Wine Guardian TTW01B Defender Through-The-Wall Wine Cellar Cooling Unit
Exterior-rated through-the-wall unit for small wine rooms and displays: 1,440 BTU/h at 75°F, 120 V plug-in, electric heater built in
- All three TTW01B trims share the same 1,440 BTU/h nominal capacity at 75°F.
- Wine Guardian tags three features to the Defender series specifically: the Ultra Quiet Package, the Exterior Wall Package rated 0°F to 125°F ambient, and an Electric Heater.
- The Defender trim includes Wine Guardian's Exterior Wall Package, an exterior-rated grille and coated condenser coil that Wine Guardian states allows installation through an exterior wall and operation in ambient temperatures from 0°F to 125°F.
- A 120 V outlet for the standard Type B plug
- Wine Guardian publishes 47.9 dBA at 6 feet for the TTW01B Defender, the lowest published figure across the Through-the-Wall B series and the basis for Wine Guardian's own claim that Defender units run as quiet as 48 dBA.
Wine Guardian TTW01B 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
Couldn't load pickup availability
Wine Guardian TTW01B Defender Through-The-Wall Wine Cellar Cooling Unit is backordered and will ship as soon as it is back in stock.
TTW01B Defender Through-the-Wall Wine Cooling Unit for Exterior Walls and Cold Rooms
The Wine Guardian TTW01B Defender through-the-wall wine cooling unit is the top trim of Wine Guardian's Through-the-Wall B series, rated by Wine Guardian at a nominal 1,440 BTU/h at 75°F for small wine cellars, wine walls and display cabinets.
Defender is the trim to specify when the cellar wall faces outdoors or the surrounding room swings hot and cold. On top of the Sentinel feature set it adds three things Wine Guardian tags to the Defender series alone: the Exterior Wall Package, with an exterior-rated grille and coated condenser coil rated for ambient temperatures from 0°F to 125°F; an Electric Heater that warms cellar air when the room falls below your set point; and the Ultra Quiet Package, which brings the published sound level to 47.9 dBA at 6 feet, the lowest figure Wine Guardian publishes anywhere in the Through-the-Wall B series.
Wine Guardian Dealer is an authorized Wine Guardian dealer. Wine Guardian manufactures, warrants and services the equipment; our wine cellar specialists help you confirm the right capacity, trim and installation configuration before you order.
See the TTW01B Defender in Action
Watch How It Works
See how the Wine Guardian Through-the-Wall platform mounts, breathes and holds cellar conditions, and where the Defender trim differs from the rest of the line.
- Through-the-wall mounting between studs, no ductwork
- Exterior Wall Package, Electric Heater and integrated humidistat
- 47.9 dBA at 6 feet, the lowest published figure in the B series
Questions about fit? Call our specialists at (800) 260-1712.
Wine Guardian names the TTW01B as the replacement for the discontinued Wine Guardian TTW009. If you are servicing or upgrading an older small-cellar system, the TTW01B Defender is the current-generation successor with updated controls, an eco-friendly refrigerant and the full Defender feature set. A qualified contractor can confirm fit against your existing opening and electrical supply.
Is the TTW01B Defender Through-the-Wall Wine Cooling Unit Right for You
The TTW01B Defender covers cellars up to about 600 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 TTW01B as the replacement for the TTW009, which it rates at 50 to 600 cubic feet.
Within that band, the Defender trim earns its price when the installation is hard rather than when the cellar is large: an exterior wall, an unconditioned garage, an attic run, or a living space where a cooling unit at 51.9 dBA would be heard. If your wall is interior and the surrounding room stays conditioned, the Sentinel trim holds the same 1,440 BTU/h with the same humidistat for less. Compare the whole configuration first among Wine Guardian's through-the-wall wine cellar cooling units, then sanity-check the capacity against the other cooling units for cellars up to 1,200 cubic feet.
