Wine Guardian TTW02B Sentinel Through-The-Wall Wine Cellar Cooling Unit
Self-contained through-the-wall unit for small to mid-sized wine rooms: 2,650 BTU/h at 75°F, 120 V plug-in, humidity sensor built in
- Wine Guardian publishes the TTW02B Sentinel at 2,650 BTU/h at 75°F, the same nominal capacity it publishes for the TTW02B Classic and the TTW02B Defender.
- The TTW02B Sentinel exhausts condenser heat out of its back and into whatever space sits on the other side of the wall, so that room absorbs the heat the cellar loses.
- Buy the Sentinel if you want humidity sensing and an internal condensate evaporator, and the Classic if temperature control alone is enough and you can run a drain line.
- A 120 V outlet for the standard Type B plug
- The TTW02B Sentinel is rated at 56.7 dBA measured six feet from the unit, helped by sound reduction foam that the Classic does not carry.
Wine Guardian TTW02B Sentinel Through-The-Wall Wine Cellar Cooling Unit is backordered and will ship as soon as it is back in stock.
- Authorized Wine Guardian dealer
- 25 month parts warranty
- 30-day returns, unopened
Couldn't load pickup availability
Wine Guardian TTW02B Sentinel Through-The-Wall Wine Cellar Cooling Unit is backordered and will ship as soon as it is back in stock.
Wine Guardian TTW02B Sentinel: Through-the-Wall Cooling with Built-In Humidity Control
The Wine Guardian TTW02B Sentinel is a self-contained, through-the-wall wine cellar cooling unit that Wine Guardian publishes at 2,650 BTU/h at 75°F, and it adds a built-in humidity sensor, an internal condensate evaporator and sound reduction foam to the Classic platform.
The TTW02B Sentinel is the mid-tier trim of the redesigned Through-the-Wall (TTW) B series, sitting between the temperature-only Classic and the exterior-rated Defender. It is the trim to choose when the cellar sits on an interior wall and you want humidity sensing and condensate re-evaporation without paying for the Defender's exterior wall package, electric heater or ultra-quiet package.
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. Wine Guardian manufactures the unit and handles warranty, returns and service.
Wine Guardian names the TTW02B Sentinel as the replacement for the discontinued TTW018. If you are upgrading an older mid-sized cellar system, the TTW02B Sentinel is the direct successor, adding a built-in humidity sensor, an internal condensate evaporator and updated Bluetooth and NFC controls. A qualified professional can confirm fit for your existing opening and electrical supply.
Is the Wine Guardian TTW02B Sentinel Right for You
The Wine Guardian TTW02B Sentinel covers cellars up to about 1,200 cubic feet.
Wine Guardian sizes the Through-the-Wall B series by heat load rather than by a published cubic-foot rating, so this figure is calculated with Wine Guardian's own cooling calculator at a documented baseline: an 8-foot ceiling, no glass, R-13 walls and floor, R-29 ceiling, a 75°F warmest wall, 80°F air to the condenser and a 55°F cellar. Wine Guardian separately lists the TTW02B as the replacement for the TTW018, which it rates at 100 to 1,200 cubic feet. Cellars with a glass door, thin insulation or a warm adjacent room need a lower figure, so start from the full range of cooling units for cellars up to 1,200 cubic feet and confirm final sizing with a licensed HVAC professional.
✓ Ideal For
Homeowners, collectors and trade buyers with mid-sized wine rooms, wine walls or displays on an interior wall who want easy through-the-wall installation, temperature and humidity control together, and quieter running than the Classic, without ductwork or a contractor.
× Consider Another Model If
You need the unit to exhaust through an exterior-rated wall or you need supplemental heating (choose the TTW02B Defender), you need more capacity for a larger cellar (step up to the TTW04B Sentinel), or temperature control alone is enough and you can run a drain line (choose the TTW02B Classic).
