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Wine Guardian WG40 Ducted Wine Cellar Cooling Unit 50 HZ - Upgraded! D025 Standard
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Wine Guardian Ducted Wine Cellar Cooling Systems
Wine Guardian WG40 Ducted Wine Cellar Cooling Unit (50 Hz)
The Wine Guardian WG40 Ducted Wine Cellar Cooling Unit (50 Hz) is a fully ducted, self-contained wine cellar cooling system designed for small to medium residential and commercial wine cellars from 7 to 56 cubic meters. With cooling capacity from 0.26 to 0.858 kW, the WG40 keeps cooling equipment hidden outside the cellar while delivering conditioned air through ductwork for quiet, discreet, and reliable wine storage.
Designed for 7–56 m³ wine cellars
50 Hz system for Europe, Asia, Africa, Australia, and New Zealand
Fully ducted, self-contained configuration
Remote equipment placement for quieter cellar operation
Compatible with Wine Guardian humidifier options
Ideal for custom wine rooms, restaurants, and hospitality projects
Important: Contractor installation is recommended. The WG40 is a 50 Hz system commonly used in most of Europe, Asia, Africa, Australia, and New Zealand. If you need a 60 Hz system for North or South America, consider the Wine Guardian D025 Ducted Wine Cellar Cooling Unit 60 Hz.
Quick Specifications
Specification
Details
Model
WG40
System Type
Fully ducted, self-contained wine cellar cooling unit
Line Frequency
50 Hz
Cooling Capacity
0.26 – 0.858 kW
Recommended Cellar Volume
7 – 56 m³
Electrical
240/1/50
Dimensions
85 cm L × 42 cm W × 39.5 cm H
Weight
35 kg
Best For
Small to medium wine cellars from 7 to 56 m³
Luxury residential wine rooms
Restaurants and hospitality wine storage areas
Projects where equipment should be hidden from the cellar
Installations requiring quiet operation inside the wine room
50 Hz electrical environments
Not Recommended For
Wine cellars larger than 56 m³
Projects requiring 60 Hz electrical service
Through-the-wall installations
Uninsulated or poorly vapor-sealed wine rooms
Spaces without room for duct routing
Product Overview
The Wine Guardian WG40 is built for wine cellar owners who want a professional ducted cooling solution without placing visible cooling equipment inside the wine room. Because the unit is installed outside the cellar and connected through ductwork, it supports a cleaner cellar design, quieter storage environment, and more flexible equipment placement.
This makes the WG40 especially useful for custom residential wine cellars, luxury home projects, restaurants, hotels, tasting rooms, and commercial wine displays where both performance and presentation matter.
Why Choose a Ducted Wine Guardian WG40 System?
Hidden Equipment Placement
The cooling unit can be installed outside the wine room, helping preserve the cellar’s design, racking layout, and premium visual finish.
Quiet Cellar Experience
Remote equipment placement helps reduce the amount of mechanical noise heard inside the wine cellar.
Flexible Duct Routing
The ducted design allows conditioned air to be supplied and returned through planned duct pathways for cleaner integration into the cellar layout.
Self-Contained System
The WG40 includes the key refrigeration components in one self-contained system, simplifying equipment planning compared with split configurations.
Humidity Compatibility
The system can be paired with Wine Guardian humidification options to help support proper wine storage conditions.
Service-Friendly Design
Wine Guardian ducted systems are designed for field serviceability, making maintenance more practical for qualified service professionals.
Advantages and Limitations
Advantages
Cleaner wine cellar appearance
Reduced visible equipment inside the cellar
Quiet wine room operation
Flexible design for custom cellar layouts
Suitable for residential and commercial use
Compatible with ducting, control, and humidifier options
Limitations
Requires ductwork
Requires proper cellar insulation and vapor barrier construction
Requires condensate drain planning
Contractor installation is recommended
Not compatible with 60 Hz electrical service
May not be ideal for very small projects where a through-wall unit is sufficient
Installation Requirements
Professional installation is recommended for the WG40. Proper system sizing, duct routing, insulation, vapor sealing, and drainage are critical for reliable wine cellar cooling performance.
