Self Contained Houdini Cooling Unit 1800H-ECX #25544

9 Reviews
SKU: 25544 1800H-ECX Houdini
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CellarPro 1800H-ECX Cooling Unit (P/N 25544). NOW WITH ENERGY-EFFICIENT EC FANS! CellarPro engineered the 1800H-ECX cooling unit specifically for shallow-depth glass wine cellars.

Just 10 1/2-inches deep and 10-inches tall, the 1800H-ECX Houdini cooling unit is designed to "disappear" inside - or atop - the cellar. Dual independent variable-speed fans offer flexibility to trade-off between super-quiet operation vs maximum performance.

For example, assuming 75F ambient temperature, R13 insulation in the non-glass walls and no ducting, the 1800H-ECX would work in the following cellars:

Cellar Dims
Cu Ft

Glass Sq Ft
Glass Pane

6'w x 2 1/2'd x 9'h 13554 (Front Wall) Single60F1735
7'w x 2 1/2'd x 10'h 17570 (Front Wall) Double55F1681
7'w x 2 1/2'd x 10'h 175120 (Front & Side Walls) Double58F1922

All air-cooled refrigeration equipment requires fresh air intake to dissipate the heat generated by the cooling unit. The fresh air intake CANNOT come from the wine cellar space - it must come from space outside the cellar.


1864 SENSIBLE BTUH @ 55F.  
CellarPro's 1800H-ECX cooling unit (1/5 Ton Nominal) is the first cooling unit designed specifically for glass-enclosed wine cellars, and uses energy-efficient variable-speed EC fans for maximum performance. Features include:


  • Shallow height and depth 
    • Fits shallow glass enclosures
    • 10 1/2"D x 10"H
    • 36 1/2"W


  • Can be placed inside the cellar, atop the cellar, partially installed in the cellar ceiling, or completely remote from the cellar and ducted
    • Choice of airflows for cold side
      • Intake from bottom or left side
      • Exhaust from bottom or front side
      • Air deflector optional
    • Choice of airflows for hot side
      • Intake from top or right side
      • Exhaust from the rear or the top side (the top exhaust offers 2 orientations)
      • Air deflector optional
    • Houdini cooling units can be ducted as follows:
      • Cold side:
        • Up to 50 equivalent feet (25' per duct) with required 8-inch insulated ducting
        • Intake from the left / exhaust from the front
        • High fan speed required for ducted installations
      • Hot side:
        • Up to 50 equivalent feet (25' per duct) and 85F maximum intake temperature (no auxiliary fan required) with required 6-inch ducting
        • With an auxiliary inline fan, up to 100 equivalent feet (50' per duct) and 95F maximum intake temperature
        • Intake and exhaust from the top
        • High fan speed required for ducted installations
      • When ducting a Houdini cooling unit, our OEM duct hoods MUST be used, and the HIGH fan speed must be used 


  • Energy-efficient variable-speed EC fans with independent controls - choose between performance vs noise
    • Hot side - higher ambient temps require high fan speed
      • Low fan speed: 49 dBA / 85F maximum intake temperature
      • High fan speed: 55 dBA / 95F maximum intake temperature
    • Cold side - higher cooling load requires high fan speed
      • Low fan speed: 1456 SENSIBLE BTUH @ 55F / 51F lowest achievable cellar temperature
      • High fan speed: 1864 SENSIBLE BTUH @55F / 47F lowest achievable cellar temperature on hot, cold or both sides


  • Oversized stainless-steel drain pan with 100W heating element
    • Included as standard equipment
    • No drain line required for properly constructed, airtight cellars
    • Optional overflow drain fitting and 8' flexible drain line


  • Choice of power source
    • Side or rear
    • Removable 10-ft cord


  • Bottle probe is included as standard equipment 
    • The HY setting on the cooling unit must be changed to 1 when using a bottle probe
    • We recommend using the probe filled with water and 10% rubbing alcohol to keep the water from developing mold
    • The bottle with the probe should be located inside the cellar, near the top of the cellar, in a central location with good airflow (ie not buried in the racks nor in a corner)

Before purchasing this unit, let us calculate the thermal load of your wine cellar.

Please note:  
1800H Houdini cooling units should pull air from and be installed in conditions ranging from 40F to 95F. When the cooling unit is partially or fully exposed outside the cellar, especially if the cooling unit will be located in a warm, humid environment, we recommend insulating the left 13-inches of the cooling unit with 1-inch closed-cell foam insulation (R-4 or better).  

Our cooling units are designed to be used in properly-constructed wine cellars that are adequately insulated, airtight and sealed with a vapor barrier. In improperly-constructed cellars, the cooling unit will create excess condensation, leading to damage and premature failure of your cooling unit (not covered by warranty).


