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Wine Guardian TTW02B Defender Through-The-Wall Wine Cellar Cooling ...
THINKING ABOUT THE PERFECT WINE CELLAR? Save time and money: get expert advice before you buy
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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.
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.
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.
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.
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 how the Wine Guardian Through-the-Wall platform is built and how its self-contained design protects a collection.
Questions about fit? Call our specialists at (800) 260-1712.
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.
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.
Wine Guardian’s Standard Warranty runs 25 months parts and 13 months labor from the date of original invoice. The optional Platinum Warranty runs 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, returns and service are handled by Wine Guardian, not by this store. Register the unit with Wine Guardian after installation and read the warranty documents above for the terms that apply to your unit.
Every figure below is Wine Guardian's own published data for the TTW02B Defender specifically, not for the Classic or Sentinel trim.
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.
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 |
Best for: a warm side that discharges into a garage, attic or other unconditioned space, a cellar that drops below its set point in winter, or an install close enough to living space that 54.0 dBA earns its premium. Not ideal for: an interior wall in a conditioned room that never gets cold, where the TTW02B Sentinel gives you identical capacity and the same humidity sensor for less, or a temperature-only build, where the TTW02B Classic does. 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.
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.
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.
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.
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.
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.
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.
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.
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.
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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.
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.
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.
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.
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 how the Wine Guardian Through-the-Wall platform is built and how its self-contained design protects a collection.
Questions about fit? Call our specialists at (800) 260-1712.
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.
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.
Wine Guardian’s Standard Warranty runs 25 months parts and 13 months labor from the date of original invoice. The optional Platinum Warranty runs 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, returns and service are handled by Wine Guardian, not by this store. Register the unit with Wine Guardian after installation and read the warranty documents above for the terms that apply to your unit.
Every figure below is Wine Guardian's own published data for the TTW02B Defender specifically, not for the Classic or Sentinel trim.
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.
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 |
Best for: a warm side that discharges into a garage, attic or other unconditioned space, a cellar that drops below its set point in winter, or an install close enough to living space that 54.0 dBA earns its premium. Not ideal for: an interior wall in a conditioned room that never gets cold, where the TTW02B Sentinel gives you identical capacity and the same humidity sensor for less, or a temperature-only build, where the TTW02B Classic does. 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.
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.
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.
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.
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.
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.
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.
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.
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.