Wine cellar must be properly insulated and vapor sealed.
Supply and return duct pathways must be planned before installation.
A condensate drain connection is required.
Electrical service must match 240/1/50 requirements.
The unit should be placed where service access is available.
Airflow paths should remain unobstructed.
Cellar sizing should be confirmed before purchase.
Humidity Considerations
Proper wine cellar humidity helps protect cork integrity, reduce evaporation risk, and support long-term wine storage quality. Temperature control alone may not be enough for every cellar, especially in dry climates or tightly conditioned environments.
The WG40 can be paired with Wine Guardian humidifier options, including integrated and freestanding configurations. For more guidance, read the Wine Cellar Humidity Guide.
Technical Specifications
Technical Detail
WG40 Specification
Model
WG40
Line Frequency
50 Hz
Capacity
0.26 – 0.858 kW
Wine Cellar Volume
7 – 56 m³
Length
85 cm
Width
42 cm
Height
39.5 cm
Weight
35 kg
Electrical
240/1/50
WG40 vs WG75 vs WG100 Model Comparison
Choose the Wine Guardian model based on cellar volume, heat load, construction quality, and installation environment. The WG40 is the smallest 50 Hz ducted option listed here, while the WG75 and WG100 support larger wine cellars.
Model
Recommended Cellar Volume
Best Use Case
WG40
7 – 56 m³
Small to medium residential or commercial wine cellars
Wine Guardian accessories and upgrade bundles help adapt the system to specific installation conditions, control preferences, and humidity needs.
Cooling Options
Upgraded D025 Standard
If you need a comparable 60 Hz system, choose the Wine Guardian D025 ducted wine cooling system instead of the WG40 50 Hz model.
Upgraded D025 All Wine Temperatures (AWT)
Designed for applications requiring a wider temperature range for serving temperatures, with factory-mounted heater and extended controls.
Upgraded D025 Extreme Climate Protection
Designed to protect the cooling system in applications exposed to very low or elevated condenser air temperatures.
Upgraded D025 Ultimate Bundle
Combines All Wine Temperatures and Extreme Climate Protection features for broader environmental control.
Ducting Options
Duct Collar Return Inlet
Pulls air from the wine room back to the wine cellar cooling system.
Duct Collar Supply Outlet
Delivers conditioned air from the cooling unit into the wine room.
Combo Duct Kit Supply, Return, and Flex Duct
Includes duct collar supply outlet, duct collar return inlet, and flex duct for condenser air management.
Control Options
Remote Interface Controller
Allows monitoring and adjustment of temperature and humidity conditions from a convenient location inside or outside the wine cellar.
Remote Sensor
Measures temperature and humidity in the wine cellar and is useful for larger rooms, multiple-room layouts, or averaging conditions across different areas.
Humidifier Options
Integrated Humidifier
Attaches directly to the Wine Guardian cooling system and uses the same power source and remote controller.
Freestanding Humidifier Wall Mount
Includes a power-control cable to connect to the Wine Guardian cooling system and a wall-mount bracket for flexible placement.
Freestanding Humidifier Wall Mount Bracket - Independent
Includes wall mount bracket, power cord, and humidistat for use in wine cellars without a Wine Guardian cooling system.
Warranty Option
Wine Guardian 3 Year Extended Compressor Warranty
This option extends the warranty period for the compressor, evaporator coil, and condenser coil parts by three years.
Product Videos
Wine Guardian Ducted Wine Conditioning Systems
Wine Guardian Ducted Wine Conditioning Systems
Features and Benefits of Wine Guardian Ducted Wine Cooling Systems
Wine Guardian Sentinel Series Wine Cellar Cooling Units
Wine Guardian warrants, to the original buyer, its goods and all parts thereof to be free from defects in material and workmanship for a period of two years from the date of invoicing, assuming normal use and service.