  • Features energy-efficient EC Fans on both the cold and hot sides
  • This unit can be configured to pull fresh air ranging from -20 to 95F. If the unit's location does not provide sufficient room for the unit's exhaust to dissipate and/or fresh air to be provided, you may need to purchase a rear duct kit. We recommend the addition of a fan cycling switch when fresh air intake will be below 20F.
  • The unit must be placed indoors in an area that is above 32F.
  • Dual high-output fans come with independent variable speed settings for your choice of maximum cooling power at the high fan speed (required for ducted installations), or super-quiet operation (49 decibels) at the low fan speed.
  • Adjustable humidity control combines a high-output compressor with flexible fan cycles to maintain a recommended level of moisture inside your cellar.
  • Custom coils generate maximum cooling power inside the cellar.
  • Excess condensate is managed with a high-capacity stainless steel condensate pan and 100W electric heating element.
  • Commercial-grade Electrofin coating protects the evaporator coils from leaks and corrosion.
  • Intuitive LED display panel mounted on the evaporator with digital programmable thermostat is simple and easy to use. Remote thermostat is available as an upgrade.
  • Bottle probe is included as standard equipment
  • Energy-saver mode, quick-chill mode, and auto-defrost cycle provide convenient solutions to common cellar needs.
  • Temperature set point range is 47F to 62F when the cooling unit is properly sized.
  • Unit operates with minimal vibrations and less noise than comparable units from competitors.
  • Audible and visual alarms and maintenance-needed indicator protect the cooling unit and the wine cellar.
  • With dual power sources and a 10-foot power cord, the unit can be plugged into a receptacle from either the rear or right side of the cooling unit, providing flexibility for most installations.
  • Common dedicated 15-amp circuit is required to power the unit.
  • Mounting brackets, included as standard equipment, ensure easy installation.
  • Removable steel case provides access to the internal components for servicing and repair.
  • CellarPro's 5-Year Standard Warranty, the most thorough in the industry, protects the unit against manufacturing defects.
  • An optional Extended Warranty (P/N 1836) is available for additional protection.
  • ETL Tested and Certified to rigorous UL Standards for safety.


  • CellarPro 1800H-ECX cooling units are self-contained, fully-charged units designed to be attached to the ceiling inside the cellar, or above the cellar.
  • 1800H-ECX units also can be located remotely from the cellar with the addition of one of our cold-side duct packages. Offered with or without insulated flex ducting, in a choice of configurations for low or high humidity conditions, our cold-side duct packages allow these cooling units to be ducted up to 50 equivalent feet (25' per duct). Ducting must be 8-inch (or greater) from start to finish.
  • When calculating equivalent feet, each 90-degree turn counts for 8 feet.
  • For remote or inaccessible installations, we offer a remote control display kit which is wired to the cooling unit and allows the digital display to be mounted inside or outside the cellar.
  • 1800H cooling units require fresh air intake without interference from the unit's hot air exhaust. If sufficient space does not exist to provide fresh air, you may need our hot-side duct kit. The temperature of the fresh air intake should be within a range of 40F to 95F
  • The cold side of the cooling unit should never be exposed to temperatures below 32F.
  • A CellarPro cooling unit must always be used in the upright position, and should never be operated on its side or upside down.

Specs & Resources

Brand: CellarPro

UPC: 077757255441

Size: 36 1/2w x 10 1/2d x 10h (in)

Weight: 80 lbs

115V AC / 60 Hz
Compressor Amps:
- Startup (LRA): 22.2 Amps
- Unit Amp Rating: 4.7 Amps
- Total Watts with Fans on High: 411
- Total Watts with Fans on Low: 399
- Compatible with Dedicated 15-Amp Circuit

BTUH @ 55F:
- Low Fan Speed: 1456 BTUH
- High Fan Speed: 1864 BTUH
- 1/4 Ton Nominal

Sizing Table: Click here to view sizing table

Warranty Resources
- Warranty Overview
- Limited Warranty - 2 Years (Entire System) / 5 Years (Compressor)
- Optional Extended Warranty (sold separately).

Click on one of the following links for more information:

Options & Upgrades

Cold Temperature
CellarPro 1800H Houdini units must be located in environments ranging from 40F to 95F

Duct and Sound Hoods

  • Hot Side Duct Hood#25563and Kit #25562: allows you to install the unit in a small space with limited airflow, and duct the airflow up to 50 equivalent feet (25 feet per duct)
  • Cold Side Duct Hood #35618and Kit#35619: permits the cooling unit to be located remotely and duct the airflow up to 50 equivalent feet (25 feet per duct).
  • Duct Kits are the same as Duct Hoods, and also include 2 x 25-feet of R-6 insulated flex ducting.
  • Sound Hood #30827: reduces the noise level of our Houdini cooling unit by 5 decibels; no assembly is required.

