--- product_id: 48157804 title: "Fluval E Advanced Electronic Heater, 300 W" brand: "fluval" price: "$U6692" currency: UYU in_stock: true reviews_count: 13 category: "Fluval" url: https://www.desertcart.uy/products/48157804-fluval-e-advanced-electronic-heater-300-w store_origin: UY region: Uruguay --- # Real-time LCD temp display 300W precise heating Dual-sensor safety tech Fluval E Advanced Electronic Heater, 300 W **Brand:** fluval **Price:** $U6692 **Availability:** ✅ In Stock ## Summary > 🌊 Stay cool, stay warm, stay ahead—Fluval E Advanced Heater keeps your aquarium in the perfect zone! ## Quick Answers - **What is this?** Fluval E Advanced Electronic Heater, 300 W by fluval - **How much does it cost?** $U6692 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.uy](https://www.desertcart.uy/products/48157804-fluval-e-advanced-electronic-heater-300-w) ## Best For - fluval enthusiasts ## Why This Product - Trusted fluval brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Fish-Safe Design:** Integrated protective housing prevents direct contact with the heater core, keeping your aquatic pets safe and stress-free. - • **Sleek & User-Friendly:** Slim wall-mount design with easy 0.5°C incremental adjustments—no need to remove the heater for fine-tuning. - • **Precision Heating Power:** 300 watts of consistent warmth for aquariums up to 375L, ensuring your aquatic ecosystem thrives. - • **VueTech Real-Time Display:** Dynamic LCD screen changes color with temperature shifts, giving you instant visual alerts to maintain perfect conditions. - • **Advanced Dual-Sensor Microprocessor:** Smart temperature control with double sensors for ultra-accurate readings and automatic adjustments. ## Overview The Fluval E Advanced Electronic Heater delivers 300 watts of precise heating power for aquariums up to 375 liters. Featuring innovative VueTech technology, its LCD display continuously shows real-time water temperature and changes color to alert you of any deviations. Equipped with a dual-sensor microprocessor, it ensures ultra-accurate temperature control with easy 0.5°C adjustments. Designed with integrated fish protection and a sleek wall-mount, this heater combines safety, style, and smart technology for both freshwater and saltwater tanks. ## Description From the manufacturer Fluval electric heater aquarium heater Probably the most technologically advanced submersible aquarium heater of our day with VueTech technology. Its LCD display gives a soothing feeling thanks to its continuous real-time water temperature display. The temperature display changes colour when the water temperature deviates from the preset temperature. Should external heat sources or other facilities cause an excessive rise or drop in aquarium water temperature, the coloured screen will start flashing to indicate a potential risk. VueTech Technology Thanks to the LCD temperature display, the current temperature of the aquarium water is displayed at all times. It changes colour when the temperature of the aquarium water deviates by 1°C or 2°F from the preset temperature. If the temperature of the water rises or drops by 3°C or 5.5°F, the colourful indicator flashes to indicate a potential danger. Microprocessor, precise temperature setting, heater mount with slim design and advanced safety The microprocessor technology with double temperature sensors ensures accurate real-time measurement of water temperature. With the lever, it can be precisely adjusted in 0.5° increments. No need to remove the holder. Thanks to the integrated fish protection, the animals cannot come into direct contact with the heater core and the glass cover is protected from impacts. VueTech technology (display changes colour when temperature changes) Precise and easy temperature adjustment Advanced Security mounts Digital microprocessor Suitable for freshwater and saltwater aquariums Temperature status display Blue The aquarium temperature is too low. The heating function automatically sets in and increases the temperature. Green The aquarium temperature is in the desired range and the control function sets in. Red The aquarium temperature is too high and the control function sets in. Lower the temperature gradually. E 50 aquarium heater, up to 60 litres Dimensions: 25 x 4.9 x 3 cm E 100 aquarium heater, up to 120 litres Dimensions: 30 x 4.9 x 3 cm E 200 aquarium heater, up to 250 litres Dimensions: 35 x 4.9 x 3 cm E 300 aquarium heater, up to 375 litres Find the right heater for your aquarium Review: 6-years in & still excellent 👌🏼 - I bought this Fluval E300 aquarium heater for my 4ft turtle tank. 6-years down the line & I'm still impressed. Came with a UK-plug. Mounted at 45° as suggested & made sure to always keep fully submerged. Never an issue with it. The built in housing makes it safe for my turtle to clamber over too & doesn’t need fully dismantling to clean like my previous guarded ones did. Excellent value & accurate enough 🙂 Review: Excellent - Excellent ## Features - High-quality material - Good quality - A variety of products for pets ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B001VMSK0I | | Best Sellers Rank | 13,931 in Pet Supplies ( See Top 100 in Pet Supplies ) 26 in Aquarium Heaters | | Brand | Fluval | | Capacity | 375 litres | | Colour | Multicolour | | Customer Reviews | 4.1 out of 5 stars 1,364 Reviews | | Global Trade Identification Number | 00015561107747 | | Heat Output | 300 Watts | | Is Electric | Yes | | Item Weight | 0.37 Kilograms | | Material | Plastic | | Maximum