Wine Cellar Cooling Support FAQs
These FAQs help installers, trade buyers and project teams understand the main technical considerations for wine cellar cooling systems.They are intended as general guidance only. Final specification should reflect site conditions, product manuals and competent installer assessment.
Specification and sizing
What information do you need to size and quote a system?
Plans or dimensions, insulation build-up, glazing area, heat loads, target set point, plant location, and duct routes if applicable. Send drawings and we will recommend the correct model and configuration. Alternatively for a quick calculation use our product selection calculator.
Is room volume enough to choose a unit?
Room volume is a useful starting point, but not enough on its own. A small glazed wine wall may need more care than a larger insulated cellar. Heat gain, insulation, airflow, glazing, door seals and service access all matter.
What temperature should a wine cellar be kept at?
Many wine rooms are designed around 12 to 15°C for long-term storage. The exact set point depends on the collection, use of the space and project requirements.
Does humidity matter?
Yes. Wine benefits from stable conditions. Very dry air may affect corks over time. Excess humidity may increase condensation and mould risk. The room envelope, temperature, airflow and cooling method all influence humidity.
Does white wine and Champagne need to be stored at a lower temperature to red wine?
No. All wine types including white, red, sparkling and fortified should be stored at the same temperature for long-term cellaring. This should be 12-15 degrees celcius.
Keeping white wine in a fridge for long periods may negatively affect the cork, and slow down the natural maturation process.
Many wine collectors maintain a separate wine fridge or wine cabinet suitable for serving temperature white wine and Champagne.
For premium integrated wine cabinets and wine fridges suitable for serving temperature (5-7 degrees c), take a look at La Reserve wine galleries https://encool.co.uk/luxury-wine-cabinets
Installation
Who should install a split wine cellar cooling system?
Split systems should be installed by a suitably qualified F-gas engineer. Refrigerant pipework, evacuation, charging, pressure testing and commissioning require competent handling.
Are through-the-wall systems easier to install?
Through-the-wall systems are self-contained, so they avoid external refrigerant pipework. They still need correct positioning, heat rejection, condensate management and service access.
Where should the condenser be located?
The condenser must reject heat safely and effectively. Location depends on the system type, pipework route, ventilation, noise constraints, access and manufacturer guidance.
Contact the Encool team for technical support.
Is service access important?
Yes. Service access should be planned before installation. Filters, controls, drainage, pipework, electrical connections and key components need safe access for future maintenance.
Room Construction
Does a wine cellar need insulation?
Yes. The room should be built as a controlled environment. Poor insulation increases energy use, temperature instability and condensation risk.
Does a wine cellar need a vapour barrier?
A vapour barrier is strongly recommended for most controlled wine rooms. It helps reduce moisture movement into the cooled space and lowers condensation risk within the structure.
What happens if the wine room is not sealed properly?
Air leakage increases cooling load and humidity instability. It may cause condensation, temperature drift, short cycling and poor system performance.
Is standard plasterboard suitable for a wine room?
Wine room construction should be reviewed as a complete envelope. Moisture-resistant materials and correct detailing are often required, especially where the room operates below normal household temperature.
Glass, Doors and Condensation
Why does condensation appear on wine room glass?
Condensation forms when a surface falls below the dew point of the surrounding air. High room humidity, low glass surface temperature, poor glazing, weak seals or cold bridging may all contribute.
How to avoid condensation on my wine cellar glass or door frame?
Mitigate condensation risk on the outside of the temperature-controlled cellar by using argon filled double or tripple glazing, correct door seals, thermal breaks, stable room design (thermal insulation and vapour barrier).
If you have an existing cellar that has condensation forming on the outside of the glass and you have already checked seals etc, you may need to increase the set temperature of your cellar by a few degrees to avoid reaching the dew point, or cool the ambient space/decrease humidity.
Metal framed doors should have a thermally broken frame profile, or a low voltage heated glass/frame design.
If condensation is forming on the inside of the cellar, there maybe damp/water ingress which needs to be resolved. You may also need to intruduce controlled humidity, heating/cooling functionality and ensure suitable airflow.
Do glass wine walls need special planning?
Yes. It is more complex to successfully climate-control a smaller air volume such as a wine wall. A larger glass area can increases heat gain and condensation risk. The cooling system, airflow path, glazing specification, carcass insulation and door design should be considered together.
Ducting and Airflow
Why is airflow important?
Wine cellar cooling depends on controlled air movement. Poor airflow may create hot spots, cold spots, condensation or short cycling.
Where should supply and return grilles go?
Grille position depends on room layout, racking, glazing, door location and duct route. Supply and return air should not short-circuit. Air should move through the wine space effectively. Consult your wine cellar specialist or M&E consultant.
For specific recommendations on Encool's specialist cooling system products, contact our engineers for technical support at planning stage.
Are ducted systems quieter?
Ducted systems may reduce noise inside the wine room by locating equipment away from the space. Actual sound levels depend on product selection, duct design, grille selection and installation quality.
Commissioning and Maintenance
Why is airflow important?
Wine cellar cooling depends on controlled air movement. Poor airflow may create hot spots, cold spots, condensation or short cycling.
Where should supply and return grilles go?
Grille position depends on room layout, racking, glazing, door location and duct route. Supply and return air should not short-circuit. Air should move through the wine space effectively. Consult your wine cellar specialist or M&E consultant.
For specific recommendations on Encool's specialist cooling system products, contact our engineers for technical support at planning stage.
Are ducted systems quieter?
Ducted systems may reduce noise inside the wine room by locating equipment away from the space. Actual sound levels depend on product selection, duct design, grille selection and installation quality.
Buying from Encool
Do I need an F-Gas registered engineer?
For split systems, yes. Through-the-wall and self-contained units may not require refrigerant pipework on site, but installation should still follow the product manual and good practice.
How do I get help chosing a wine cellar cooling system?
Send room dimensions, construction details, glazing details, target temperature, proposed installation location and any drawings or photos. Encool will review the basic requirements and advise on suitable options.
You may also find our Encool calculator useful https://encool.co.uk/calculator