Wine Guardian TTW02B Sentinel Key Features: Humidity Control and Condensate Handling
Humidity control is what the Sentinel trim adds over the Classic: a combined thermostat and humidistat plus an internal condensate evaporator that manages the water the coil pulls out of the air. The sensor reads humidity and can drive a connected humidifier, but it adds no moisture by itself, so whether the room needs one is a separate decision; when a cellar actually needs a humidifier and when it does not sets out the conditions that decide it.
| Feature | What it means for your cellar |
|---|---|
| Humidity Sensor | A combined thermostat and humidistat lets you connect a Wine Guardian freestanding humidifier for full climate control. The Classic trim does not have this sensor. |
| Condensate Evaporator | An internal re-evaporation system manages condensate inside the unit and often removes the need for a dedicated drain line. |
| Sound Reduction Foam | Internal acoustic foam brings the unit to 56.7 dB at 6 feet, quieter than the 58.0 dB Classic, so it stays in the background in a living space. |
| Eco-Friendly Refrigerant | A non-flammable, low global-warming-potential refrigerant that meets current US environmental standards. |
| Coated Evaporator Coil | A protective coating on the evaporator coil resists corrosion in the damp air a wine cellar is kept at. |
| Bluetooth and NFC Controls | Set and check temperature and humidity from a phone at the unit, without pulling the front grille or reaching behind a rack. |
| Assembled in the USA | Wine Guardian assembles the unit in the United States, and parts and service run through Wine Guardian's own channel. |
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 the Wine Guardian TTW02B 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.
How Quiet Is the Wine Guardian TTW02B Sentinel? Noise Level in dB
The Wine Guardian TTW02B Sentinel is rated at 56.7 dB measured six feet from the unit, which is quieter than the 58.0 dB TTW02B Classic and louder than the 54.0 dB TTW02B Defender. The scale below places that figure against everyday sounds, and published noise levels across wine cellar cooling models show how a through-the-wall unit compares with ducted and split alternatives.
TTW02B Sentinel Installation Requirements
The TTW02B 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 and exhausts condenser heat into the adjacent interior space. That adjacent space absorbs the heat the cellar gives up, so it needs to be ventilated rather than a sealed closet. A step-by-step walkthrough of a through-the-wall cooling unit installation covers how that opening is framed and sleeved and how the unit is sealed into it.
Wine Guardian TTW02B Sentinel Specifications
Wine Guardian publishes the TTW02B Sentinel at 2,650 BTU/h at 75°F, the same nominal capacity it publishes for the TTW02B Classic and the TTW02B Defender. The full table below is the manufacturer's own data for this model and this trim.
Compatible Add-Ons
Wall Sleeve and Hardware
Remote Interface Controller
Exhaust Duct Collar
Wine Cellar Humidifier
Browse all parts and accessories, or explore related ducted and ductless split systems.
How the Wine Guardian TTW02B Sentinel Compares: Sentinel vs Classic vs Defender
All three TTW02B trims are published at the same nominal 2,650 BTU/h at 75°F, so the decision is not about cooling power. It is about humidity, condensate, noise and which wall the unit can exhaust through.
| Decision factor | TTW02B Classic | TTW02B Sentinel | TTW02B Defender |
|---|---|---|---|
| Noise at 6 ft | 58.0 dB | 56.7 dB | 54.0 dB |
| Humidity sensor | Not included | Included | Included |
| Condensate handling | Drain line | Internal re-evaporator | Internal re-evaporator |
| Wall it can exhaust through | Interior only | Interior only | Interior or exterior-rated |
- Choose the TTW02B Sentinel if the cellar sits on an interior wall and you want humidity sensing plus condensate re-evaporation.
- Choose the TTW02B Classic instead if temperature control alone is enough and you can run a drain line.
- Choose the TTW02B Defender if the unit must exhaust through an exterior-rated wall or you need supplemental heating.
Browse the full range of Wine Guardian through-the-wall wine cellar cooling units or all wine cellar cooling units.
Wine Guardian TTW02B Sentinel Questions
Should I buy the Wine Guardian TTW02B Sentinel or the TTW02B Classic?
Buy the Sentinel if you want humidity sensing and an internal condensate evaporator, and the Classic if temperature control alone is enough and you can run a drain line. Both deliver the same 2,650 BTU/h at 75°F, and the Sentinel is the quieter of the two at 56.7 dBA against the Classic's 58.0 dBA.
Where does the Wine Guardian TTW02B Sentinel exhaust its heat?
The TTW02B Sentinel exhausts condenser heat out of its back and into whatever space sits on the other side of the wall, so that room absorbs the heat the cellar loses. It is rated for interior installation only, which means the receiving space needs to be ventilated and not a sealed closet. Confirm the exhaust location, clearances and ventilation with Wine Guardian's official documentation and a licensed HVAC professional or qualified contractor.
Is a through-the-wall unit enough to cool my wine closet or small cellar?
