Wine Guardian TTW02B Defender Through-The-Wall Wine Cellar Cooling Unit
Exterior-rated through-the-wall unit for small to mid-sized wine rooms: 2,650 BTU/h at 75°F, 120 V plug-in, electric heater built in
- All three TTW02B trims are published at the same nominal 2,650 BTU/h at 75°F, so capacity is not what separates them.
- The Defender trim includes an electric heater that the Classic and Sentinel do not, so it can warm cellar air when the room falls below its set point rather than only cooling it.
- A 120 V outlet for the standard Type B plug
- Wine Guardian publishes 54.0 dBA for the TTW02B Defender, against 56.7 dBA for the TTW02B Sentinel and 58.0 dBA for the TTW02B Classic.
Wine Guardian TTW02B Defender 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
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Wine Guardian TTW02B Defender Through-The-Wall Wine Cellar Cooling Unit is backordered and will ship as soon as it is back in stock.
Wine Guardian TTW02B Defender: Exterior-Rated Through-the-Wall Cooling with a Heater
The Wine Guardian TTW02B Defender is a self-contained, ductless through-the-wall wine cellar cooling unit that Wine Guardian publishes at 2,650 BTU/h at 75°F. It is the top trim of the TTW02B platform: it carries everything the Sentinel carries, including the humidity sensor, the condensate evaporator and the sound reduction foam, and adds three things only the Defender gets, which are the Exterior Wall Package, an electric heater and the Ultra Quiet Package that brings it to 54.0 dBA.
Those three additions decide who this trim is for. The Exterior Wall Package lets the warm side of the unit sit in a garage, an attic or another unconditioned space instead of a conditioned room, the electric heater lets it warm a cellar that drops below its set point in winter, and the Ultra Quiet Package makes it the quietest of the three TTW02B trims. All three trims cool the same amount, so capacity is not the reason to move up. Compare the alternatives across the full range of through-the-wall wine cellar cooling units.
As an authorized Wine Guardian dealer, Wine Guardian Dealer supplies the complete Through-the-Wall line with expert selection support, so you can confirm capacity, wall depth and configuration before you order. Warranty, returns and service are handled through Wine Guardian.
Wine Guardian names the TTW02B as the replacement for the discontinued TTW018. If you are servicing or upgrading a TTW018 installation, the TTW02B Defender is the exterior-rated, heated and ultra-quiet trim of that successor platform, with updated controls and a non-flammable, low global warming potential refrigerant. A qualified professional should confirm fit against your existing wall opening and electrical supply.
Is the TTW02B Defender Right for You
The TTW02B Defender 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.
Within that band, the Defender is the trim to choose for an installation the Classic and Sentinel are not rated for. Its Exterior Wall Package is what makes an exhaust into a garage, an attic or another unconditioned space a rated installation rather than an improvised one, and its electric heater is what covers a room that gets genuinely cold in winter. Where that space is a garage, how wine storage in a garage is built and cooled covers the ambient swings and the insulation work that siting brings with it.
✓ Ideal For
Cellars and wine rooms where the unit must exhaust into a garage, attic, crawlspace or other unconditioned space, where winter temperatures drop the room below its set point, or where the unit sits close enough to living space that 54.0 dBA is worth paying for. Also the right pick for the collector who wants humidity sensing and the full Defender feature set in one unit.
× Consider Another Model If
Your unit exhausts into a conditioned interior space and the room never gets cold, in which case the TTW02B Sentinel gives you the same 2,650 BTU/h and the same humidity sensor for less. Choose the TTW02B Classic if you need temperature control only, and step to the TTW01B or TTW04B Defender if the cellar volume is smaller or larger than this band. Note also that the Defender needs the deepest wall of the three trims.
TTW02B Defender Key Features
The TTW02B Defender combines the full Sentinel feature set with the three additions Wine Guardian reserves for the Defender trim.
| Feature | What it means for your cellar |
|---|---|
| Exterior Wall Package (Defender only) | An exterior grille and coated condenser coil rated for ambient conditions from 0°F to 125°F, so the warm side can discharge into a garage, attic or other unconditioned space as a rated installation. |
| Electric Heater (Defender only) | Warms cellar air when the room falls below the set point, which matters in a garage, an outbuilding or any space that gets cold in winter. The Classic and Sentinel cool only. |
| Ultra Quiet Package (Defender only) | Added grille and cabinet dampening on top of the sound reduction foam, bringing the unit to 54.0 dBA against 56.7 dBA for the Sentinel and 58.0 dBA for the Classic. |
| Humidity Sensor | A combined thermostat and humidistat that lets a Wine Guardian humidifier connect to the system to help hold roughly 55 to 65 percent relative humidity. |
| Condensate Evaporator | Re-evaporates condensate internally, so a dedicated drain line is typically not required. |
| Precise Temperature Control | Holds cellar conditions from 42°F to 75°F while limiting the swings that age wine badly. |
| Bluetooth and NFC Controls | Set points and status are reachable from a phone at the unit, without a wired panel run. |
| Eco-Friendly Refrigerant | A non-flammable refrigerant with low global warming potential, assembled in the USA. |
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 TTW02B Defender in Action
Watch How It Works
See how the Wine Guardian Through-the-Wall platform is built and how its self-contained design protects a collection.
