Calorex Monitair DH75AX Dehumidifier with Defrost

In stock
Special Price £3,999.00 Regular Price £5,130.00
Quick Overview

The DH 75 range are a floor standing high performance and high capacity dehumidifiers. With high moisture extraction for low energy use, as well as being corrosion free and easy to clean, makes them idea for dehumidifying your pool hall. Also available are options for additional air heating, and through the wall installation that can be situated adjacent to the pool hall.

Secured and trusted checkout with

Almost all solid materials allow moisture vapour to pass through. Brick, plaster, concrete, wood - all present no obstacle at all to the moisture held in swimming pool air. When warm, moist air cools on its way through the structure, interstitial condensation can occur hidden deep inside the building fabric. Within weeks insulation can become sodden, causing collapse of roofs and ceilings. Out of sight, mould and bacteria growth are rapid and, if left unchecked, timbers will rot and structural steel will corrode. By the time you notice, its too late - the damage has been done!

Calorex dehumidifiers cleverly convert the energy locked up in the moisture into heat used to heat the room. The free heat recovered by dehumidification is not only “green”, but it accelerates the drying process, keeps your boiler off for longer, reduces the evaporation from the pool and creates a warm dry environment for you to relax in.

Our wide range of dehumidifiers ensures there is a suitable system for your pool, from a simple wall hung dehumidifiers to larger floor standing environmental control systems. Both the Monitair and Vaporex ranges can be supplied as “through the wall” (TTW) models, for installation outside the pool hall. Vaporex and Monitair can satisfy the most demanding of pool owners.


  • High moisture extraction for low power consumption
  • Corrosion free, easy to clean aluminium air grille with easy clean air filter
  • Zero ozone depleting refrigerant
  • Low internal operating pressures = long useful life
  • Adjustable air outlet
  • Quiet centrifugal fans, two speeds
  • Hot gas defrost (allows operation to 5°C air temperature)
  • Remote humidistat and on/off function


  • Through the wall version
  • LPHW air heater complete with 3 way valve and 12V thermostat interlock
  • 400V-3ph option for DH 110


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


Specifications Units DH 75AX DH 110AX
Operating temperature range °C 5-35 5-35
Dehumidification @ 30°C/60% RH l/h 3.6 4.5
Heat recovered to air @ 30°C/60% RH kW 4.0 5.2
Air flow m3/h 1180 1180
External static pressure Pa 0 0
Sound pressure level @ 3m dB(A) 53 53
Refrigerant   R407c R407c
Power supply V/Hz 230/1ph/50 230/1ph/50
Nominal power consumption kW 1.5 2.1
FLA A 9.5 12
Maximum supply fuse A 13 20
LRA (compressor start) A 55 66
Heater type   Optional LPHW Optional LPHW
Heat output @ 80°C flow kW 8.9 8.9
Flow rate l/min 9.6 9.6
Product size (w x d x h) mm 1520 x 385 x 796 1520 x 385 x 796
Weight kg 143 144
Condensate drain size
(brass compression)
mm ID 15 15
More Information
Manufacturer Calorex
Country of Manufacture United Kingdom
Re-stock date Direct from Supplier
% of 100
Write Your Own Review
You're reviewing:Calorex Monitair DH75AX Dehumidifier with Defrost