The Wine Guardian TTW02B Sentinel covers cellars up to about 1,200 cubic feet. Wine Guardian sizes the Through-the-Wall B series by heat load rather than by a published cubic-foot rating, so this figure is calculated with Wine Guardian's own cooling calculator at a documented baseline: an 8-foot ceiling, no glass, R-13 walls and floor, R-29 ceiling, a 75°F warmest wall, 80°F air to the condenser and a 55°F cellar. Wine Guardian separately lists the TTW02B as the replacement for the TTW018, which it rates at 100 to 1,200 cubic feet. A glass door, an uninsulated wall or a warm adjacent room lowers that number, so treat it as a starting point and confirm final sizing with a licensed HVAC professional.
What warranty comes with the Wine Guardian TTW02B Sentinel?
Wine Guardian’s Standard Warranty covers 25 months parts and 13 months labor from the date of original invoice. The optional Platinum Warranty covers 25 months parts and 25 months labor, and adds a 36-month parts-only extension on the compressor, evaporator coil and condenser coil, bringing those three parts to 61 months total. Warranty coverage is provided by Wine Guardian, not by this store, and the Standard Warranty and Platinum Warranty documents are linked in the Documents and Resources section of this page. Register the unit with Wine Guardian after installation and read the warranty document for the terms that apply to your unit.
Does the Wine Guardian TTW02B Sentinel control humidity?
Yes. The TTW02B Sentinel includes a built-in humidity sensor that combines a thermostat and a humidistat, which the Classic does not have. Paired with the optional Wine Guardian freestanding humidifier it helps hold roughly 55 to 65 percent relative humidity for long-term storage.
How quiet is the Wine Guardian TTW02B Sentinel?
The TTW02B Sentinel is rated at 56.7 dBA measured six feet from the unit, helped by sound reduction foam that the Classic does not carry. That sits just under a normal conversation at about 60 dB and above a quiet library at about 45 dB.
Does the Wine Guardian TTW02B Sentinel need a drain line?
Usually not. The TTW02B Sentinel carries an internal condensate evaporator that re-evaporates condensate, which often removes the need for a dedicated drain line. Confirm final drainage requirements with Wine Guardian's official documentation and a qualified contractor.
Which Wine Guardian model replaces the TTW018?
Wine Guardian names the TTW02B Sentinel as the replacement for the discontinued TTW018. The TTW02B Sentinel keeps the same through-the-wall, ductless format and adds a humidity sensor, an internal condensate evaporator, sound reduction foam and Bluetooth and NFC controls. A qualified professional can confirm that it fits your existing wall opening and electrical supply.
Need Help Confirming the Right Wine Guardian Model?
Not sure if the TTW02B Sentinel is sized correctly for your cellar? Our Wine Cellar Specialists can confirm the right capacity and configuration for your space.
Why this model
TTW02B Sentinel Through-The-Wall key features
-
2,650 BTU/h of cooling
Rated at 75°F condenser air; 2,040 BTU/h at 90°F.
-
Humidity sensor built in
Reads temperature and humidity and connects a Wine Guardian freestanding humidifier.
-
No drain line as shipped
Condensate is re-evaporated inside the unit; the drain tube comes plugged.
-
Fits between standard wall studs
Opening up to 14½ x 16¼ in, stud to stud, in an interior wall.
-
Heat goes behind the wall
The condenser end exhausts into the next room; a duct collar kit is optional.
-
Bluetooth and NFC
Set and read the cellar from a phone with the Carel Controlla app.
Not sure the Wine Guardian TTW02B Sentinel Through-The-Wall Wine Cellar Cooling Unit is the right size? Enter your room size, insulation and glass to see your cellar's cooling load in BTU/h.
Open the Wine Guardian cooling calculatorSee it in action
See the TTW02B Sentinel Through-The-Wall in action
Wine Guardian TTW Features and Benefits
Wine Guardian Through-the-Wall Installation Guide
Wine Guardian Through-the-Wall Installation, previous generation
Parts for a working install are ordered separately.
See the complete systemComplete system
Complete the TTW02B Sentinel Through-The-Wall system
Sold separately. Tick what you need — it goes into the cart with the unit.
- 2,650 BTU/h at 75°F
- 120 V plug-in
- 64 lb
SKU: WGTTW02B00LCS2A0BHF
After you buy
Warranty, returns and help
Wine Guardian warranty: 25 months parts
Warranty service is handled directly by Wine Guardian. We help you find your model, serial number and purchase documents. Standard: 25 months parts and 13 months labor from the original invoice date. Platinum (optional upgrade): 25 months parts and labor, plus the compressor, evaporator coil and condenser coil covered for 61 months (parts only).
