Hailea Water Heaters

Stable reservoir temperatures for healthier roots

Hailea Water Heaters are fully submersible, thermostatically controlled heaters that warm and hold nutrient solution or tank water at a steady temperature, protecting the root zone from the cold shock of an unheated reservoir over winter. Hailea is a long-established name in aquatic and hydroponic kit, and the range spans 50W, 150W and 300W models to suit everything from a small tank to a large RDWC reservoir.

Key Benefits

• Fully submersible for placement directly in the tank or reservoir
• Built-in thermostat that holds your target temperature automatically
• 50W to 300W range to match different reservoir volumes
• Glass construction with an at-a-glance temperature indicator
• Protects root health by preventing sudden swings at the roots

Cold nutrient solution stalling growth in winter?

When reservoir temperature drops well below the optimum, root metabolism slows, nutrient uptake turns sluggish and the risk of root disease such as pythium climbs. A submersible heater holds the solution at a stable, grower-set temperature through cold snaps, taking one big variable out of the equation.

How to Use

• Fully submerge the heater in your reservoir or tank before switching on
• Set the thermostat to your target temperature (typically 18-22C for most crops)
• Match wattage to volume: 50W for roughly 50-70L, 150W for 150-260L, 300W for 260-450L
• Confirm the reading with a separate thermometer and check it holds steady