Temperature | 93 Degrees Fahrenheit | | Model Number | A774 | | Mount Type | Wall | | Number of Items | 1 | | Part Number | A774 | | Power source | Corded Electric | | Special Features | Dual-sensor VueTech Microprocessor Technology | | Special feature | Dual-sensor VueTech Microprocessor Technology | | Style | Modern | | UPC | 015561107747 015561014168 | | Unit Count | 1 Stück | | Voltage | 230 Volts | | Wattage | 300 watts | ## Product Details - **Brand:** Fluval - **Colour:** Multicolour - **Power source:** Corded Electric - **Special feature:** Durable, Easy to use, Heating function - **Wattage:** 300 watts ## Images ![Fluval E Advanced Electronic Heater, 300 W - Image 1](https://m.media-amazon.com/images/I/61AOPqZZuxL.jpg) ![Fluval E Advanced Electronic Heater, 300 W - Image 2](https://m.media-amazon.com/images/I/71wPfYL5F-L.jpg) ![Fluval E Advanced Electronic Heater, 300 W - Image 3](https://m.media-amazon.com/images/I/71NA62rvrcL.jpg) ![Fluval E Advanced Electronic Heater, 300 W - Image 4](https://m.media-amazon.com/images/I/71pnQbT6b9L.jpg) ![Fluval E Advanced Electronic Heater, 300 W - Image 5](https://m.media-amazon.com/images/I/71d0RPJbFbL.jpg) ## Available Options This product comes in different **Pattern, Style** options. ## Questions & Answers **Q: Is the plug a 3 pin or a 2 pin?** A: Just received my 200W heater with a 2 pin plug. This despite assurances elsewhere in the Q & A lists that all British orders are fulfilled using 3 pin plugs. Amazon, the great misinformation site. Will they replace it with a 3 pin? Should I hold my breath? **Q: is the 100watt suitable for 140 litre aquarium?** A: No it isnt, same as other responder says, too low powered for a tank that size, need the 150W, just make sure you have a steady flow of water over the heater, like from a filter outlet, to circulate the water evenly around the tank otherwise it wont work efficiently, and should be ok **Q: It says an e300 is for tanks up to 375l tanks. has anybody had any experience of this? as i'm looking to put the heater into a 364l tank.** A: My tank is only 245l but I have found this heater to be the best I've ever bought and it will do what it advertises, the only thing I found was it has to have very good flow next to it. Suzy. **Q: Is it normal for blue light to be on at night time** A: no it's not normal for the light to be blue at night blue means the water is too cold green means of water is the right temperature and red means the water is too hot, ideally your temperature should be around 25 degrees that should put it in the green if it's blue on an evening you need to turn your temperature up one degree or whatever it takes to get it within the correct range it should automatically do this if it's not you may have a faulty unit or the tank is to big for the heater ## Customer Reviews ### ⭐⭐⭐⭐⭐ 6-years in & still excellent 👌🏼 *by J***B on 1 June 2026* I bought this Fluval E300 aquarium heater for my 4ft turtle tank. 6-years down the line & I'm still impressed. Came with a UK-plug. Mounted at 45° as suggested & made sure to always keep fully submerged. Never an issue with it. The built in housing makes it safe for my turtle to clamber over too & doesn’t need fully dismantling to clean like my previous guarded ones did. Excellent value & accurate enough 🙂 ### ⭐⭐⭐⭐⭐ Excellent *by P***N on 27 July 2026* Excellent ### ⭐ Fluval Heater does not meet expectations *by K***N on 15 October 2014* In my view the heater is over engineered (Red/Blue/Green Display/Flashing Displays/ Low Flow Warnings etc..On the face of it these features would appear to be good ideas, however from the user's perspective, my experience was that for several hours it worked appropriately, however for no apparent reason I then started getting a "Low Flow" warning. I moved an artificial plant away from the heater and this worked for a while before the "LF" warning returned. Based on other negative reviews I tilted the heater to a 45 degree angle with negative result and on returning it to the vertical position the "LF" symbol disappeared. The next morning despite the heater being set at a temperature of25 degrees, I found the heater was showing only 24 degrees and the display was blue in colour. An independent thermometer showed a reading of only 23.4 degrees and no matter what I did with the Fluval Heater in terms of angle/position/Increasing temperature etc., the display remained blue and the temperature never increased. Suffice to say, the well being of my stock took priority and I returned the heater to Amazon 24 hours later. I have now reviewed various websites and it is apparent that numerous people have had similar experiences with this product and this is clearly an issue Fluval requires to address, particularly given the fact that this heater is at the upper end of the price spectrum and that Fish Keepers cannot afford to gamble with their stock. ## Frequently Bought Together - Fluval E 300 Watt Electronic Heater - PAIZOO Fish Tank Digital Thermometer Accurate LED Display to ±0.9°F Tank Thermometer Aquarium Temperature Measurement Suitable for Fish, Axolotl, Turtle or Aquatic - API FRESHWATER MASTER TEST KIT 800-Test Freshwater Aquarium Water Master Test Kit, White, Single, Multi-colored --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.uy/products/48157804-fluval-e-advanced-electronic-heater-300-w](https://www.desertcart.uy/products/48157804-fluval-e-advanced-electronic-heater-300-w) --- *Product available on Desertcart Uruguay* *Store origin: UY* *Last updated: 2026-08-24*