cellar's heat should go](https://winecellarrepair.center/guides/through-wall-ducted-or-split-system/) How the four layouts move heat, what each asks of the room behind the wall, how loud each is inside the cellar and what each means for service years later. 5-minute read ### [Sizing a cellar cooling unit: heat load, not cubic feet](https://winecellarrepair.center/guides/sizing-a-cellar-cooling-unit/) Reading a maker's load chart, the glass, walls and summer air that volume hides, and the runtimes that show a unit is too small or too big for its room. 5-minute read ### [Repair or replace a cellar cooling unit: check the room before the machine](https://winecellarrepair.center/guides/repair-or-replace-a-cellar-cooling-unit/) Keeping the collection safe while you decide, which parts are routine at any age, why a hot exhaust space ages compressors and what replacing a split system involves. ## Which system suits the room, and keep or replace. They compare layouts and decisions rather than makers: a self-contained unit set through a wall against a ducted cabinet in a mechanical room, a split system with its compressor outdoors, a ceiling evaporator that drains through a pump. Figures come from the manufacturers' own installation and owner's manuals, named beside each claim, so you can check them against the equipment you are considering. Three questions run through all of them. Where will the heat go once it leaves the cellar? How much heat will the room actually let in once glass, doors and the surrounding space are counted? And what will this equipment need years from now, when a fan tires, a drain clogs or refrigerant work is due? We write from the service side, so these pages say less about finishes and more about access panels, drain routes, clearances and line sets. Those details rarely appear in a brochure and always come up on a service visit, and knowing them before a purchase can save the cellar a difficult summer. [Not sure where to start?](https://winecellarrepair.center/guides/#start-here) ### The short answer Through-the-wall, ducted or split: where the cellar's heat should go The types of wine cellar cooling systems differ mainly in where the heat goes. ### The short answer Sizing a cellar cooling unit: heat load, not cubic feet Sizing a wine cellar cooling unit means matching its rated output, in BTU per hour at your cellar temperature, to the room's heat load. ### The short answer Repair or replace a cellar cooling unit: check the room before the machine Whether to repair or replace a wine cellar cooling unit depends on three things: which part failed, whether the room caused it, and what kind of system it is. ## When reading is not enough. If the checks in these guides did not settle it, the visit picks up from there, stop by stop. [What repairs cost](https://winecellarrepair.center/cost/) 1. 01 The room and the unit, both measured 2. 02 The cause and the figure, before any work 3. 03 Common cellar parts in the van 4. 04 The cellar heading back to 55°F ## The problems these answer. Each has a page of its own, with the causes in the order worth checking. [All 17 problems](https://winecellarrepair.center/problems/) The collection is exposed ### Wine Cellar Too Warm 6 causes, cheapest first Problem ### Cellar Cooling Unit Exhaust Overheating 5 causes, cheapest first Problem ### Cellar Cooling Unit Loud or Vibrating 5 causes, cheapest first The collection is exposed ### Cellar Cooling Unit Leaking Water 6 causes, cheapest first For the heart of your home. ## Questions about choosing and comparing. ### Which kind of cellar cooling system is most common in homes? Self-contained through-the-wall units, because they need one framed opening and a dedicated circuit. They depend entirely on the room behind them, which is why ducted and split systems take over in cellars surrounded by living space. ### Can I size a unit from cubic feet alone? Only as a first guess. Insulation, glass, the door and the temperature of the surrounding space can change the heat load enough to move a room up a model, which is why makers publish charts and calculators. ### Is repair usually cheaper than a new unit? For fans, probes, controllers and condensate pumps, yes, by a wide margin. The question gets harder with compressor or refrigerant failures, and harder still when the room itself caused the wear. ### Do these guides recommend particular manufacturers? No. We repair cooling equipment from many makers and quote their manuals where they publish a figure, but the choice between them is yours. ## The other sections. Split by what you are trying to find out rather than by which part of the appliance it concerns. [All guides](https://winecellarrepair.center/guides/) What the room and the unit are telling you ### [Common problems](https://winecellarrepair.center/guides/common-problems/) - [Why the cellar will not hold 55°F: the room, the exhaust side or the unit](https://winecellarrepair.center/guides/why-the-cellar-will-not-hold-55-degrees/) - [Why the cellar unit drips water, and which side of the wall it lands on](https://winecellarrepair.center/guides/why-the-cellar-unit-drips-water/) - [Why the evaporator ices over, and what the ice pattern reveals](https://winecellarrepair.center/guides/why-the-evaporator-ices-over/) Checks an owner can make in the cellar ### [Troubleshooting](https://winecellarrepair.center/guides/troubleshooting/) - [Cellar cooling checks before booking: twenty minutes on both sides of the wall](https://winecellarrepair.center/guides/cellar-cooling-checks-before-booking/) - [Reading the cellar controller: set point, probes, modes and alarms](https://winecellarrepair.center/guides/reading-the-cellar-controller/) - [Find the cooling unit model plate before the visit](https://winecellarrepair.center/guides/find-the-cooling-unit-model-plate/) Habits that keep the unit off our schedule ### [Maintenance and prevention](https://winecellarrepair.center/guides/maintenance-and-prevention/) - [Cleaning the condenser coil and filters of a cellar unit](https://winecellarrepair.center/guides/cleaning-the-condenser-and-filters/) - [Keeping the condensate line clear, from drip pan to drain](https://winecellarrepair.center/guides/keeping-the-condensate-line-clear/) - [A yearly cellar cooling check, done in spring](https://winecellarrepair.center/guides/a-yearly-cellar-cooling-check/) The bottles first, then the wiring and the floor ### [The collection, power and water](https://winecellarrepair.center/guides/safety-and-food/) - [Protecting the Cellar During an Outage: Door Shut, Breaker Off, Thermometer Outside](https://winecellarrepair.center/guides/protecting-the-cellar-during-an-outage/) - [Water From the Cellar Unit Near Wiring: Circuit Off First, Then Trace the Drain](https://winecellarrepair.center/guides/water-from-the-unit-near-wiring/) - [Moving Bottles When the Cellar Warms: What Leaves First and Where It Waits](https://winecellarrepair.center/guides/moving-bottles-when-the-cellar-warms/) The room, the opening, the door and where the heat goes ### [Installation and setup](https://winecellarrepair.center/guides/installation-and-setup/) - [Vapor Barrier and Insulation for a Cellar: The Envelope the Unit Depends On](https://winecellarrepair.center/guides/vapor-barrier-and-insulation-for-a-cellar/) - [Where the Exhaust Heat Goes: The Room Behind a Cellar Cooling Unit](https://winecellarrepair.center/guides/where-the-exhaust-heat-goes/) - [A Cellar Door That Seals: Weatherstripping, the Bottom Edge and Glass](https://winecellarrepair.center/guides/a-cellar-door-that-seals/) Not sure which section? ### Start from your question The four questions most visits start with, each with the guide that answers it. 18 guides Where to start Where to start --- **[Read on the site: Choosing and comparing — Wine Cellar Cooling Unit Guides](https://winecellarrepair.center/guides/choosing-and-comparing/)** **[Book a visit with WineCellarRepair.center](https://winecellarrepair.center/schedule/)**