Through-the-Wall Wine Cellar Cooling Units
It’s time to get serious about your fine wine collection. Wine Guardian patented Through-the-Wall (TTW) wine cellar cooling units bring exceptional airflow, optimal temperature control, and advanced connectivity features to ensure you enjoy 100% of the flavors of your wine.
Designed and assembled in the USA from commercial-grade components, TTW units combine maximum efficiency with unmatched reliability to create peak wine storage conditions for your small- to mid-sized wine room or wine wall.

Introducing the TTW Family
Wine Guardian offers an expanded range of Through-the-Wall (TTW) systems, each designed to meet specific wine storage needs. Available for all series, our TTW units come in a range of capacity options to suit your cellar or display size:

Classic
Series
For the value-conscious wine collector, the TTW Classic Series provides the essential features for precise temperature control in a simplified, streamlined unit.

Sentinel
Series
The TTW Sentinel Series is a versatile cooling system, perfect for a wide range of cellar or wine display applications.

Defender
Series
For the most demanding wine cellar applications, the TTW Defender Series maintains ideal cellar conditions in ambient temperatures from 0°F (-18°C) to 125°F (52°C), along with a variety of extra features.
Capacity Options
Available for all series
~1000 BTU/h (0.3 kW)
~2000 BTU/h (0.6 kW)
~3500 BTU/h (1.0 kW)

Download The TTW Brochure
Compare Models

Classic
Series

Sentinel
Series

Defender
Series
| FEATURE COMPARISON | Classic | Sentinel | Defender |
|---|---|---|---|
| 1000, 2000, and 3500 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 & NFC Controls | |||
| Humidity Sensor | |||
| Condensate Evaporator | |||
| Sound Reduction Foam | |||
| Ultra Quiet Package | |||
| Exterior Wall Package | |||
| Electric Heater |
TTW Cooling Unit Key Features & Benefits

Whisper-Quiet Operation
Designed to limit vibrations and operational noise that disturb the ambience of your wine space, TTWs can be as quiet as 48 dBA at 6 feet (2 meters).
Unrivaled Energy Efficiency
Optimized for maximum energy efficiency, the Wine Guardian TTW can save you hundreds in operation costs compared to other through-the-wall systems on the market. Save up to $4,400 in electricity bills over five years with select TTW models.


Precise Temperature & Humidity Control
The TTW can consistently achieve temperatures ranging from 42°F (6°C) to 75°F (24°C), minimizing fluctuations in your cellar that harm your wine collection. An optional free-standing humidifier can be installed to achieve a constant relative humidity of 55% – 65%.
Designed for the Do-It-Yourselfer
The TTW’s DIY-friendly design makes installation possible for any wine aficionado. Just insert the TTW into your cellar wall, make your drain connection if needed, plug it in, and enjoy your wine. A licensed contractor is not required. All TTW units are designed to fit legacy and competitor wall sleeves.
Eco-Friendly Refrigerant
Wine Guardian TTWs employ a non-flammable refrigerant with a low global warming potential in compliance with U.S. environmental regulations.
Fail-Safe Protections
The TTW’s advanced fail-safe features protect your system and cellar from:


Complete Cellar Control
With a built-in thermostat and humidistat, Wine Guardian lets you monitor temperature and humidity and control temperature right at the face of the TTW unit. Want to control and monitor the conditions from your smartphone, tablet, or smart home device? Not a problem. Thanks to the TTW controller’s Bluetooth® and NFC capabilities, you can connect to your TTW anywhere in your home — so you can monitor your wine cellar wherever is most convenient to you.
Choose Your Perfect Cooling Solution
Enhance your cellar with these additional features, standard with select series.
Sentinel and Defender Series

Sound Reduction Foam.
Internal sound attenuation material to reduce operational noise. (Sentinel Series, Defender Series)

Humidity Sensor.
Combined thermostat and humidistat to allow seamless humidifier connection and precise humidity control. (Sentinel Series, Defender Series)

Condensate Evaporator.
Re-evaporation system to prevent condensate buildup and leakage without the need for a drain line connection. Note: A drain connection may be required if the unit exhausts to an unconditioned space or the installed area has an inadequate vapor barrier. (Sentinel Series, Defender Series)
Defender Series Only

Ultra Quiet Package.
Additional sound reduction material for extra quiet operation. (Defender Series)

Exterior Wall Package.
Exterior-rated grille and coated condenser coil to allow for installation through an exterior wall—operates in ambient temperatures from 0°F (-18°C) to 125°F (52°C). (Defender Series)