✓ Ideal For
Small wine rooms, wine walls and display cabinets where the cooling unit must exhaust through an exterior wall, a garage or an attic; cellars in cold climates that need heat as well as cooling; and rooms next to living or tasting space where noise is the deciding factor. Where that adjacent space is a garage, how wine storage in a garage is built and cooled covers the ambient swings and insulation work that siting brings with it.
× Consider Another Model If
Your wall is interior and the surrounding room stays conditioned, in which case the TTW01B Sentinel carries the same capacity and humidistat; you only need temperature control, in which case the TTW01B Classic is the value option; or your cellar exceeds this capacity, in which case step up to the TTW02B Defender.
TTW01B Defender Key Features
The TTW01B Defender carries the full Through-the-Wall B series feature set plus the three packages Wine Guardian tags to the Defender series alone.
| Feature | What it means for your cellar |
|---|---|
| Ultra Quiet Package (Defender series) | Additional sound reduction material. Wine Guardian publishes 47.9 dBA at 6 feet for this model, the lowest figure in the Through-the-Wall B series, so the unit stays unobtrusive beside living and tasting space. |
| Exterior Wall Package (Defender series) | An exterior-rated grille and coated condenser coil that Wine Guardian rates for ambient temperatures from 0°F to 125°F, so the unit can be installed through an exterior wall or exhaust into a garage or attic. |
| Electric Heater (Defender series) | A heating coil that warms cellar air when the room drops below your set point. Wine Guardian's product page states it engages 2°F to 6°F below set point. |
| Integrated humidistat | A combined thermostat and humidistat that lets a Wine Guardian freestanding humidifier be connected to hold a constant relative humidity of 55 to 65 percent. |
| Condensate re-evaporation | A re-evaporation system that manages condensate without a dedicated drain line connection. |
| Cellar temperature control | Wine Guardian states the Through-the-Wall platform consistently achieves cellar temperatures from 42°F to 75°F, covering long-term storage and serving temperatures alike. |
| Coated evaporator coil and eco refrigerant | A coated evaporator coil for cellar humidity, and a non-flammable, low global warming potential refrigerant. |
| Bluetooth and NFC controls | Set point, humidity and diagnostics are reachable from a phone rather than only at the unit. |
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.
How Quiet Is the TTW01B Defender
Wine Guardian publishes 47.9 dBA at 6 feet for the TTW01B Defender, the lowest published sound level in the Through-the-Wall B series and the figure behind Wine Guardian's own "as quiet as 48 dBA" claim for the Defender series. The scale below places that figure against everyday sounds and against the other two TTW01B trims.
TTW01B Defender Installation Requirements
The TTW01B Defender mounts through a wall between standard studs, supported by the included bracket or an optional wall sleeve, and needs no ductwork. With the Exterior Wall Package it can be installed through an exterior wall or exhaust into a garage or attic within its rated ambient range. The wall work is the same either way, and a step-by-step walkthrough of a through-the-wall cooling unit installation covers framing, sleeving and sealing the opening.
TTW01B Defender Through-the-Wall Wine Cellar Cooling Unit Specifications
Every figure below is Wine Guardian's own published data for the TTW01B Defender.
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 TTW01B Defender Compares to the Sentinel, Classic and Wine Guardian TTW009
All three TTW01B trims share the same 1,440 BTU/h nominal capacity at 75°F. What separates them is climate control, published noise and whether the unit is built for an exterior wall.
| Decision factor | TTW01B Classic | TTW01B Sentinel | TTW01B Defender |
|---|---|---|---|
| Cellar climate control | Temperature control | Temperature and humidity control | Temperature and humidity control |
| Published noise at 6 ft | 51.9 dBA | 49.5 dBA | 47.9 dBA |
| Exterior-wall installation | Standard chassis | Standard chassis | Exterior Wall Package, 0°F to 125°F ambient |
| Cellar heating | Cooling only | Cooling only | Electric Heater included |
- Choose the TTW01B Defender if the cooling unit must go through an exterior wall, exhaust into a garage or attic, add heat in a cold room, or run as quietly as the line allows.
- Choose the TTW01B Sentinel for an interior wall in a conditioned room: it gives you the same capacity and humidity control for less.