Wine Coolers Empire is a trusted dealer of premium wine cellar refrigeration units, commercial wine cellar cooling units, residential wine cellar coolers, wine room humidifiers, and cellar design products.
Read customer feedback on our Customer Reviews page, or contact our team for help selecting the right cooling system.
For order processing, shipping options, and delivery times, please visit our Shipping Policy.
Wine Coolers Empire Expert Recommendation
The Wine Guardian WG40 is best suited for collectors, designers, builders, and hospitality professionals planning a small-to-medium wine cellar where quiet operation and a clean finished appearance are priorities. Its ducted design is especially valuable when the cooling equipment should be hidden from the wine room.
Choose the WG40 if your cellar is within the 7–56 m³ range and your project uses 50 Hz electrical service. For larger cellars, compare the WG75 and WG100. For North or South American installations requiring 60 Hz power, choose the D025 instead.
Need Help Choosing the Right Wine Cellar Cooling System?
Wine Coolers Empire offers free professional wine cellar design planning to help you select the correct cooling system, racking layout, and cellar equipment for your project.
Cooling capacity guidance
Cellar sizing support
Ducted system planning
Humidity recommendations
Product selection assistance
Call +1-888-407-7770 or email support@winecoolersempire.com for expert assistance.
The WG40 is built to cool wine cellars up to 1,100 cubic feet, assuming the space is well insulated, sealed, and constructed with a vapor barrier.
Yes. This system is built for 50 Hz electrical environments, which are standard in most countries outside of North America. It’s ideal for international customers in Europe, Asia, Australia, and similar regions.
Yes. The WG40 is a fully ducted self-contained system, meaning conditioned air is delivered and returned via ductwork. This allows the unit to be installed outside the wine cellar for quiet, hidden operation.
The WG40 is an air-cooled system, which vents heat into the surrounding air. This makes it easier to install in spaces where water connections are not available or desired.
Yes. The unit must be installed by a licensed HVAC technician, especially to ensure safe setup in 50 Hz electrical systems. Professional installation is also required for warranty activation.
Yes. Since the unit is installed outside the cellar and air is ducted in, the WG40 provides whisper-quiet performance within the wine room — ideal for display or residential spaces.
Wine Guardian includes a 2-year parts and labor warranty. Warranty coverage is valid only with professional installation and product registration."]
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Wine Guardian WG40 Ducted Wine Cellar Cooling Unit 50 HZ
Regular priceFrom$6,043.00
Unit price
Wine Guardian Ducted Wine Cellar Cooling Systems
Wine Guardian WG40 Ducted Wine Cellar Cooling Unit (50 Hz)
The Wine Guardian WG40 Ducted Wine Cellar Cooling Unit (50 Hz) is a fully ducted, self-contained wine cellar cooling system designed for small to medium residential and commercial wine cellars from 7 to 56 cubic meters. With cooling capacity from 0.26 to 0.858 kW, the WG40 keeps cooling equipment hidden outside the cellar while delivering conditioned air through ductwork for quiet, discreet, and reliable wine storage.
Designed for 7–56 m³ wine cellars
50 Hz system for Europe, Asia, Africa, Australia, and New Zealand
Fully ducted, self-contained configuration
Remote equipment placement for quieter cellar operation
Compatible with Wine Guardian humidifier options
Ideal for custom wine rooms, restaurants, and hospitality projects
Important: Contractor installation is recommended. The WG40 is a 50 Hz system commonly used in most of Europe, Asia, Africa, Australia, and New Zealand. If you need a 60 Hz system for North or South America, consider the Wine Guardian D025 Ducted Wine Cellar Cooling Unit 60 Hz.
