Calorex Vaporex DH33 Series Dehumidifiers for Indoor Pools




Calorex Vaporex DH33 Series Dehumidifiers for Indoor Pools

Calorex Vaporex DH34 Swimming Pool Dehumidifiers

1. Description

The Calorex Vaporex range of pool dehumidifiers represent an excellent balance of value for money and quality.

The DH33 models extracts 1.25 litres of water from the air per hour.

They are designed for small to medium sized pool rooms.

Please call us for help on sizing dehumidifiers.

The Calorex Vaporex units are made in the UK to high quality standards. Each unit is tested before leaving the factory.

The DH33 range has a defrost option available which is required for pool rooms where the air temperature will fall below 15c when the dehumidifier is operating.

Wall Mounted, Floor Mounted or Through the Wall Models

The DH33 range can be wall mounted, floor mounted or though the wall (TTW) models.

This allows them to be installed inside the plant room.

Calorex Vaporex DH34 Swimming Pool Dehumidifiers

Small ducts then pass through the wall into the pool hall

Calorex Vaporex DH34 Swimming Pool Dehumidifiers

2. Features

  • Through The Wall Model (TTW) available
  • High moisture extraction for low power consumption
  • Zero ozone depleting refrigerant
  • Low internal operating pressures = long useful life
  • Fan cycle or continuous mode
  • Air outlet adjustable to horizontal or vertical
  • Hot gas defrost (allows operation to 5°C air temperature)
  • Many options for flexible installation
  • Remote humidistat and on/off function
  • Models with air heating come with an air thermostat

3. Applications

  • Indoor pools
  • Therapy pools
  • Health clubs and wellness centres
  • Hotels and spa pools
  • Holiday parks and campsites

The dehumidifiers can either just dehumidify the air, or they can also heat the air. In order to heat the air in the pool room, you can use an existing boiler (eg gas or oil) to provide LPHW (low pressure hot water) to the unit.

As the unit dehumidifies the air, it will then also heat it using the heat supplied by the LPHW supply.

These units can be located in the plant room, as they come with the fixings to allow the Through the Wall Installation.


Calorex Vaporex DH34 Swimming Pool Dehumidifiers


4. Pricing

The base price of the dehumidifier is shown at the top of this page

You can add the options to obtain the correct price including the additions.

5. Specifications

Please see Specifications tab at the top of the page

6. Models Available

The dehumidifiers are available in:

  1. Wall mounted dehumidifier with Defrost
  2. Wall mounted dehumidifier with 3kW LPHW Heating
  3. Through the Wall dehumidifier with Defrost
  4. Through the Wall dehumidifier with Defrost and 3kW LPHW Heating

7. Availability

The lead time on Calorex Vaporex Dehumidifiers is normally around 3-5 days subject to availability.

8. Delivery

The price includes FREE UK delivery.

We can ship the Calorex Dehumidifiers to any country. Please contact us for a shipping quote.

9. Warranty

All Calorex Vaporex Dehumidifiers have a 2-year parts and labour warranty.

10. Product Literature

Please see the Literature tab at the top of the page for the Brochure and User Manual downloads.

11. Assistance?

If you need any assistance or advice as to which model would be best for your pool, please email us

for more information, also see our FAQs page

All items sold in accordance with our terms and conditions


They extract about 30 litres of water per day

  • Air delivery 440m3 per hour.
  • Power consumption 750W.
  • Noise level 48dBA.
SpecificationsUnitsDH 33/34
Operating temperature range°C5-35
Dehumidification @ 30°C/60% RHl/h1.25
Heat recovered to air @ 30°C/60% RHkW1.9
Air flowm3/h440
External static pressurePa0
Sound pressure level @ 3mdB(A)48
Power supplyV/Hz230/1ph/50
Nominal power consumptionkW0.75
Maximum supply fuseA10
LRA (compressor start)A15
Heater typeOptional LPHW
Heat output @ 80°C flowkW3
Flow ratel/min5
Product size (w x d x h)mm780 x 255 x 653
Condensate drain size
(flexible plastic hose)
mm ID16

The manufacturer’s brochure can be downloaded using the link below:-


Duratech BrochureCalorex Vaporex User Manual


We accept all major credit and debit cards, Bank Transfer (BACS) and Paypal

All major credit cards accepted

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The prices shown include FREE UK delivery for orders over £50 or £6.50 for orders under £50

We can ship to any country. Please contact us for a shipping quote.

The lead time on most items is normally on a 1-2 day delivery,  subject to availability. Please call to check availability.

Additional information

Weight60 kg


Mounting Choice

Wall Mounted, Through the Wall (TTW)