{"product_id":"eheim-thermo-control-heater-400w","title":"EHEIM Thermo Control Heater 400w","description":"\u003ch2\u003eEHEIM Thermo Control Heater 400w\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eEHEIM Thermo Control Heater 400w\u003c\/strong\u003e is an electronically controlled, fully submersible aquarium heater that keeps your water at a stable, accurate temperature for the fish and invertebrates that depend on it. Sold as the EHEIM thermocontrol-e 400, this 400 W model is built for large aquariums of 1000 to 1200 litres (264 to 317 gal) and suits both freshwater and marine set-ups. It is designed for South African fishkeepers running big display tanks who want a reliable, German-made heater for tropical or subtropical livestock.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eKey Benefits\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003ePrecise, adjustable temperature:\u003c\/strong\u003e Set the water temperature anywhere from 20°C to 32°C. The electronic control holds it to within ±0.5°C of your chosen setting.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLaboratory glass coating:\u003c\/strong\u003e A special laboratory glass coating enlarges the effective heating surface and also acts as a heat shield, which helps spread warmth evenly through the water rather than creating hot spots.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBuilt-in dry-running protection:\u003c\/strong\u003e EHEIM's Thermo Safety Control protects the heater if it runs dry, for example when water levels drop during maintenance or through evaporation.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFully submersible and waterproof:\u003c\/strong\u003e The heater can sit completely underwater, giving you flexible placement options in the tank or sump.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFreshwater and marine use:\u003c\/strong\u003e Safe for fresh water and salt water, so one heater model covers community tanks, cichlid displays and reef or fish-only marine systems.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDual-colour status lamp:\u003c\/strong\u003e The control lamp glows red while the heater is warming the water and turns green once your set temperature is reached, so you can check its status at a glance.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDurable, eco-friendly glass:\u003c\/strong\u003e The coating is made from eco-friendly laboratory glass that resists chemical and biological influences, contains no pollutants and is resistant to condensation problems and impact.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHandles temperature swings:\u003c\/strong\u003e The glass withstands extreme temperature changes, such as those during water changes when fresh water of a different temperature is added.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMade in Germany:\u003c\/strong\u003e Engineered and manufactured in Germany to EHEIM's standards of precision and reliability.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e3-year warranty:\u003c\/strong\u003e Backed by a 3-year warranty for added peace of mind on a long-term piece of life-support equipment.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003e\u003cstrong\u003eHow to Use\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eBecause the thermocontrol-e 400 is fully submersible and waterproof, it can be placed completely underwater in your aquarium. Choose your target temperature between 20°C and 32°C to match the needs of your livestock. The lamp shows red while the heater is working and green once the water has reached the set temperature. From there the electronics keep the temperature within ±0.5°C, giving tropical and subtropical fish the steady conditions they need.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eSuitable For\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eAquariums of 1000 to 1200 litres (264 to 317 gal)\u003c\/li\u003e\n\u003cli\u003eFreshwater aquariums\u003c\/li\u003e\n\u003cli\u003eMarine (saltwater) aquariums\u003c\/li\u003e\n\u003cli\u003eTropical and subtropical fish that need a consistent, controlled temperature\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003e\u003cstrong\u003eCompatibility\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThis 400 W model belongs to the EHEIM thermocontrol-e range, which comes in 10 different wattages covering tanks from 20 to 1200 litres (5.3 to 317 gal). The 400 W unit sits at the top of that range and is matched to the largest aquariums, 1000 to 1200 litres. If your tank is smaller, a lower-wattage model from the same series is the better match.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eSpecifications\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eBrand: EHEIM\u003c\/li\u003e\n\u003cli\u003eModel: thermocontrol-e 400 (400 W)\u003c\/li\u003e\n\u003cli\u003eRecommended aquarium volume: 1000 to 1200 litres (264 to 317 gal)\u003c\/li\u003e\n\u003cli\u003eTemperature range: 20°C to 32°C\u003c\/li\u003e\n\u003cli\u003eControl accuracy: ±0.5°C\u003c\/li\u003e\n\u003cli\u003eControl type: electronic\u003c\/li\u003e\n\u003cli\u003eSafety: Thermo Safety Control dry-running protection\u003c\/li\u003e\n\u003cli\u003eConstruction: fully submersible, waterproof, eco-friendly laboratory glass coating\u003c\/li\u003e\n\u003cli\u003eWater type: fresh water and marine\u003c\/li\u003e\n\u003cli\u003eIndicator: dual-colour control lamp (red = heating, green = set temperature reached)\u003c\/li\u003e\n\u003cli\u003eOrigin: Made in Germany\u003c\/li\u003e\n\u003cli\u003eWarranty: 3 years\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003e\u003cstrong\u003eA Legacy of Aquarium Heating\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eEHEIM's heater line traces back to engineer Eugen Jäger, the inventor of the aquarium heater. The thermocontrol-e is the latest electronically controlled version of that design, a clear step on from traditional heaters. It focuses on precise control, easy operation and safety, so your tropical and subtropical fish get a stable, well-managed habitat.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eWhat's Included\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eEHEIM thermocontrol-e 400 aquarium heater, 400 W, for aquariums of 1000 to 1200 litres (264 to 317 gal)\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003e\u003cstrong\u003eFrequently Asked Questions\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eIs the 400 W model the right size for my tank?\u003c\/strong\u003e\u003cbr\u003e\nThis heater is rated for aquariums of 1000 to 1200 litres (264 to 317 gal). The thermocontrol-e series comes in 10 wattages covering 20 to 1200 litres, so a smaller tank is better served by a lower-wattage model from the range.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCan I use this heater in a marine or reef aquarium?\u003c\/strong\u003e\u003cbr\u003e\nYes. The thermocontrol-e 400 is safe for both fresh water and marine water. Its laboratory glass coating resists chemical and biological influences.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat happens if the water level drops and the heater is exposed?\u003c\/strong\u003e\u003cbr\u003e\nThe heater has EHEIM's Thermo Safety Control, which provides dry-running protection. This is useful during water changes or when evaporation lowers the water level in warm South African weather.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWill adding colder or warmer water during a water change damage the glass?\u003c\/strong\u003e\u003cbr\u003e\nThe eco-friendly laboratory glass coating is designed to withstand extreme temperature changes during water changes. It is also resistant to impact and condensation problems.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDoes this heater also cool my aquarium in a hot South African summer?\u003c\/strong\u003e\u003cbr\u003e\nNo. It is a heater with a set range of 20°C to 32°C, and it cannot lower the water temperature. If your tank overheats in summer, you will need a separate cooling solution such as an aquarium chiller.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eHow do I know the heater is working?\u003c\/strong\u003e\u003cbr\u003e\nThe dual-colour control lamp glows red while the heater is warming the water. It turns green once your chosen temperature has been reached, and the electronics then hold it within ±0.5°C.\u003c\/p\u003e","brand":"DARO","offers":[{"title":"Default Title","offer_id":39308885524534,"sku":"4011708004920","price":2755.0,"currency_code":"ZAR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0151\/9016\/3510\/products\/eheim-thermo-control-heater-400w-precise-temperature-aquarium-heating.jpg?v=1743702632","url":"https:\/\/jungleaquatics.com\/products\/eheim-thermo-control-heater-400w","provider":"Jungle Aquatics Pet Store","version":"1.0","type":"link"}