Quick Specifications
Specification
Details
Model
WG40
System Type
Fully ducted, self-contained wine cellar cooling unit
Line Frequency
50 Hz
Cooling Capacity
0.26 – 0.858 kW
Recommended Cellar Volume
7 – 56 m³
Electrical
240/1/50
Dimensions
85 cm L × 42 cm W × 39.5 cm H
Weight
35 kg
Best For
Small to medium wine cellars from 7 to 56 m³
Luxury residential wine rooms
Restaurants and hospitality wine storage areas
Projects where equipment should be hidden from the cellar
Installations requiring quiet operation inside the wine room
50 Hz electrical environments
Not Recommended For
Wine cellars larger than 56 m³
Projects requiring 60 Hz electrical service
Through-the-wall installations
Uninsulated or poorly vapor-sealed wine rooms
Spaces without room for duct routing
Product Overview
The Wine Guardian WG40 is built for wine cellar owners who want a professional ducted cooling solution without placing visible cooling equipment inside the wine room. Because the unit is installed outside the cellar and connected through ductwork, it supports a cleaner cellar design, quieter storage environment, and more flexible equipment placement.
This makes the WG40 especially useful for custom residential wine cellars, luxury home projects, restaurants, hotels, tasting rooms, and commercial wine displays where both performance and presentation matter.
Why Choose a Ducted Wine Guardian WG40 System?
Hidden Equipment Placement
The cooling unit can be installed outside the wine room, helping preserve the cellar’s design, racking layout, and premium visual finish.
Quiet Cellar Experience
Remote equipment placement helps reduce the amount of mechanical noise heard inside the wine cellar.
Flexible Duct Routing
The ducted design allows conditioned air to be supplied and returned through planned duct pathways for cleaner integration into the cellar layout.
Self-Contained System
The WG40 includes the key refrigeration components in one self-contained system, simplifying equipment planning compared with split configurations.
Humidity Compatibility
The system can be paired with Wine Guardian humidification options to help support proper wine storage conditions.
Service-Friendly Design
Wine Guardian ducted systems are designed for field serviceability, making maintenance more practical for qualified service professionals.
Advantages and Limitations
Advantages
Cleaner wine cellar appearance
Reduced visible equipment inside the cellar
Quiet wine room operation
Flexible design for custom cellar layouts
Suitable for residential and commercial use
Compatible with ducting, control, and humidifier options
Limitations
Requires ductwork
Requires proper cellar insulation and vapor barrier construction
Requires condensate drain planning
Contractor installation is recommended
Not compatible with 60 Hz electrical service
May not be ideal for very small projects where a through-wall unit is sufficient
Installation Requirements
Professional installation is recommended for the WG40. Proper system sizing, duct routing, insulation, vapor sealing, and drainage are critical for reliable wine cellar cooling performance.
Wine cellar must be properly insulated and vapor sealed.
Supply and return duct pathways must be planned before installation.
A condensate drain connection is required.
Electrical service must match 240/1/50 requirements.
The unit should be placed where service access is available.
Airflow paths should remain unobstructed.
Cellar sizing should be confirmed before purchase.
Humidity Considerations
Proper wine cellar humidity helps protect cork integrity, reduce evaporation risk, and support long-term wine storage quality. Temperature control alone may not be enough for every cellar, especially in dry climates or tightly conditioned environments.
The WG40 can be paired with Wine Guardian humidifier options, including integrated and freestanding configurations. For more guidance, read the Wine Cellar Humidity Guide.
Technical Specifications
Technical Detail
WG40 Specification
Model
WG40
Line Frequency
50 Hz
Capacity
0.26 – 0.858 kW
Wine Cellar Volume
7 – 56 m³
Length
85 cm
Width
42 cm
Height
39.5 cm
Weight
35 kg
Electrical
240/1/50
WG40 vs WG75 vs WG100 Model Comparison
Choose the Wine Guardian model based on cellar volume, heat load, construction quality, and installation environment. The WG40 is the smallest 50 Hz ducted option listed here, while the WG75 and WG100 support larger wine cellars.
