Power: 5500W. Fast Hot Water: Enjoy hot water in just 2 seconds without the need for preheating. The temperature range is from 30 to 55℃, providing clear visibility. Energy Saving: With a tankless water heater, you can save up to 60% on hot water costs by eliminating losses from distribution, startup, technical systems, circulation, and storage.
eBay
1pcs 12V DC Camper Water Heater - 10-30L New Design High Quality Storage Tank
Aliexpress UK
High efficient water heater with compact size, produce hot water quickly. Safe heater, electricity saving and water saving. Large water inlet temperature is low, small water inlet temperature is high.
eBay
220V Electric Ceramic Stove Tea Stove Electric Hot Plate Heater Stove 7 Gear Heating Furnace Smart Tea Maker Water Boiler 1300W
Aliexpress UK
【Fast Heating】 The electric instant hot water faucet adopts a 304 stainless steel heating core with a power of 3000W and a fast heating in 3 seconds. It has boil-dry protection, leakage protection and other functions to ensure safe use for you and your family.
eBay
Customized AC/DC 10-30 Liters Storage Electrico 220V 12v 48v 1000W Tank Electric Hot Water Heaters For RV/Camping
Aliexpress UK
6500W hot water heater, fast heating, high thermal efficiency, energy‑saving and eco‑friendly. Power: 6500W. Exquisite brass inlet and outlet are sturdy and durable to insure that the water source is not polluted again.
eBay
Zigbee Smart WiFi Water Heater Touch Switch, EU Standard, Voice Control, Countdown, Glass Panel, Voice Control
Aliexpress UK
Ariston under sink water heater, 2 kW 10 L in working order only removed for Shop refit.  Comes with expansion tank small under sink wall and also water pressure valve.
eBay
Solar Water Heater System - 150L Evacuated Tube Electric Backup for Home/Hotel Use, Compact & Energy Saving
Aliexpress UK
The Hyco Speedflow 15L Unvented Undersink Water Heater SF15K is a white storage tank water heater with a capacity of 75-150 litres. Manufactured in 2000 by the brand Hyco, this electric water heater operates at a power of less than 100W and has an energy efficiency rating of B this unit is designed for mounting under sinks and has a voltage of 240V. Its glass tank lining material ensures durability and reliability in providing hot water efficiently. Ideal for smaller households or as a secondary water heater, the Hyco Speedflow is a reliable and energy-efficient solution for heating water in a compact space.
eBay
300W 15 Liter 20L 30L DC 12 Voltage 12V 220V Caravan Boiler Tank Storage Electric Hot Water Heater for RV
Aliexpress UK
High efficient water heater with compact size, produce hot water quickly. Safe heater, electricity saving and water saving. Large water inlet temperature is low, small water inlet temperature is high.
eBay
LJXH 5" Inch (OD50.5mm) Tri-clamp Ripple Heating Element Electric Immersion Water Heater 4.5/5.5/6.5KW 240V
Aliexpress UK
Power: 3000W. If there is no heating, the display shows rotating, and no temperature is displayed, indicating that the water has not passed through the water heater, or the water pressure is too low, but if the water pressure is enough, the water does not heat, and it is still rotating, then check the water heater inlet The nozzle turbine, there may be dirt stuck in the turbine, causing the water heater to not start.
eBay
220v/380V Immersion Water Heating Element SUS304 Electrical Brewery Heater DN32 DN40 Resistance 2KW/3KW/3750W/4.5KW/6KW
Aliexpress UK