--- product_id: 145317982 title: "Thermoflow Elex 24 Electric Tankless Water Heater,24kW at 240 Volts, Instant Hot Water Heater with Self-Modulating Temperature Technology for Whole House" brand: "thermoflow" price: "¥20370" currency: JPY in_stock: false reviews_count: 8 url: https://www.desertcart.jp/products/145317982-thermoflow-elex-24-electric-tankless-water-heater-24kw-at-240 store_origin: JP region: Japan --- # Thermoflow Elex 24 Electric Tankless Water Heater,24kW at 240 Volts, Instant Hot Water Heater with Self-Modulating Temperature Technology for Whole House **Brand:** thermoflow **Price:** ¥20370 **Availability:** ❌ Out of Stock ## Quick Answers - **What is this?** Thermoflow Elex 24 Electric Tankless Water Heater,24kW at 240 Volts, Instant Hot Water Heater with Self-Modulating Temperature Technology for Whole House by thermoflow - **How much does it cost?** ¥20370 with free shipping - **Is it available?** Currently out of stock - **Where can I buy it?** [www.desertcart.jp](https://www.desertcart.jp/products/145317982-thermoflow-elex-24-electric-tankless-water-heater-24kw-at-240) ## Best For - thermoflow enthusiasts ## Why This Product - Trusted thermoflow brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Description ## Technical Specifications | Specification | Value | |---------------|-------| | Manufacturer | thermoflow | | Item Weight | 11.22 pounds | | Product Dimensions | 18.6 x 10 x 4.5 inches | | Is Discontinued By Manufacturer | No | | Voltage | 240 Volts | | Wattage | 24000 watts | | Item Package Quantity | 1 | | Batteries Included? | No | | Batteries Required? | No | ## Product Details - **Brand:** thermoflow - **Wattage:** 24000 watts - **Voltage:** 240 Volts - **Manufacturer:** thermoflow - **UPC:** 698253589313 749882674991 630792536496 ## Images ![Thermoflow Elex 24 Electric Tankless Water Heater,24kW at 240 Volts, Instant Hot Water Heater with Self-Modulating Temperature Technology for Whole House - Image 1](https://m.media-amazon.com/images/I/51ym-oPZZHL.jpg) ![Thermoflow Elex 24 Electric Tankless Water Heater,24kW at 240 Volts, Instant Hot Water Heater with Self-Modulating Temperature Technology for Whole House - Image 2](https://m.media-amazon.com/images/I/61VMwaCTVqL.jpg) ![Thermoflow Elex 24 Electric Tankless Water Heater,24kW at 240 Volts, Instant Hot Water Heater with Self-Modulating Temperature Technology for Whole House - Image 3](https://m.media-amazon.com/images/I/81q8Euja5pL.jpg) ![Thermoflow Elex 24 Electric Tankless Water Heater,24kW at 240 Volts, Instant Hot Water Heater with Self-Modulating Temperature Technology for Whole House - Image 4](https://m.media-amazon.com/images/I/61rQA3t5NuL.jpg) ![Thermoflow Elex 24 Electric Tankless Water Heater,24kW at 240 Volts, Instant Hot Water Heater with Self-Modulating Temperature Technology for Whole House - Image 5](https://m.media-amazon.com/images/I/5198ThsvcYL.jpg) ## Questions & Answers **Q: Is the elex 24 enough for 1 washer, 1 shower, 1 bathroom sink, and 1 kitchen sink? can i use the hot and cold pipe from my old water heater?** A: Yes, this Elex 24 model is designed for whole house use, so it's enough for 1 washer, 1 shower, 1 bathroom sink, and 1 kitchen sink. But I don't recommend to use the hot and cold pipe from your old water heater, cause if the incoming water too hot, then the water heater will not get hot. **Q: Owner's manual** A: Thanks for your consultation. If you need owner's manual, please just contact us through your Amazon order or email, we will offer you the owner's manual in PDF version. Thanks. Inquiry & aftersales service: support@thermoflowus.com **Q: Is this an indoor unit only? Or can I install this outside?** A: This model is designed for indoor use, not designed for outdoors use. It could be installed in a weather protected enclosure where the temperature does not go below freezing, but we do not recommand to do that. **Q: What kind of warranty does it comes with?** A: 1 year warranty for the device. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Great buy, 3rd one I have bought, great customer service *by C***R on December 13, 2019* I use this to heat an indoor jacuzzi.. 400 gal.. never fails, heats so fast, since the inlet temperature is already around 90 deg, to heat to 104 takes around 40 min.. Must hook up electrical as mandated, do not use lower guage wires, 2 50 amp douple pole breakers, works very well. Highly recommend, especially value for the money. I had one of the 3 i bought develop a problem with the outlet temperature sensor, and within a week, they sent a replacement unit, would highly recommend. ### ⭐⭐⭐ only a 3 star and all i did was take it out of the box *by G*** on September 19, 2018* like i said its not going above a 3 just because the cold and hot water goes out the back and not the bottom. so i had to redo my wall to make it look good. but after playing with the temp and set it at 12 thats 158 degs. i have all the heat and pressure i need to take a shower.i just hope my light bill goes down. if it does i might come back and change it to a 4. ### ⭐ Read this and don't buy! *by D***S on January 19, 2019* Please read!! Ordered this unit, had professional electrician and plumber install. Power and water work, no hot water! No customer service number or contact info. Ended up doing a Google search. Got in touch (accidentally) with another company with same name. They had a number on file since they get so many calls on accident. Called the number and got a voicemail?? Worthless!! No return call either. Ended up exchanging through Amazon. New unit arrives, also dead on arrival!! Let's do the math on this!Unit: $300Electrical materials (converting from tank to tankless): $350Plumbing materials (converting from 3/4 to 1/2 pipe): $50Electrician (friend price): $250Plumber (also friend price): $100Total price: $1050Now imagine if they were not offering friend prices, and since I had to exchange the unit, they had to come out twice - technically 3 times before getting a unit that works! I ended up buying a unit from big box store costing $629. This unit, this company, this entire experience was absolutely horrible! Please trust that I do not wish anyone else to go through what I did - being without hot water for 5 days, heating water on the stove just to bathe! YOU WILL ABSOLUTELY REGRET BUYING THIS UNIT, OR ANY OTHER ONE FROM THERMOFLOW! If Amazon ever considered feedback of negative stars, this product would be the arguement for it. --- ## 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.jp/products/145317982-thermoflow-elex-24-electric-tankless-water-heater-24kw-at-240](https://www.desertcart.jp/products/145317982-thermoflow-elex-24-electric-tankless-water-heater-24kw-at-240) --- *Product available on Desertcart Japan* *Store origin: JP* *Last updated: 2026-10-23*