Model
Recommended Cellar Volume
Best Use Case
WG40
7 – 56 m³
Small to medium residential or commercial wine cellars
Wine Guardian accessories and upgrade bundles help adapt the system to specific installation conditions, control preferences, and humidity needs.
Cooling Options
Upgraded D025 Standard
If you need a comparable 60 Hz system, choose the Wine Guardian D025 ducted wine cooling system instead of the WG40 50 Hz model.
Upgraded D025 All Wine Temperatures (AWT)
Designed for applications requiring a wider temperature range for serving temperatures, with factory-mounted heater and extended controls.
Upgraded D025 Extreme Climate Protection
Designed to protect the cooling system in applications exposed to very low or elevated condenser air temperatures.
Upgraded D025 Ultimate Bundle
Combines All Wine Temperatures and Extreme Climate Protection features for broader environmental control.
Ducting Options
Duct Collar Return Inlet
Pulls air from the wine room back to the wine cellar cooling system.
Duct Collar Supply Outlet
Delivers conditioned air from the cooling unit into the wine room.
Combo Duct Kit Supply, Return, and Flex Duct
Includes duct collar supply outlet, duct collar return inlet, and flex duct for condenser air management.
Control Options
Remote Interface Controller
Allows monitoring and adjustment of temperature and humidity conditions from a convenient location inside or outside the wine cellar.
Remote Sensor
Measures temperature and humidity in the wine cellar and is useful for larger rooms, multiple-room layouts, or averaging conditions across different areas.
Humidifier Options
Integrated Humidifier
Attaches directly to the Wine Guardian cooling system and uses the same power source and remote controller.
Freestanding Humidifier Wall Mount
Includes a power-control cable to connect to the Wine Guardian cooling system and a wall-mount bracket for flexible placement.
Freestanding Humidifier Wall Mount Bracket - Independent
Includes wall mount bracket, power cord, and humidistat for use in wine cellars without a Wine Guardian cooling system.
Warranty Option
Wine Guardian 3 Year Extended Compressor Warranty
This option extends the warranty period for the compressor, evaporator coil, and condenser coil parts by three years.
Product Videos
Wine Guardian Ducted Wine Conditioning Systems
Wine Guardian Ducted Wine Conditioning Systems
Features and Benefits of Wine Guardian Ducted Wine Cooling Systems
Wine Guardian Sentinel Series Wine Cellar Cooling Units
Wine Guardian warrants, to the original buyer, its goods and all parts thereof to be free from defects in material and workmanship for a period of two years from the date of invoicing, assuming normal use and service.
Wine Coolers Empire is a trusted dealer of premium wine cellar refrigeration units, commercial wine cellar cooling units, residential wine cellar coolers, wine room humidifiers, and cellar design products.
Read customer feedback on our Customer Reviews page, or contact our team for help selecting the right cooling system.
For order processing, shipping options, and delivery times, please visit our Shipping Policy.
Wine Coolers Empire Expert Recommendation
The Wine Guardian WG40 is best suited for collectors, designers, builders, and hospitality professionals planning a small-to-medium wine cellar where quiet operation and a clean finished appearance are priorities. Its ducted design is especially valuable when the cooling equipment should be hidden from the wine room.
Choose the WG40 if your cellar is within the 7–56 m³ range and your project uses 50 Hz electrical service. For larger cellars, compare the WG75 and WG100. For North or South American installations requiring 60 Hz power, choose the D025 instead.
Need Help Choosing the Right Wine Cellar Cooling System?
Wine Coolers Empire offers free professional wine cellar design planning to help you select the correct cooling system, racking layout, and cellar equipment for your project.
Cooling capacity guidance
Cellar sizing support
Ducted system planning
Humidity recommendations
Product selection assistance
Call +1-888-407-7770 or email support@winecoolersempire.com for expert assistance.
