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Looking for the most reliable heating technology at a fraction of the cost? We have a limited stock of Hydor Theo Heaters available as 2nd-hand units. These heaters are world-renowned for their patented PTC (Positive Temperature Coefficient) technology, which makes them far more durable and safer than standard glass heaters, even when pre-owned.
Each unit has been fully tested and inspected to ensure the thermostat is accurate and the heating element is performing perfectly.
Shatterproof Performance: Thanks to PTC technology, these heaters are resistant to thermal shock. They won't crack if removed from water while hot—a major safety advantage for used equipment.
Self-Regulating Safety: The heating element is designed to never exceed a safe temperature, significantly reducing the risk of overheating your tank.
Fully Tested: We ensure that every 2nd-hand Theo heater maintains its "click-set" accuracy for precise temperature control.
Sustainable Choice: Buying 2nd-hand is an eco-friendly way to get professional-grade equipment while reducing electronic waste.