Filters & Grills

  • Use our filter & grill guide to find the cooling unit filter or duct filter and/or duct grill that is appropriate for your cooling unit.


Remote Control & Probe

  • Remote Display #1603: lets you place the digital panel wherever you want, whether inside or outside the cellar. Includes 10 feet of wiring.
  • Bottle Probe #1434: this remote thermostat with a 10-foot cord overrides the thermostat on the face of the cooling unit, and allows it to monitor air or liquid temperatures at various locations inside the cellar. Included.
  • Bottle Probe Extension Cords available in 25-foot (#1780) and 50-foot (#1781) lengths.

Other Options & Upgrades

  • Condensate Drain Line: strongly recommended for wine cellar installations that are not airtight, a drain line allows excess moisture to drain from the the cooling unit (#1606).

Nobody protects your wine cellar better than CellarPro Cooling Systems! In the event your cooling unit fails and the failed components are covered by our warranty, we'll send a replacement cooling unit to you per the terms of our Replacement Unit Program

CellarPro Replacement Unit Program
If your CellarPro cooling unit fails and the parts that failed are still covered by warranty, we'll send a replacement cooling unit to you, as follows:

  1. Your cooling unit must be registered at CellarPro
  2. Your cooling unit must have been properly sized, installed and maintained
  3. Your cooling unit may not have been permanently modified, damaged or disfigured

Please note:

  • Replacement units are factory-refurbished cooling units with a similar build date as your original unit
  • You are responsible for the shipping cost to send the replacement unit to you and return the original unit to us, and the cost (if any) to remove the original unit and install the replacement unit
  • In order to send a replacement unit, we require a deposit, which will be refunded minus shipping costs upon the return and pending the inspection of the original unit
  • If the original unit failed due to improper intallation or use, the failure is not covered by warranty and we will deduct the cost of the repairs from the refund of your deposit


What is "Sensible BTUH"?

A: You should always use Sensible BTUH* when comparing different brands of cooling units, and when sizing a cooling unit for your wine cellar. Every cooling unit produces a certain amount of Total BTUH, which is the sum of Sensible BTUH (lowers the temperature) and Latent BTUH (lowers the relative humidity). Because our goal is to cool wine cellars while preserving humidity, wine cellar cooling units should have high Sensible BTUH and low Latent BTUH. The relationship between Sensible and Latent BTUHs is know as SHR (Sensible Heat Ratio), which is calculated as Sensible BTUH/Total BTUH. The SHR for CellarPro cooling units is greater than 90%, which means that CellarPro units provide maximum cooling power without stripping out humidity from the cellar environment.

*CellarPro Sensible BTUHs are calculated assuming 55F cellar temperature, 60% relative humidity and 95F ambient for all units except 1800 units (85F ambient).

How do I pick between this unit and the 1800XTS?

A: This cooling unit and the 1800XTS provide the same BTUH output, and therefore can be used to cool wine cellars with similar thermal loads. The biggest difference is that the 1800XTS was designed - and works best - when installed through-the wall, with the front 8 inches of the cooling unit inside the wine cellar. Also, the cold side of the 1800XTS cannot be ducted unless the cooling unit is located directly above the cellar. In contrast, the 1800H-ECX cooling unit was designed for shallow-depth installations, inside or atop the cellar. In addition, the 1800H-ECX can be placed up to 50 equivalent feet away from the wine cellar and ducted. Other differences include an advanced condensate management system in the 1800H-ECX, which has a large stainless steel drain pan and 100W condensate evaporator, as well as variable-speed fan control and removable power cord in the 1800H-ECX cooling unit.

How cold can the temperature be where the cooling unit pulls air?

A: For installations in environments below 40F down to 20F, we recommend adding our compressor heater (P/N 1727), which is included as standard equipment on all outdoor units. Below 20F, in addition to the compressor heater, we recommend adding our fan cycling switch (P/N 6972)

Does the unit really need a dedicated circuit?

A: First, the background. Unlike our competitors, we build our cooling units with precision expansion valves, not cap tubes, which means that our cooling units aren't limited to a 30F differential between the desired cellar temperature and the ambient temperature. Cooling systems with expansion valves are much more precise than cap tubes, and much more sensitive to low voltage conditions, which is why our units require dedicated circuits. When we say "dedicated circuit", we mean that the circuit shouldn't have any items that require heavy draws of electricity - eg other appliances, vacuum cleaners, big-screen TVs, blow-dryers - on the same circuit as the cooling unit. Lighting, computers or other low-draw items shouldn't be a problem on the same circuit.

Can the cooling unit be located in a remote location and ducted to/from the wine cellar?

