--- product_id: 96606534 title: "ThermoMate ELEX5.5 Instantaneous Electric Water Heater with LED Display, 5.5kW Hand Wash Water Heater for Basins Sinks, Over/Under Sink Water Heaters, ‎Hard Wire 220V" brand: "thermomate" price: "€ 233.29" currency: EUR in_stock: true reviews_count: 11 category: "Thermomate" url: https://www.desertcart.pt/products/96606534-thermomate-elex5-5-instantaneous-electric-water-heater-with-led-display store_origin: PT region: Portugal --- # 5.5kW rapid heating power 3L/min precise flow control 35-55°C real-time LED temp display ThermoMate ELEX5.5 Instantaneous Electric Water Heater with LED Display, 5.5kW Hand Wash Water Heater for Basins Sinks, Over/Under Sink Water Heaters, ‎Hard Wire 220V **Brand:** thermomate **Price:** € 233.29 **Availability:** ✅ In Stock ## Summary > ⚡ Heat smarter, not harder — instant warmth at your fingertips! ## Quick Answers - **What is this?** ThermoMate ELEX5.5 Instantaneous Electric Water Heater with LED Display, 5.5kW Hand Wash Water Heater for Basins Sinks, Over/Under Sink Water Heaters, ‎Hard Wire 220V by thermomate - **How much does it cost?** € 233.29 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.pt](https://www.desertcart.pt/products/96606534-thermomate-elex5-5-instantaneous-electric-water-heater-with-led-display) ## Best For - thermomate enthusiasts ## Why This Product - Trusted thermomate brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Smart Flow & Leak Prevention:** Advanced tech ensures splash-free, drip-free water with adjustable flow tailored to your needs. - • **Durable Alloy Heating Element:** Corrosion and acid-resistant for a long-lasting, maintenance-free heating experience. - • **Energy-Efficient & Space-Savvy:** Compact 16.5x9.5cm design with A-rated efficiency fits perfectly in modern minimalist spaces. - • **Instant Hot Water in 2 Seconds:** Never wait—get on-demand warmth instantly and save up to 50% on heating costs. - • **Flexible & Intuitive Installation:** Auto-flip LED display and dual over/under sink mounting for seamless integration anywhere. ## Overview The ThermoMate ELEX5.5 is a compact, 5.5kW instantaneous electric water heater designed for hand basins and sinks. It delivers endless hot water within 2 seconds at a flow rate of up to 3L/min, featuring an LED display that shows real-time water temperature adjustable between 35-55°C. Its advanced flow control prevents leaks and splashes, while a corrosion-resistant alloy heating element ensures durability. Suitable for both over and under sink installation, it offers energy-efficient, on-demand heating with up to 50% savings on water heating costs. ## Description Shop ThermoMate ELEX5.5 Instantaneous Electric Water Heater with LED Display, 5.5kW Hand Wash Water Heater for Basins Sinks, Over/Under Sink Water Heaters, Hard Wire 220V. Free delivery on eligible orders of £20 or more. Review: Neat and compact - The unit works well and is beat and unibtrusive. I have it set to produce a temperature if 40°C at the handbasin. This is a comfortable temperature for my young grandchildren. The installation instructions were clear. The unit requires 4mm cable from the distribution box and a 32 Amp breaker and double pole switch for safety and isolation purposes. I am very pleased with it. Please note it is not designed to produce hot water for a shower but is great for a handbasin where a small amount of hot water is needed. Review: I wouldn't waste your time and money - So, it sounded like a good idea and simple fix for no hot water in the location of a new utility sink. Its 5.5kw so should be able to heat the water sufficiently considering the flow rate you get from other over sink hand instantaneous hand washers, that are around 3kw. To get the kind of heat you need from this, for example 40degrees, the water had to be dribbling out of the tap, so much so, the heater would then intermittently turn off as the flow was so little it though the tap was off... the air temp is around 10 degrees so nothing particularly low. It might be sufficient in the summer, but defo not the winter by any stretch. It will just have to be a storage tank which is slightly annoying as the sink is occasional use so will be a little wasteful for the time the water is being heated but not used. long story short. its not fit for purpose. ## Features - 【2S INSTANT HEATING & ENDLESS HOT WATER】- Turn on the water tap and endless hot water will come out within 2 seconds on demands when require, hence you will never run out of hot water and only pay for what you really use. Savings of up to 50% on water heating costs. - 【EXCLUSIVE ADVANCED FLOW CONTROL & WATER LEAKAGE PREVENTION】- Unique technology is applied to improve water flow and prevent any water from splashing or dripping. You can adjust the flow rate you want to meet your needs in any time. Maximum hot water flow rate: 3L/min - 【FLEXIBLE INSTALLATION】- When inverting the installation, the numbers automatically flip over. When the electric washbasin is in operation, the LED displays the current water temperature in real time, so you can easily get hot water at the desired temperature. The temperature range of 35 to 55°C can be selected by touch control. - 【EXCEPTIONALLY DURATION】- Built in high quality alloy bare heating element, it is corrosion-resistant and acid-resistant; flowing water prevents limescale from building up, which prolongs its service lifespan. - 【TWO INSTALLATION APPLICATIONS OPTIONAL】- Functional for both over sink and under sink installation, display will reverse automatically. Act as