- Through-the-wall installation with no ductwork
- Exterior-rated warm side, plus an electric heater
- The quietest of the three TTW02B trims
Questions about fit? Call our specialists at (800) 260-1712.
How Quiet Is the TTW02B Defender
Wine Guardian publishes 54.0 dBA for the TTW02B Defender, the lowest figure of the three TTW02B trims, against 56.7 dBA for the Sentinel and 58.0 dBA for the Classic. The chart below places that figure at six feet against everyday sounds.
Installation Requirements for the TTW02B Defender
Wine Guardian lists the TTW02B Defender at a do-it-yourself installation level, mounted through a wall between standard studs on a wall sleeve or the included bracket. The one figure to check first is depth: the Defender chassis is 33.8 inches long against 27.6 inches for the TTW02B Sentinel, because the Exterior Wall Package and heater add length, and that is the most common reason a Defender will not drop into an opening sized for another trim. A step-by-step walkthrough of a through-the-wall cooling unit installation covers how the opening is framed and sleeved, which is where a depth mismatch usually shows up.
TTW02B Defender Specifications
Every figure below is Wine Guardian's own published data for the TTW02B Defender specifically, not for the Classic or Sentinel trim.
Compatible Add-Ons
Wall Sleeve and Hardware
Remote Interface Controller
Exhaust Duct Collar
Wine Cellar Humidifier
The humidifier is listed here because the Defender carries a humidity sensor to control it. Also available: Duct Collar Kit (94H0010-00). Browse all parts and accessories, or explore related ducted and ductless split systems.
How the TTW02B Defender Compares
All three TTW02B trims are published at the same nominal 2,650 BTU/h at 75°F, so capacity is not what separates them. These four factors are.
| Decision factor | TTW02B Classic | TTW02B Sentinel | TTW02B Defender |
|---|---|---|---|
| Humidity control | Temperature only | Humidity sensor | Humidity sensor |
| Rated for an unconditioned warm side | No | No | Yes, 0°F to 125°F ambient with the Exterior Wall Package |
| Heating for a cold room | None | None | Electric heater included |
| Noise at 6 ft | 58.0 dBA | 56.7 dBA | 54.0 dBA |
- Choose the TTW02B Defender if the warm side discharges into a garage, attic or other unconditioned space, the cellar drops below its set point in winter, or the install is close enough to living space that 54.0 dBA earns its premium.
- Choose the TTW02B Sentinel for an interior wall in a conditioned room that never gets cold: it gives you identical capacity and the same humidity sensor for less.
- Choose the TTW02B Classic for a temperature-only build.
The Defender also asks for the deepest wall of the three, at 33.8 inches against the Sentinel's 27.6 inches.
If you are still narrowing the configuration, compare the whole range of through-the-wall wine cellar cooling units, or work from room size instead and browse cooling units for cellars up to 1,200 cubic feet, which covers ducted, ductless and cabinet configurations in the same band. You can also see every model in the Wine Guardian cooling range.
TTW02B Defender Questions
Can the Wine Guardian TTW02B Defender exhaust into a garage or another unconditioned space?
The TTW02B Defender is the only TTW02B trim with the Exterior Wall Package, which pairs an exterior grille and a coated condenser coil rated for ambient conditions from 0°F to 125°F, so the warm side can sit in a garage, an attic or another unconditioned space. Confirm the final wall assembly, clearances and drainage with a licensed HVAC professional.
Will the Wine Guardian TTW02B Defender hold temperature in a room that gets cold in winter?
The Defender trim includes an electric heater that the Classic and Sentinel do not, so it can warm cellar air when the room falls below its set point rather than only cooling it. A licensed HVAC professional should confirm the heater suits how cold your space actually gets.
How quiet is the Wine Guardian TTW02B Defender?
Wine Guardian publishes 54.0 dBA for the TTW02B Defender, against 56.7 dBA for the TTW02B Sentinel and 58.0 dBA for the TTW02B Classic. The Defender reaches that figure with the Ultra Quiet Package on top of the sound reduction foam the Sentinel already carries.
