5 Signs Your Wine Cooling System Is About to Fail
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Wine Guardian TTW04B Sentinel Through-The-Wall Wine Cellar Cooling Unit
Wine Guardian | SKU:
WGTTW04B00LCS2A0BHF
$6,129.00
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Wine Guardian TTW04B Sentinel Through-The-Wall Wine Cellar Cooling Unit is backordered and will ship as soon as it is back in stock.
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Wine Guardian TTW04B Sentinel Through-The-Wall Wine Cellar Cooling ...
$6,129.00
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THINKING ABOUT THE PERFECT WINE CELLAR? SAVE TIME AND MONEY—GET EXPERT ADVICE NOW!
Call our Wine Cellar Specialist at 1 (800) 260-1712 for FREE CONSULTATION!
Sentinel Series · Through-The-Wall
Wine Guardian TTW04B Sentinel Through-The-Wall Wine Cellar Cooling Unit
The Wine Guardian TTW04B Sentinel is a self-contained, through-the-wall wine cellar cooling unit that delivers a nominal 3,760 BTU/h of precise temperature and humidity control for larger residential and commercial cellars. It combines an eco-friendly refrigerant, a built-in humidity sensor, and an internal condensate evaporator that removes the need for a drain line, all in a streamlined, do-it-yourself design.
The TTW04B Sentinel is the mid-tier model in Wine Guardian's redesigned Through-the-Wall (TTW) line, sitting between the value-focused Classic and the exterior-rated Defender. It adds humidity sensing and an internal condensate evaporator to the Classic platform, making it the most versatile choice for collectors who want both temperature and humidity control without ductwork or a licensed contractor.
As an authorized Wine Guardian dealer, Wine Guardian Dealer offers the full TTW Sentinel line with expert selection support, so you can confirm the right capacity for your space before you buy.
3,760
BTU/h nominal
57.9dB
at 6 ft
42–75°F
cellar range
71lb
weight
Cooling capacity is rated under standard conditions. Actual sizing depends on cellar insulation, glass exposure, ambient temperature, and other factors. Always confirm the right model with Wine Guardian's sizing calculator and a qualified professional before purchase.
Who It Is For
Is the TTW04B Sentinel Right for You
✓ Ideal For
Homeowners and collectors with larger wine rooms, wine walls, or displays who want easy through-the-wall installation, both temperature and humidity control, and quiet operation, without ducting or a contractor.
× Consider Another Model If
You need exterior-wall installation rated for outdoor conditions (choose the TTW04B Defender), an even larger room (consider a Wine Guardian ducted or split system), or a budget unit without humidity sensing (choose the TTW04B Classic).
Key Features
TTW04B Sentinel Features and Benefits
| Feature | What it means for your cellar |
|---|---|
| Humidity Sensor | Combined thermostat and humidistat allows seamless integration with a Wine Guardian freestanding humidifier for full climate control. |
| Condensate Evaporator | Internal condensate re-evaporation system prevents leakage and often removes the need for a drain line. |
| Whisper-Quiet | Operates as quiet as 57.9 dB at 6 feet (2 m), preserving the ambiance of your wine space. |
| Eco-Friendly Refrigerant | Uses a low global-warming-potential refrigerant, meeting current US environmental standards. |
| Controls | Bluetooth & NFC Controls |
Triple fail-safe protection: a condensate overflow switch, a loss-of-charge switch, and an auto-reset high-pressure switch help prevent water damage, protect the compressor, and reduce system downtime.
See It in Action
See the TTW04B Sentinel in Action
Watch How It Works
See the Wine Guardian TTW Sentinel through-the-wall system in action and how its smart, self-contained design protects your collection.
- Through-the-wall installation, no ductwork
- Built-in humidity sensor and smart controls
- Whisper-quiet, fail-safe operation
Questions about fit? Call our specialists at (800) 260-1712.
Whisper-Quiet
How Quiet Is It
The TTW04B Sentinel measured at six feet, against everyday sounds.
