Heating

Visitherm heater stats are extensively recognised as the most accurate and the most reliable heater stat available. The Visitherm heater stats reliability is backed up by a 5 year manufacturer's warrantee.

Tropical freshwater and marine fish require a stable temperature of around 24-27°C, in order to remain healthy and in good condition. The TetraTec HT range of heaters maintain a constant temperature via an in-built thermostat, making it easy to provide the correct conditions.

Made by the makers of the renowned Visitherm, the fully submersible Newatt heaterstat also offers superb accuracy and reliability.

The robust polymer and aluminium cylinder makes them virtually unbreakable and allows all round heat distribution protected by a reinforced plastic casing to prevent thermal and mechanical shocks. As these heaters are designed for safe and continuous use they are resistant to sudden temperature changes.

The sensitive and reliable thermostat ensures a constant temperature, and even has a built in sensor that automatically switches the heater off when out of water and restarts when re-submerged.

The EcoTherm heaterstat is accurate and reliable, and represents fantastic value for money. Preset at 26°c

The temperature can be precisely adjusted from 18° to 34°C and readjusted if required. The control accuracy is +/- 0.5°C.
The heat is controlled to a constant temperature. The heating function is indicated by an on/off control lamp
The heater can be fully immersed, is protected against running dry and is suitable for fresh or marine water.
The glass jacket enlarges the geating surface and ensures optimum even heat transfer. Thus, a smaller wattage than other brands will heat the same volume of water.
Jacket of laboratory safety glass.

Hydor Eth External Thermal Heaters are an innovative way of heating of heating your aquarium accurately and reliably, without having to have a cumbersome heaterstat within your tank.

First and unique external heater for aquariums with exclusive PTC (Positive Thermal Coefficient) technology.
Easy to connect to any canister filter.
The self limiting PTC heating element guarantees maximum safety against any risk of overheating.
High precision electronic temperature control with signal light.
Build with solid self extinguishing material for extra safety.

Spare heater holder and suction cups

Protects aquarium inhabitants from touching the heater.

Sticks to the outside of an aquarium and monitors the water temperature in both Centigrade and Fahrenheit.

Monitors the aquarium water temperature in both Centigrade and Fahrenheit.

Suitable for freshwater or salt water. Built in alarm to warn of failure. Batteries included.

LED display, batteries included.