A: These cooling units can be ducted up to 50 equivalent feet away from the wine cellar when used with our cold-side (front) duct hoods and kits. Remember that cold-side ducting must be insulated and additional load should be added to properly size the required cooling unit.

Can I install the entire unit inside the cellar?

A: These cooling units can be installed completely inside the wine cellar, attached to the ceiling, with the hot air exhaust and fresh air intake pushed to and pulled from the space above the cellar.

If I don't have sufficient space to pull fresh air, is that Ok?

A: The hot side of the cooling unit generates hot air that must have sufficient space to dissipate, otherwise the unit will recycle its own hot air. The hot air exhaust and/or intake can be ducted to another location with our hot-side duct hoods and kits, which allow supply and return airflows to be redirected to and from a temperature controlled environment OUTSIDE the cellar.

Can I use the low fan speed setting on the cooling unit when the unit is ducted?

A: Duct hoods and kits create additional static pressure and therefore require the use of the high fan speed to overcome the additional static pressure.

Do I need the condensate drain line?

A: If you are using the cooling unit in an airtight cabinet or cellar, you probably don't need the drain line. To the extent that condensate is created, the 100W heating element inside the cooling unit reduces drainage as it helps to burns off condensate before it reaches the drain line. However, if your cabinet/cellar was built without a vapor barrier, or there are gaps where the door(s) closes against the cellar, you will need the drain line to allow excess condensate a path to be released to a designated location.

Ratings & Reviews

9 reviews

Great team and product

by -

Purchased this until after having CellarPro calculate what was needed. Easy to install and operate. They followed up to see how thing went and were very helpful.

CellarPro Houdini


It was a pleasure discussing the particular needs for my pretty unusual design of wine cabinet. After tossing all the possibilities around, even considered thermo electric units, I settled on two 1800H units. Brian Adams' patience was refreshing as he helped me through my severe case of analysis paralysis. The units arrived in excellent condition, it was the only shipment that arrived without any damage out of the last five I received. Want to thank you for all the effort invested, from initial conception to final delivery. Will keep you posted as installation progresses. Thank you.

Wine Closet


Built a custom wine closet and used the 1800H fully ducted Configuration. Working perfectly for my situation. Had one duct adapter damaged during shipping. Notified CellarPro Friday and received replacement Monday, great customer service! Unit was quieter than expected as some reviews complained on the noise level. I also insulated the back half of the unit with 1” foam as indicated in the owners manual and that made it even quieter. Very satisfied.



This condenser breaking after one year IS a significant issue. I could not find any information on how to install the new unit. Plus, and this is if most importance, how in God’s name do they expect a 68 year old person to replace a 100 lb. condenser? They don’t provide any service assistance. Sad to say I have a beautiful looking wine cabinet that does not work.<br><br><b>Reply from CellarPro</b><br>We are very sorry that your cooling unit failed prematurely, and we understand your frustration. Your case has been escalated, and a manager will be contacting you asap to provide assistance.<br><br><b>Customer Addendum</b><br>CellarPro reached out to me after I informed them of my concerns with the replacement of a condenser. They identified an excellent local company familiar with this type of install, and they arranged for them to install the new system and ship back the old system, at no cost to me. I am extremely satisfied with the support I received from Customer Support and I’m pleased to report that I now have a beautiful looking wine cabinet that is working properly. Thank you for addressing my needs related to the condenser installation.

Houdini. The name says it all!

by -

Genius design and well made unit!

Best of the Bunch


Had my Houdini for over a year now and it works well. I have had to replace the unit recently since it stopped cooling. Probable cause is the hot side fan has burned out. Cellarpro sent a new unit and will refund the cost of that ($1000) on receipt of the old one. New unit works great but I hope it runs longer than 1 year.

Best of the Bunch


Had my Houdini for over a year now and it works well. I have had to replace the unit recently since it stopped cooling. Probable cause is the hot side fan has burned out. Cellarpro sent a new unit and will refund the cost of that ($1000) on receipt of the old one. New unit works great but I hope it runs longer than 1 year.

Houdini's Rock!


The dream came true thanks to the CellarPro team.... These Houdini's are great and we use them in 80% of our projects currently.. They are low profile, many options, quiet and very popular! John Lutz

Better than the excellent 1800XTS in almost every way


I have the 1800XTS, but my experience with it tells me that this new model solves all the little naggy details I can think of for improving the otherwise excellent XTS model. Variable fan speeds, being able to duct both the hot and cold sides, and its less intrusive shape. You do need to look at what kind of intake / return configuration you need, how you will be routing the ducting, if in fact you need it, and may in fact find the XTS fits you better.
<br>Only negative I can think of is the fact that it is in fact brand new, so there bay be some design quirks that may need to get ironed out with the first year model of everything. I would recommend buying the enhanced warranty, and have better peace of mind.