Hydor Heater ETH

What is the Hydor Heater ETH range?

Each Hydor Heater ETH is a Hydor external heater that has been designed for aquarium use, alongside external filters. The external heater guarantees maximum safety as it connects to your external filter tubing, allowing filtered water to pass through the practical connection system, be heated to the desired temperature and then return to your tank, with no risk to your aquarium life. It can also be used in sump tanks and can heat the water as it returns from the sump.

This range of heaters comes in three sizes to suit a range of tanks, find out which heater is right for your tank in the table below.

What are the benefits of these heaters?

Each Hydor ETH heater is designed to take up as little space as possible and hang via a built-in eyelet. The design sits alongside canister filters well and the components guarantee maximum safety thanks to rigorous testing from Hydor. Each unique external heater also features a self-regulating PTC (Positive Thermal Coefficient) system, which protects your fish and other aquarium components from the heater overheating.