How deep a wall does the Wine Guardian TTW02B Defender need?
The TTW02B Defender chassis measures 33.8 by 14.1 by 15.75 inches, which is longer than the TTW02B Sentinel at 27.6 inches because the Exterior Wall Package and heater add depth. Check that dimension against your wall assembly before ordering, since it is the most common reason a Defender will not fit an opening sized for another trim.
Is the Wine Guardian TTW02B Defender worth the extra cost over the TTW02B Sentinel?
Only if you need what the Defender adds, because all three TTW02B trims deliver the same 2,650 BTU/h at 75°F and the Sentinel already includes the humidity sensor. Choose the Defender for an exterior-rated or unconditioned warm side, for the electric heater, or for the lower 54.0 dBA; otherwise the Sentinel covers the same job.
What size wine cellar does the Wine Guardian TTW02B Defender cool?
The TTW02B Defender 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. Confirm final sizing with a licensed HVAC professional.
Does the Wine Guardian TTW02B Defender replace the TTW018?
Wine Guardian names the TTW02B as the replacement for the discontinued TTW018, which it rates at 981 to 1,950 BTU and 100 to 1,200 cubic feet. The Defender is the exterior-rated, heated and ultra-quiet trim of that successor platform, and a qualified professional should confirm fit against the existing wall opening and electrical supply.
Need Help Confirming the Right Wine Guardian Model?
Not sure whether the exterior rating and heater are worth it for your build, or whether the TTW02B Defender fits your wall? Our Wine Cellar Specialists can confirm capacity, depth and configuration 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.
Why this model
TTW02B Defender Through-The-Wall key features
-
2,650 BTU/h of cooling
Rated at 75°F condenser air; 2,040 BTU/h at 90°F.
-
Rated for an exterior wall
Exterior grille and coated condenser coil, for 0°F to 125°F ambient.
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500 W electric heater
Warms cellar air when the temperature drops below the set point.
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54.0 dBA at 6 ft
Sound attenuation grilles come standard; the quietest TTW02B trim.
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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.
Not sure the Wine Guardian TTW02B Defender 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 Defender 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.
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Complete the TTW02B Defender 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
- 65 lb
SKU: WGTTW02BE1LCD2A0BHF
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 Defender Through-The-Wall questions
Can the Wine Guardian TTW02B Defender exhaust into a garage or another unconditioned space?
The TTW02B Defender is the only TTW02B trim with the Exterior Wall Package, which pairs an exterior grille and a coated condenser coil rated for ambient conditions from 0°F to 125°F, so the warm side can sit in a garage, an attic or another unconditioned space. Confirm the final wall assembly, clearances and drainage with a licensed HVAC professional.
Will the Wine Guardian TTW02B Defender hold temperature in a room that gets cold in winter?
The Defender trim includes an electric heater that the Classic and Sentinel do not, so it can warm cellar air when the room falls below its set point rather than only cooling it. A licensed HVAC professional should confirm the heater suits how cold your space actually gets.
How quiet is the Wine Guardian TTW02B Defender?
Wine Guardian publishes 54.0 dBA for the TTW02B Defender, against 56.7 dBA for the TTW02B Sentinel and 58.0 dBA for the TTW02B Classic. The Defender reaches that figure with the Ultra Quiet Package on top of the sound reduction foam the Sentinel already carries.
How deep a wall does the Wine Guardian TTW02B Defender need?
The TTW02B Defender chassis measures 33.8 by 14.1 by 15.75 inches, which is longer than the TTW02B Sentinel at 27.6 inches because the Exterior Wall Package and heater add depth. Check that dimension against your wall assembly before ordering, since it is the most common reason a Defender will not fit an opening sized for another trim.
Is the Wine Guardian TTW02B Defender worth the extra cost over the TTW02B Sentinel?
Only if you need what the Defender adds, because all three TTW02B trims deliver the same 2,650 BTU/h at 75°F and the Sentinel already includes the humidity sensor. Choose the Defender for an exterior-rated or unconditioned warm side, for the electric heater, or for the lower 54.0 dBA; otherwise the Sentinel covers the same job.
What size wine cellar does the Wine Guardian TTW02B Defender cool?
The TTW02B Defender 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. Confirm final sizing with a licensed HVAC professional.
Does the Wine Guardian TTW02B Defender replace the TTW018?
Wine Guardian names the TTW02B as the replacement for the discontinued TTW018, which it rates at 981 to 1,950 BTU and 100 to 1,200 cubic feet. The Defender is the exterior-rated, heated and ultra-quiet trim of that successor platform, and a qualified professional should confirm fit against the 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.
