The WetBox evaporative cooler contain inbuilt evaporative cooling pads and should be used as part of a mechanical ventilation system or air handling solution with a paired supply and extract fan. They are designed to be externally mounted and the standard configuration is down flow, where air is supplied from the base of the cooler into the area that requires cooling.

Configuration Options

WetBox, CoolBox, EcoCooling evaporative cooler,

Down Flow (12,600m3/hr)                 Side Flow (9,450m3/hr)                 Top Flow (12,600m3/hr)

Technical Specifications

Down Flow (Standard) Side Flow  Top Flow
Size (H x W x D) 950mm x 1150mm x 1150mm 950mm x 1290mm x 1150mm 1092mm x 1150mm x 1150mm
Weight Dry: 45kg  Wet: 82kg Dry: 45kg  Wet: 82kg Dry: 45kg  Wet: 82kg
Cabinet Injection moulded from polypropylene, UV stabilised and corrosion free
Electrical Requirement 240v 50Hz. 3A running. External isolator fitted
Water Requirement Water supply minimum 1 bar max 7 bar. Minimum supply 500L/hr
Warranty Two years parts only warranty subject to the cooler being maintained by EcoCooling approved service engineers


An input is available to enable and disable cooling in the evaporative cooler. An output is offered to communicate the state of the cooler.

Modes of Operation:

Cooling Mode: In cooling mode, the water circulation system is in operation and the cooling pads are wetted. Air is pulled over the pads by an external supply fan into the building. The evaporation of water from the pads results in a reduction in air temperature.

Alternative Options

EcoCooling WetBoxes are also available in a larger size (up to 18,000m3/hr), please see the EcoCooling WetBox Large product page for more details.  Alternatively, if you are looking at an installation where there is no outside plant space, call our installations team for advice about plant rooms or have a look at our ECT product ranges.

Installation Examples

The external WetBox range is ideal for data centre and air handling installations or IT environments which require closer temperature control. If you are looking for an active system (with an inbuilt fan) for industrial or warehouse cooling please see our EcoCooler product page.