- Choose the TTW01B Classic for a temperature-only cellar: it is the value choice.
Browse the full Through-the-Wall range or all wine cellar cooling units.
TTW01B Defender Questions
Can the Wine Guardian TTW01B Defender be installed through an exterior wall or vented into a garage?
Yes. The Defender trim includes Wine Guardian's Exterior Wall Package, an exterior-rated grille and coated condenser coil that Wine Guardian states allows installation through an exterior wall and operation in ambient temperatures from 0°F to 125°F. Confirm the opening, weather sealing and clearances with a licensed HVAC professional or qualified contractor before you cut the wall.
Does the TTW01B Defender need an electric heater in a cold basement or garage?
The TTW01B Defender ships with an Electric Heater as part of the Defender trim, and Wine Guardian advises heating when the rooms surrounding the cellar drop below 50°F for extended periods. Wine Guardian's product page states the heating coil engages 2°F to 6°F below your set point.
Will the TTW01B Defender keep my cellar from getting too dry in winter?
The TTW01B Defender carries an integrated humidistat, but it does not add moisture on its own. Wine Guardian states that an optional freestanding humidifier can be connected to hold a constant relative humidity of 55 to 65 percent, which is the usual answer for a cellar that dries out in heating season.
What warranty comes with the Wine Guardian TTW01B Defender and who handles a claim?
Wine Guardian's standard warranty runs 25 months on parts and 13 months on labor. The optional Platinum warranty runs 25 months on parts and 25 months on labor plus a 36-month parts-only extension on the compressor, evaporator coil and condenser coil, for 61 months total. Warranty, returns and service run through Wine Guardian, so register the unit with Wine Guardian after installation.
How quiet is the Wine Guardian TTW01B Defender?
Wine Guardian publishes 47.9 dBA at 6 feet for the TTW01B Defender, the lowest published figure across the Through-the-Wall B series and the basis for Wine Guardian's own claim that Defender units run as quiet as 48 dBA. The Defender trim adds the Ultra Quiet Package on top of the internal sound attenuation material Wine Guardian lists for the Sentinel and Defender series.
How do I install the Wine Guardian TTW01B Defender?
The TTW01B Defender is a self-contained unit that mounts through a wall between standard studs, supported by the included bracket or an optional wall sleeve, with no ductwork required. Final placement, electrical supply, drainage and ventilation should be confirmed with Wine Guardian's official documentation and a licensed HVAC professional or qualified contractor.
How do I size a wine cellar cooling unit for my space?
Sizing follows the cellar's heat load, which depends on insulation, glass area, ambient temperature, door seals and ceiling height, not floor area alone. Wine Guardian publishes a nominal 1,440 BTU/h at 75°F for the TTW01B Defender; confirm the final capacity with Wine Guardian's cooling calculator and a licensed HVAC professional before you buy.
What makes the TTW01B Defender different from the Sentinel and Classic?
Defender is the top trim of the TTW01B. Wine Guardian tags three features to the Defender series specifically: the Ultra Quiet Package, the Exterior Wall Package rated 0°F to 125°F ambient, and an Electric Heater. Wine Guardian lists the integrated humidistat and the condensate re-evaporation system for both the Sentinel and Defender series.
When should I replace a Wine Guardian TTW009?
Common triggers are an inability to hold set point, rising noise or vibration, short cycling, or repeat repairs on an ageing unit. Wine Guardian names the TTW01B as the replacement for the discontinued TTW009, and a qualified contractor can confirm that the existing wall opening and electrical supply suit the Defender chassis.
Need Help Confirming the Right Wine Guardian Model?
Not sure whether the TTW01B Defender is sized and configured correctly for your cellar? Our wine cellar specialists can confirm the capacity, trim and installation configuration for your space.
Why this model
TTW01B Defender Through-The-Wall key features
-
1,440 BTU/h of cooling
Rated at 75°F condenser air; 1,070 BTU/h at 90°F.
-
Rated for an exterior wall
Exterior grille and coated condenser coil, for 0°F to 125°F ambient.
