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Wine Guardian Through-The-Wall Wine Cooling Units

(11 products)

How Through-the-Wall Cooling Works

A through-the-wall wine cellar cooling unit is a self-contained system that installs between the studs of a cellar or display wall, drawing heat out of the wine room and exhausting it into an adjacent interior space, with no ductwork or remote condenser required.

Wine Guardian builds three TTW series, Classic, Sentinel, and Defender, across three capacity classes (roughly 1,000, 2,000, and 3,500 BTU/h) to match cellars from a single wine display up to a mid-sized room. Every unit ships with a built-in Bluetooth and NFC controller for temperature monitoring from the face of the unit or a smart device. These are the most accessible format in the broader wine cellar cooling unit range, chosen most often for DIY installs where running ducts or a split system is impractical.

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Self-Contained Cooling, Built to Install Yourself

Through-the-wall wine cellar cooling units are the simplest way to hold steady temperature in a small to mid-sized cellar. The unit sits between the wall studs, pulls heat out of the wine room, and exhausts it into an adjacent interior space, so there is no ductwork to run and no remote condenser to mount.

Every Wine Guardian TTW shares the same three capacity classes, so the real decision on this page is which series fits your cellar. Classic, Sentinel, and Defender differ in humidity control, sound treatment, and environmental rating, not in cooling power. The comparison below makes the difference clear.

Wine cellar cooled by a Wine Guardian through-the-wall cooling unit - Wine Guardian Dealer
3
Series: Classic, Sentinel, Defender
1,000–3,500 BTU/h
Capacity Classes
48 dBA
As Quiet As (Defender)
0 ducts
DIY, No Remote Condenser
Why Wine Guardian

TTW Key Features and Benefits

Precise temperature control - Wine Guardian Dealer

Precise Temperature

Holds steady cellar temperature across all three series.

Humidity control - Wine Guardian Dealer

Humidity Control

Sentinel and Defender add a humidity sensor for humidifier connection.

Sound reduction - Wine Guardian Dealer

Sound Reduction

Foam on Sentinel and Defender; Defender adds the ultra quiet package.

Eco-friendly refrigerant - Wine Guardian Dealer

Eco-Friendly Refrigerant

Low global warming potential 513A refrigerant.

DIY installation - Wine Guardian Dealer

DIY Install

Slides through a wall sleeve, with no remote condenser or ductwork.

Condensate evaporator - Wine Guardian Dealer

Condensate Evaporator

Sentinel and Defender manage condensate automatically.

Compare the Classic, Sentinel, and Defender Series

Feature Classic Sentinel Defender
1,000 / 2,000 / 3,500 BTU/h capacity options
230V 50Hz or 120V 60Hz power supply
USA-designed and assembled
Coated evaporator coil
Fail-safe protections
Eco-friendly refrigerant
Bluetooth and NFC controls
Humidity sensor
Condensate evaporator
Sound reduction foam
Ultra quiet package
Exterior wall package
Electric heater

Classic suits value-focused buyers in stable interior rooms, Sentinel is the versatile choice for most home cellars, and Defender is built for the most demanding environments.

Choose Your Series

Which TTW Series Is Right for Your Cellar

Classic, the value choice

Essential precise temperature control in a streamlined unit. Best for stable interior rooms where humidity is already in range and ultra-quiet operation is not the priority.

Sentinel, the versatile choice

Adds a humidity sensor, condensate evaporator, and sound reduction foam. The most popular pick for typical home cellars and wine displays.

Defender, the most demanding

Adds the ultra quiet package, exterior wall package (rated 0 to 125 degrees Fahrenheit ambient, coated condenser coil), and an electric heater for cold spaces.

If your cellar needs integrated humidity control, choose the Sentinel series or a Defender. If the unit will exhaust into a hot garage or attic, only the Defender exterior wall package is rated for it. For larger rooms or whole-cellar zoning, consider ducted cooling systems, or for a frameless glass wine wall see the ductless split systems. Not sure where to start? Compare all wine cellar cooling units side by side.

Watch

See the TTW Range in Action

Wine Guardian walks through how the through-the-wall family installs, how the built-in Bluetooth and NFC controller works, and how to match a unit to your cellar size.

Prefer to talk it through with a specialist? Call 1-800-260-1712 for free sizing and configuration help.

Wine display wall cooled by a Wine Guardian through-the-wall unit - Wine Guardian Dealer
Frequently Asked Questions About Through-the-Wall Units
How do I determine the size of a through-the-wall wine cellar cooling unit?

Sizing depends on cellar volume, insulation, glass area, ambient temperature, and door seals, not floor space alone. The TTW range covers roughly 1,000 to 3,500 BTU per hour. Confirm the right capacity with Wine Guardian's sizing calculator and a qualified HVAC professional before purchase.

What is the difference between a split system and a through-the-wall cooling unit?

A through-the-wall unit is self-contained and installs between studs, exhausting into an adjacent interior room with no ductwork or remote condenser. A split system separates the evaporator and condenser, letting the noisy components sit remotely, which suits larger or sound-sensitive installations.

Which Wine Guardian TTW series controls humidity?

The Sentinel and Defender series include a humidity sensor (a combined thermostat and humidistat) for humidifier connection. The Classic series does not include a humidity sensor, so choose Sentinel or Defender if you need integrated humidity control in your cellar.

Can a through-the-wall unit be installed without a contractor?

Yes. TTW units are designed for DIY installation by sliding the unit through a wall sleeve or mounting it to the studs, so a licensed contractor is not required. Confirm placement, electrical supply, and ventilation with a qualified professional for your specific cellar.

What does the Defender exterior wall package add?

The Defender series adds an exterior grille and a coated condenser coil rated for 0 to 125 degrees Fahrenheit ambient, so the unit can exhaust into an unconditioned space such as a garage or attic. It also adds an electric heater and the ultra quiet package.

Which current model replaces the Wine Guardian TTW009 or TTW018?

The TTW01B replaces the discontinued 1,000 BTU per hour class TTW009, and the TTW02B replaces the 2,000 BTU per hour class TTW018. The newer B series adds Bluetooth and NFC controls, a coated evaporator coil, and updated fail-safe protections.

How quiet is a through-the-wall wine cellar cooling unit?

As low as about 48 dBA at six feet on the TTW01B Defender, comparable to a quiet library or moderate rainfall. Sentinel and Defender add sound reduction foam, and the Defender ultra quiet package reduces operating noise further.

Not Sure Which TTW Fits Your Cellar?

Talk to a wine cooling specialist about sizing, series choice, and installation for your space. This guidance is general and intended to help narrow the selection. Final sizing, installation design, and electrical requirements should be confirmed with Wine Guardian documentation and a licensed HVAC professional.