primary heater, with water being injected from cold mains directly; Act as booster heater, with hot water being injected from a storage tank. It is free to connect to a mixer tap.Water Inlet and outlet sizes G1/2‘’ ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B07GZP42KZ | | Best Sellers Rank | 85,541 in DIY & Tools ( See Top 100 in DIY & Tools ) 168 in Water Heaters & Parts | | Brand | thermomate | | Capacity | 5.5 litres | | Colour | White | | Country of Origin | China | | Customer Reviews | 3.4 3.4 out of 5 stars (91) | | Efficiency | A | | Flow Rate | 3 Litres Per Minute | | Heat Output | 5.5 Kilowatts | | Included Components | ThermoMate 5. | | Is Electric | Yes | | Item Dimensions W x H | 16.5W x 9.5H centimetres | | Item Weight | 1.3 Kilograms | | Manufacturer | thermomate | | Material | Alloy | | Maximum Pressure | 8 Bars | | Maximum Temperature | 55 Degrees Celsius | | Model Number | ELEX5.5 | | Mount Type | Wall | | Part Number | ELEX5.5 | | Power source | Corded Electric | | Special Features | Concealed automatic rotate digital temperature control display | | Style | 5.5kW Electric Handwash | | UPC | 698253589429 | | Voltage | 230 Volts | | Wattage | 5.5 KW | ## Product Details - **Brand:** thermomate - **Capacity:** 5.5 litres - **Power source:** Corded Electric - **Product dimensions:** 16.5W x 9.5H centimetres - **Special feature:** Concealed automatic rotate digital temperature control display ## Images ![ThermoMate ELEX5.5 Instantaneous Electric Water Heater with LED Display, 5.5kW Hand Wash Water Heater for Basins Sinks, Over/Under Sink Water Heaters, ‎Hard Wire 220V - Image 1](https://m.media-amazon.com/images/I/41YADuJ0RgL.jpg) ## Available Options This product comes in different **Size** options. ## Questions & Answers **Q: I recently purchased a thermomate elex5.5plus. It was installed by a qualified electrician. When the heater is on all the lights in the house flicker?** A: Check your neutral connections, especially at the consumer unit. **Q: Does the water heater require a special unvented mixer tap?** A: Hi, the 5.5kW electric water heater doesn't need a special tap. You can connect it to two outlets. Hope it helps. Thermomate **Q: My bathroom fitters have told me this requires a pull cord type switch. Is that corect or can it be installed on a 13amp switched fused socket?** A: as far as I know it does not require a pull cord. due to its rating I do not think it will work from a 13 amp socket. I had a higher rated cable run. it will need an isolation switch. **Q: by how many degrees will it raise the temp working as a booster heater? Also does it switch off once the water feed is over a certain temperature** A: Hi, when the outlet water flow rate is up to 3L/min, the temperature will raise by 20-25 degrees. The water heater will be switched off automatically once the temperature is up to 60℃. Hope it helps. thermomate ## Customer Reviews ### ⭐⭐⭐⭐⭐ Neat and compact *by G***A on 23 December 2024* The unit works well and is beat and unibtrusive. I have it set to produce a temperature if 40°C at the handbasin. This is a comfortable temperature for my young grandchildren. The installation instructions were clear. The unit requires 4mm cable from the distribution box and a 32 Amp breaker and double pole switch for safety and isolation purposes. I am very pleased with it. Please note it is not designed to produce hot water for a shower but is great for a handbasin where a small amount of hot water is needed. ### ⭐ I wouldn't waste your time and money *by S***R on 5 February 2021* So, it sounded like a good idea and simple fix for no hot water in the location of a new utility sink. Its 5.5kw so should be able to heat the water sufficiently considering the flow rate you get from other over sink hand instantaneous hand washers, that are around 3kw. To get the kind of heat you need from this, for example 40degrees, the water had to be dribbling out of the tap, so much so, the heater would then intermittently turn off as the flow was so little it though the tap was off... the air temp is around 10 degrees so nothing particularly low. It might be sufficient in the summer, but defo not the winter by any stretch. It will just have to be a storage tank which is slightly annoying as the sink is occasional use so will be a little wasteful for the time the water is being heated but not used. long story short. its not fit for purpose. ### ⭐⭐⭐⭐ Small to fit in any small unit but not powerful for mixed water *by B***N on 11 December 2024* Can't warm water more than 20 degree C on full open tap but with less pressure the temperature can raise to 25C but the made is quite impact and small, easy to install and looking nice for price. ## Frequently Bought Together - ThermoMate ELEX5.5 Instantaneous Electric Water Heater with LED Display, 5.5kW Hand Wash Water Heater for Basins Sinks, Over/Under Sink Water Heaters, ‎Hard Wire 220V - Bolatus Battery Isolator Switch 12V 24V 48V Battery Switch 275A Battery Kill Switch 1-2-Both-OFF Battery Cut Off Switch for Car Truck Boat Yacht Caravan Motorcycle - Blade ATC/ATO fuse blocks, ENDARK car fuse holder, 12 way fuse box with Negative Bus LED indicator for Car, Boat, Van, SUV --- ## 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.pt/products/96606534-thermomate-elex5-5-instantaneous-electric-water-heater-with-led-display](https://www.desertcart.pt/products/96606534-thermomate-elex5-5-instantaneous-electric-water-heater-with-led-display) --- *Product available on Desertcart Portugal* *Store origin: PT* *Last updated: 2026-04-22*