-
300 W electric heater
Warms cellar air when the temperature drops below the set point.
-
47.9 dBA at 6 ft
Sound attenuation grilles come standard; the quietest TTW01B trim.
-
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 TTW01B 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 TTW01B 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.
See the complete systemComplete system
Complete the TTW01B Defender Through-The-Wall system
Sold separately. Tick what you need — it goes into the cart with the unit.
- 1,440 BTU/h at 75°F
- 120 V plug-in
- 65 lb
SKU: WGTTW01BE1LCD2A0BHF
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
TTW01B Defender Through-The-Wall questions
Can the Wine Guardian TTW01B Defender be installed through an exterior wall or vented into a garage?
Yes. The Defender trim includes Wine Guardian's Exterior Wall Package, an exterior-rated grille and coated condenser coil that Wine Guardian states allows installation through an exterior wall and operation in ambient temperatures from 0°F to 125°F. Confirm the opening, weather sealing and clearances with a licensed HVAC professional or qualified contractor before you cut the wall.
Does the TTW01B Defender need an electric heater in a cold basement or garage?
The TTW01B Defender ships with an Electric Heater as part of the Defender trim, and Wine Guardian advises heating when the rooms surrounding the cellar drop below 50°F for extended periods. Wine Guardian's product page states the heating coil engages 2°F to 6°F below your set point.
Will the TTW01B Defender keep my cellar from getting too dry in winter?
The TTW01B Defender carries an integrated humidistat, but it does not add moisture on its own. Wine Guardian states that an optional freestanding humidifier can be connected to hold a constant relative humidity of 55 to 65 percent, which is the usual answer for a cellar that dries out in heating season.
What warranty comes with the Wine Guardian TTW01B Defender and who handles a claim?
Wine Guardian's standard warranty runs 25 months on parts and 13 months on labor. The optional Platinum warranty runs 25 months on parts and 25 months on labor plus a 36-month parts-only extension on the compressor, evaporator coil and condenser coil, for 61 months total. Warranty, returns and service run through Wine Guardian, so register the unit with Wine Guardian after installation.
How quiet is the Wine Guardian TTW01B Defender?
Wine Guardian publishes 47.9 dBA at 6 feet for the TTW01B Defender, the lowest published figure across the Through-the-Wall B series and the basis for Wine Guardian's own claim that Defender units run as quiet as 48 dBA. The Defender trim adds the Ultra Quiet Package on top of the internal sound attenuation material Wine Guardian lists for the Sentinel and Defender series.
How do I install the Wine Guardian TTW01B Defender?
The TTW01B Defender is a self-contained unit that mounts through a wall between standard studs, supported by the included bracket or an optional wall sleeve, with no ductwork required. Final placement, electrical supply, drainage and ventilation should be confirmed with Wine Guardian's official documentation and a licensed HVAC professional or qualified contractor.
How do I size a wine cellar cooling unit for my space?
Sizing follows the cellar's heat load, which depends on insulation, glass area, ambient temperature, door seals and ceiling height, not floor area alone. Wine Guardian publishes a nominal 1,440 BTU/h at 75°F for the TTW01B Defender; confirm the final capacity with Wine Guardian's cooling calculator and a licensed HVAC professional before you buy.
What makes the TTW01B Defender different from the Sentinel and Classic?
Defender is the top trim of the TTW01B. Wine Guardian tags three features to the Defender series specifically: the Ultra Quiet Package, the Exterior Wall Package rated 0°F to 125°F ambient, and an Electric Heater. Wine Guardian lists the integrated humidistat and the condensate re-evaporation system for both the Sentinel and Defender series.
When should I replace a Wine Guardian TTW009?
Common triggers are an inability to hold set point, rising noise or vibration, short cycling, or repeat repairs on an ageing unit. Wine Guardian names the TTW01B as the replacement for the discontinued TTW009, and a qualified contractor can confirm that the existing wall opening and electrical supply suit the Defender chassis.
Show all (9)Show less
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.
