DH2500 Desiccant Building Dryer 34L


Industrial Dehumidifier DH2500 Desiccant
Used for indoor & outdoor areas
Large areas / Crawl Spaces / Lofts
Garages / Warehouses

  • 37 Litre Domestic & Commercial Desiccant Dehumidifier
  • Uses “3-hole” technology
  • Very low energy consumption in use for large extraction capacity
  • Strong enough even for the hire industry or public spaces
  • Very quiet for the large extraction
  • Compact all metal construction
  • Ideal for applications where drying is needed continuously
  • Ideal for main use below 17°C
  • Can be used to dry even at -20°C
  • Foam pre filter
  • Removable metal carrying handle on four feet.
  • Amp meter & Run hour meter
  • On / Off controls
  • Can be used with use remote humidistat – OPTIONAL
  • Wet air-out ducted with 80mm diameter ducting – OPTIONAL
  • Damp air-in / Dry air-out can be ducted with 125mm diameter ducting – OPTIONAL


34 litre, “three hole” DH2500 Desiccant Building Dryer Dehumidifier

Building dryer of compact size with a metal epoxy coated casing with carrying handles on four feet. Used for building drying, protection of garages, warehouses, server rooms, industrial processes. Can be carried by one person and transported easily.


Ecor Pro’s DH2500 Industrial Low Temperature Desiccant Dehumidifier

Designed in the UK as a unit fit for professional purpose. The DH2500 is Ecor Pro’s 3-hole desiccant industrial dehumidifier built to the highest standard with a very solid construction.  Input process air is dust filtered and dried.  Both input wet air (process air) and output dry air can be ducted with a 120mm duct.  Wet exhaust air can be ducted via a 80mm duct.

The Ecor Pro DH2500 desiccant building dryer is a great choice for hire companies, building firms or people in need to protect the environment of an area with a robust and reliable product. Perfect to dry out new builds where it will extract up to 34 litres per day working down to -40°C drying efficiently and drying cost effectively.

Being compact, the DH2500 desiccant dehumidifier can easily be carried by one person. Several DH2500 desiccant dehumidifiers can be transported at once in a light van or even in a normal family car without the fear of water leaks after of residual water in the tank.

The controls are equally robust & can be linked to a remote humidistat EPHUM220 or switched over to manual control with one switch. An analogue Amp Meter means that owners/managers can review performance and measure energy consumption for claiming back monies from insurance claims or other for their operation.

An run timer makes this ideal for the hire market clocking the number of hours the machine is in operation making it simple to charge per session of usage if so desired.

The DH2500 desiccant building dryer benefits from a simple reticulated dust filter in metal frame that can be shaken clean or easily replaced to prevent dust particles entering the unit and impeding performance.

Maintenance and eventual repair have been thought through with an easy to remove cover that gives easy access to replace cord sets or warn parts by a qualified persons quickly. Prolonging the lifetime of the DH2500 is easy.  An investment product for the professional user.

Designed to dry out areas fast, the Ecor Pro DH2500 desiccant dehumidifier is ideal for flood and water damaged buildings, boat maintenance, car garages, drying wet plaster or painted rooms, work drying rooms or for keeping items dry in a warehouse storage environment. Other applications also include using the DH2500 desiccant industrial dehumidifier in industrial processes that require drying including food preparation or remote outbuilding protection such as in electrical substations, gas or water pump houses, telephone exchanges and computer server rooms.

Applications in the past have included more diverse uses such as florists, hair dressers, bakers, hair dressers, caravans, holiday homes, yachts, funeral parlours and temporary housing structures such as Portokabins.

Ecor Pro’s research shows that the DH2500 will be four to seven times faster at drying buildings at low temperatures than a traditional compressor dehumidification system.

Using the Ecor Pro DH2500 Desiccant Dehumidifier

No standing time required after transport. Simple “Plug & Play” straight away.

In drying applications the exhaust duct can be extended without loss of performance up to 6 metres. At 9 metres performance will reduce by typically 30% and at 12 metres will reduce by 60%. No damage will be caused to an Ecor Pro DH2500 when the hose is extended. The Ecor Pro DH2500 is self regulating.

It is recommended that the Ecor Pro DH2500 desiccant dehumidifier is placed in a position higher than the outlet duct in order to ensure any condensate build up in the exhaust duct flows away if the unit is used in Mode 1 if the temperature the product is being used in is likely be less than zero degrees.