60 dBNormal conversation
57.9 dBTTW04B Sentinel at 6 ft
55 dBElectric toothbrush
50 dBModerate rainfall
45 dBQuiet library
Installation
Installation Requirements
The TTW04B Sentinel is designed for do-it-yourself installation between standard wall studs. A wall sleeve or the included mounting bracket supports the unit, which slides through the opening to exhaust heat into an adjacent interior space.
Installs through an interior wall (not rated for exterior use)
Mounting bracket included; wall sleeve available separately
Exhausts heat into an adjacent, ventilated interior room
Internal condensate evaporator often eliminates a dedicated drain line
This is general guidance only. Final placement, electrical requirements, drainage, and ventilation should be confirmed with Wine Guardian's official documentation and a licensed HVAC professional or qualified contractor.
In the Box
What’s Included
TTW04B Sentinel cooling unit
Mounting bracket
Humidity sensor
Condensate evaporator
Owner's manual, brochure, and spec sheet
Specifications
Full Technical Specs
ModelTTW04B Sentinel
Cooling Capacity2,350–4,270 BTU/h (nominal 3,760 BTU/h @ 75°F)
Line Frequency60Hz (USA, Canada, and most of Central & South America)
Plug TypeStandard USA Type B
Dimensions27.6 × 14.1 × 15.75 in
Weight71 lbs
Temperature RangeMaintains approximately 55°F–58°F cellar conditions
Humidity55%–65% RH with optional freestanding humidifier
Noise LevelAs low as 57.9 dB at 6 ft (2 m)
ConfigurationSelf-contained, through-the-wall, air-cooled, ductless
Exterior RatedNo, interior installation only
Optional Accessories
Compatible Add-Ons
Wall Sleeve and Hardware
94H0054-00
Remote Interface Controller
91H0105-01
Exhaust Duct Collar
19H0018-00
Wine Cellar Humidifier
99H0174-21
Browse all parts and accessories, or explore related ducted and ductless split systems.
Related Models
Compare Across the Line
Browse the full Through-the-Wall range or all wine cellar cooling units.
FAQ
Frequently Asked Questions About the TTW04B Sentinel
What size wine cellar does the Wine Guardian TTW04B Sentinel cool?
The TTW04B Sentinel delivers a nominal 3,760 BTU/h at 75°F (range 2,350–4,270), the largest model in the through-the-wall line, sized for larger residential and commercial wine cellars and displays. Because cooling load depends on insulation, glass exposure, and ambient temperature, confirm the right capacity with Wine Guardian's sizing calculator and a qualified professional before purchase.
Does the Wine Guardian TTW04B Sentinel control humidity?
Yes. The TTW04B Sentinel includes a built-in humidity sensor that combines a thermostat and humidistat. Paired with an optional Wine Guardian freestanding humidifier, it helps maintain roughly 55%-65% relative humidity for proper long-term wine storage.
How do I install a Wine Guardian through-the-wall cooling unit?
The TTW04B Sentinel is designed for do-it-yourself installation between standard wall studs, using the included mounting bracket or a wall sleeve. It exhausts heat into an adjacent interior space and is not rated for exterior use. Final placement, electrical, and ventilation requirements should be confirmed with Wine Guardian's documentation and a licensed professional.
How quiet is the Wine Guardian TTW04B Sentinel?
The TTW04B Sentinel operates at about 57.9 dBA, helped by its sound reduction foam. That keeps cellar noise reasonable for the largest through-the-wall unit while it maintains temperature and humidity.
What is the difference between the TTW04B Sentinel and the TTW04B Classic?
Both share the same 3,760 BTU/h cooling capacity, but the Sentinel adds a humidity sensor, an internal condensate evaporator, and sound reduction foam. The Classic is a value option without humidity control. Choose Sentinel for integrated temperature and humidity management.
Does the Wine Guardian TTW04B Sentinel need a drain line?
The TTW04B Sentinel includes an internal condensate evaporator that re-evaporates condensate, which often removes the need for a dedicated drain line. Final drainage requirements should be confirmed with Wine Guardian's documentation and a qualified professional.
Need Help Confirming the Right Wine Guardian Model?
Not sure if the TTW04B Sentinel is sized correctly for your cellar? Our Wine Cellar Specialists can confirm the right capacity and configuration for your space.
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