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OptiClimate Water Cooler – Closed Loop Grow Room Chiller

OptiClimate Water Cooler – Closed Loop Grow Room Chiller

Regular price £1,448.95
Regular price Sale price £1,448.95
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Description

Run Water-Cooled Climate Control Without a Mains Supply

OptiClimate water coolers let you run an OptiClimate water-cooled climate control system as a fully closed loop, with no connection to a mains water supply and nothing going down the drain. It sheds the heat picked up from your room by transferring it from the water or glycol to colder ambient air, so it must be sited outside. The sealed loop means no evaporation and filling once, and a pump is included. Operation is very quiet, from 28 dB(A), energy consumption is low, and no air conditioning engineer or cooling gas is required.

Key Benefits

  • Capacity from 4 to 53 kW across compact and industrial models
  • Fully closed system with no water consumption once filled
  • From 28 dB(A) in operation, quiet enough for residential and commercial buildings
  • Pump included with every water cooler
  • Very long runs possible between indoor and outdoor units
  • One outdoor unit can serve multiple indoor units when correctly sized

Heat Build-Up and the Cost of Running Water to Waste

Water-cooled climate control is the quietest way to hold a grow room temperature, but plumbing it to mains and drain is not an option in most buildings. Without proper heat rejection, temperature climbs under the lights, humidity follows and you get excessive stretch, poor nutrient uptake and airy flowers. A closed loop recycles the same charge indefinitely, so the room stays in range and the water bill does not move.

How to Use

  • Site the unit outside with clear air on the fan side
  • Connect to your OptiClimate system and fill the loop once with water or glycol
  • Wire it in with 3-core mains cable and 2 x 13 amp UK plugs (not included), one for the chiller fan and one for the pump
  • Pairing with a Revomax: a fan/pump controller is required and is not included

Technical Specifications

  • Type: closed-loop dry cooler for water-cooled OptiClimate units
  • Works with: OptiClimate Pro 3, Pro 4 and Revomax II
  • Coolant: water or propylene glycol mix
  • Water use: none once filled (sealed loop)
  • Sizing: 1 kW of cooler per 1 kW of unit output
  • Coil tube: 3/8" diameter
  • Fin spacing: 2.1 mm
  • Pump: included
  • Pump supply: 230 V 1-phase (basic) or 400 V 3-phase (inverter)
  • Pump connection: 1" female
  • Cooler connections: male thread
  • Siting: outdoors, 3 m clear in front of the fans
  • Not included: 3-core mains cable, 2 x 13 amp UK plugs, fan/pump controller
By size4.5kW Compact Vertical9kW Compact Vertical14kW Compact Vertical
Cooling capacity4.5 kW9 kW14 kW
Fan power60 W120 W180 W
Noise28 dB(A)31 dB(A)33 dB(A)
Fans1 x 350 mm2 x 350 mm3 x 350 mm
Water content2 L4 L6 L
Connections1/2" M3/4" M3/4" M
Dimensions65 x 32 x 41cm120 x 32 x 41cm175 x 32 x 41cm
Weight7kg13kg19kg
By size18kW Compact Vertical32kW Compact Vertical12kW Industrial Vertical
Cooling capacity18 kW32 kW12 kW
Fan power240 W360 W270 W
Noise34 dB(A)36 dB(A)32 dB(A)
Fans2 x 350 mm6 x 350 mm1 x 500 mm
Water content8 L21 L6 L
Connections1" M1 1/4" M3/4" M
Dimensions120 x 32 x 81cm175 x 32 x 81cm102.5 x 60 x 93.3cm
Weight26kg52kg63kg
By size17kW Industrial Vertical32kW Industrial Vertical32kW Industrial Horizontal
Cooling capacity17 kW32 kW32 kW
Fan power270 W600 W360 W
Noise32 dB(A)40 dB(A)36 dB(A)
Fans1 x 500 mm1 x 630 mm6 x 350 mm
Water content11 L19 L21 L
Connections1" M1 1/4" M1 1/4" M
Dimensions102.5 x 60 x 93.3cm160 x 60 x 98.3cm160 x 60 x 98.3cm
Weight76kg125kg125kg

FREE Express Delivery on orders over £99. We aim to post same day on Express Delivery — order by 3pm Mon–Fri — and delivery takes 1–2 working days. A few harder-to-stock or large, bulky items can take a little longer — we'll tell you if that applies to your order. Heavy-item surcharges are always shown at checkout before you pay — we only ever charge what delivery costs us. Prefer to collect? Free pickup at our Wembley store.