Electric Heater.
Heating coil to warm cellar air when temperature drops below the set point. (Defender Series)
Wine Guardian has provided us with an excellent product and great customer service. I would be happy to refer them to anyone.
Through-the-Wall Cooling Units System Specifications
| Model | Capacity | Length | Width | Height | Electrical (V/ph/Hz) | Weight | Line Frequency |
|---|---|---|---|---|---|---|---|
TTW01B Classic |
1440 BTU/h @ 75 ºF (24 ºC). If you have different condensing side conditions, check our spec sheet for performance. |
25.8" |
14.1" |
15.75" |
120/1/60 |
58 lbs |
60 Hz |
TTW01B Sentinel |
1440 BTU/h @ 75 ºF (24 ºC). If you have different condensing side conditions, check our spec sheet for performance. |
27.6" |
14.1" |
15.75" |
120/1/60 |
58 lbs |
60 Hz |
TTW01B |
1440 BTU/h @ 75 ºF (24 ºC). If you have different condensing side conditions, check our spec sheet for performance. |
33.8" |
14.1" |
15.75" |
120/1/60 |
65 lbs |
60 Hz |
TTW02B Classic |
2,650 BTU/h @ 75ºF (24ºC). If you have different condensing side conditions, check our spec sheet for performance. |
25.8" |
14.1" |
15.75" |
120/1/60 |
64 lbs |
60 Hz |
TTW02B Sentinel |
2,650 BTU/h @ 75 ºF (24 ºC). If you have different condensing side conditions, check our spec sheet for performance. |
27.6" |
14.1" |
15.75" |
120/1/60 |
64 lbs |
60 Hz |
TTW02B Defender |
2650 BTU/h @ 75 ºF (24 ºC). If you have different condensing side conditions, check our spec sheet for performance. |
33.8" |
14.1" |
15.75" |
120/1/60 |
65 lbs |
60 Hz |
TTW04B Classic |
3,760 BTU/h @ 75 ºF (24 ºC). If you have different condensing side conditions, check our spec sheet for performance. |
25.8" |
14.1" |
15.75" |
120/1/60 |
71 lbs |
60 Hz |
TTW04B Classic |
3,760 BTU/h @ 75 ºF (24 ºC). If you have different condensing side conditions, check our spec sheet for performance. |
27.6" |
14.1" |
15.75" |
120/1/60 |
71 lbs |
60 Hz |
TTW01 Classic |
0.422 kW @ 24ºC. If you have different condensing side conditions, check our spec sheet for performance. |
66 cm |
36 cm |
40 cm |
240/1/50 |
26.3 kg |
50 Hz |
TTW01 Sentinel |
0.422 kW @ 24ºC. If you have different condensing side conditions, check our spec sheet for performance. |
70 cm |
36 cm |
40 cm |
240/1/50 |
26.3 kg |
50 Hz |
TTW01 |
0.422 kW to 0.258 kW |
86 cm |
36 cm |
40 cm |
240/1/50 |
29.5 kg |
50 Hz |
TTW02 Classic |
0.776 kW @ 24ºC. If you have different condensing side conditions, check our spec sheet for performance. |
66 cm |
36 cm |
40 cm |
240/1/50 |
29 kg |
50 Hz |
TTW02 Sentinel |
0.776 kW @ 24ºC (75ºF). If you have different condensing side conditions, check our spec sheet for performance. |
70 cm |
36 cm |
40 cm |
240/1/50 |
29 kg |
50 Hz |
TTW04 Classic |
1.101 kW @ 24ºC. If you have different condensing side conditions, check our spec sheet for performance. |
66 cm |
36 cm |
40 cm |
240/1/50 |
32.2 kg |
50 Hz |
TTW01 |
0.776 kW to 0.419 kW |
86 cm |
36 cm |
40 cm |
240/1/50 |
32.3 kg |
50 Hz |
TTW04 Sentinel |
1.101 kW @ 24ºC. If you have different condensing side conditions, check our spec sheet for performance. |
70 cm |
36 cm |
40 cm |
240/1/50 |
32.2 kg |
50 Hz |
Cooling capacity rated at 80°F(27°C) ambient. Many variables affect proper unit sizing, including type of construction, insulation values, amount of glass, residential vs. commercial applications, etc. Proper wine cellar cooling units size should only be determined by using the Wine Guardian sizing calculations.
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