The Ecor Pro DH2500 desiccant industrial dehumidifier will resume operation straight after a power out making it ideal for use in locations where there is a danger of an interruption to the power supply.

The Ecor Pro DH2500 desiccant industrial dehumidifier’s 3-hole system means that the dehumidifier can be permanently (or semi-permanently installed).

DH2500 Building Dryer Operation Options Include:-

Mode 1 – Having the Ecor Pro DH2500 free-standing or mounted in the damp environment and ducting out the warm moist air through the 80mm duct giving a negative pressure to the room.

A simple application is to put the unit in a damp room and exhaust the damp air through a secure hole such as a wall vent, letter box or secured window, The loss of performance through ingress of air through any opening around the duct through the secured window or other is minimal (Regen air 13% of input air). Of course preventing the ingress of outside damp air will mean there is no performance loss and that can be achieved by using plastic sheets and tapes to mask any openings to damp air entering.

Mode 2 – Mounting the DH2500 externally and ducting dry air-out from the Ecor Pro Dh2500 through a 120mm diameter duct into a damp room to give a positive pressure system. The external air-in can also be ducted in through a 120mm diameter duct.

– All ducts can be vented with flexible ducting
– System can be pressure neutral.  Ideal for closed environments where bringing outside air into the drying area is not desired.  e.g. cold rooms


Applications in the past have included more diverse uses such as florists, hair dressers, bakers, hair dressers, caravans, holiday homes, yachts, funeral parlours and temporary housing structures such as Portokabins.

Ecor Pro’s research shows that the DH3500 desiccant industrial dehumidifier will be four to seven times faster at drying buildings at low temperatures than a traditional compressor dehumidification system those can not work below zero degrees also.
What is more, it provides all this drying power without excess noise using RadiCal low-noise fan technology for super quiet operation.

Difference Between DH2500 & DH3500 Building Dryers

dh2500 and dh3500 best desiccant dehumidifier

The DH3500 building dryer is slightly larger than the DH2500.  The DH2500 building dryer is used where pressure neutrality is not an issue & capacity need is less. The DH3500 can dry a room pressure neutral.

Neutrality may be important.  If wet air is ducted outside a building, then air from outside the building must come in to replace it.  15% of air is exhausted during operation with the DH2500.

The DH3500 building dryer can also be used like the DH2500 building dryer just with one duct venting wet air out.

As a note, the DH2500 & DH3500 can be used together with the BD900 or BD1200 building dryers that dry using compressor technology to condense the water. This hybrid operation gives the benefit of low temperature drying and condensing water to be collected in a container or can be pumped away.

Optional Parts For the DH2500 Desiccant Dehumidifier

– To regulate the humidity to a specific level from through a range of 40-90% Relative Humidity (RH) we recommend the Ecor Pro EPHUM220 external 220V humidistat that comes with the plug fitted & a 3m cord. This humidistat plugs straight into the front of the Ecor Pro DH3500. The humidistat can be placed in the room that requires regulating.

– Exhaust / Regen air tough ducting, 80mm diametre in 3 metre lengths.
– Inlet and/or Outlet tough ducting, 120mm diameter in 3 metre lengths.
– Reticulated foam filter

Duct lengths can be up to 6m without affecting unit performance

Product Description

Product Details
Product Details
Product Dimensions
W X D X H (mm)
352 x 445 x 345
410 x 550 x 490
including handle
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Power (W)900
Weight (Kg)
Nett / Gross
17.5 / 19.0Voltage & frequency Options (V)/(Hz)230/50 EU
110/60 USA
User Guide Available GB / FR / GE
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Power (A)3.5
CertificationCE / RoHs / EMCIP RatingIPX1
Items IncludedUser ManualNoise Level (dB)49
Items IncludedRaticulated Filter FoamTemperature Range
(Degrees C)
-20 to 40
Items IncludedFilter FrameAir Flow Process / Regen (m3/hr)
380 / 75
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Items IncludedPallet Qty EU / UK24 / 30
Optional ExtraExternal Humidistat
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Container Loading 20' / 40'
Optional Extra80mm Exhaust hose
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Optional Extra120mm Inlet or Outlet Air Duct
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Perfrmance at AHAM Conditions l/day25.2OEM OptionYes
Country of OriginUK

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