Ask us for a free copy of the warranty before you buy.
Free cancellation for 24 hours
Cancel free within 24 hours of placing your order, custom and made-to-order items included: your card is not charged. After 24 hours and before the order ships, a standard order can still be cancelled for 3%, the card-processing fee the payment processor keeps on a refunded payment. Custom and made-to-order items go into production after 24 hours and cannot be cancelled.
30-day returns, unopened
Return an unopened, uninstalled item within 30 days of delivery for a refund or store credit. Contact us first: ship nothing back until we send you an RMA number with the return instructions. A 25% restocking fee applies to returns and exchanges; there is no fee when an item arrives damaged, is defective or the wrong item was sent.
Questions? 1 (800) 260-1712Monday to Friday, 9AM to 9PM EST
Frequently asked questions
TTW02B Sentinel Through-The-Wall questions
Should I buy the Wine Guardian TTW02B Sentinel or the TTW02B Classic?
Buy the Sentinel if you want humidity sensing and an internal condensate evaporator, and the Classic if temperature control alone is enough and you can run a drain line. Both deliver the same 2,650 BTU/h at 75°F, and the Sentinel is the quieter of the two at 56.7 dBA against the Classic's 58.0 dBA.
Where does the Wine Guardian TTW02B Sentinel exhaust its heat?
The TTW02B Sentinel exhausts condenser heat out of its back and into whatever space sits on the other side of the wall, so that room absorbs the heat the cellar loses. It is rated for interior installation only, which means the receiving space needs to be ventilated and not a sealed closet. Confirm the exhaust location, clearances and ventilation with Wine Guardian's official documentation and a licensed HVAC professional or qualified contractor.
Is a through-the-wall unit enough to cool my wine closet or small cellar?
The Wine Guardian TTW02B Sentinel covers cellars up to about 1,200 cubic feet. Wine Guardian sizes the Through-the-Wall B series by heat load rather than by a published cubic-foot rating, so this figure is calculated with Wine Guardian's own cooling calculator at a documented baseline: an 8-foot ceiling, no glass, R-13 walls and floor, R-29 ceiling, a 75°F warmest wall, 80°F air to the condenser and a 55°F cellar. Wine Guardian separately lists the TTW02B as the replacement for the TTW018, which it rates at 100 to 1,200 cubic feet. A glass door, an uninsulated wall or a warm adjacent room lowers that number, so treat it as a starting point and confirm final sizing with a licensed HVAC professional.
What warranty comes with the Wine Guardian TTW02B Sentinel?
Wine Guardian’s Standard Warranty covers 25 months parts and 13 months labor from the date of original invoice. The optional Platinum Warranty covers 25 months parts and 25 months labor, and adds a 36-month parts-only extension on the compressor, evaporator coil and condenser coil, bringing those three parts to 61 months total. Warranty coverage is provided by Wine Guardian, not by this store, and the Standard Warranty and Platinum Warranty documents are linked in the Documents and Resources section of this page. Register the unit with Wine Guardian after installation and read the warranty document for the terms that apply to your unit.
Does the Wine Guardian TTW02B Sentinel control humidity?
Yes. The TTW02B Sentinel includes a built-in humidity sensor that combines a thermostat and a humidistat, which the Classic does not have. Paired with the optional Wine Guardian freestanding humidifier it helps hold roughly 55 to 65 percent relative humidity for long-term storage.
How quiet is the Wine Guardian TTW02B Sentinel?
The TTW02B Sentinel is rated at 56.7 dBA measured six feet from the unit, helped by sound reduction foam that the Classic does not carry. That sits just under a normal conversation at about 60 dB and above a quiet library at about 45 dB.
Does the Wine Guardian TTW02B Sentinel need a drain line?
Usually not. The TTW02B Sentinel carries an internal condensate evaporator that re-evaporates condensate, which often removes the need for a dedicated drain line. Confirm final drainage requirements with Wine Guardian's official documentation and a qualified contractor.
Which Wine Guardian model replaces the TTW018?
Wine Guardian names the TTW02B Sentinel as the replacement for the discontinued TTW018. The TTW02B Sentinel keeps the same through-the-wall, ductless format and adds a humidity sensor, an internal condensate evaporator, sound reduction foam and Bluetooth and NFC controls. A qualified professional can confirm that it fits your existing wall opening and electrical supply.
Find the Right System for Your Cellar
Compare the range or talk to us about sizing. Final sizing, electrical and installation should be confirmed with the manufacturer's documentation and a licensed HVAC professional.
