Experience endless hot water on demand with the UKEW Instaheat 11kW Tankless Instant Water Heater, a powerful and efficient solution designed for multi-point use in residential or commercial settings. Whether you need to supply hot water to a kitchen sink, bathroom basin, or even a shower, this high-performance unit delivers continuous hot water without the bulk or energy waste of a traditional storage tank. With its robust 11kW heating capacity, it rapidly heats water as it flows through the unit, ensuring a constant supply at the desired temperature for multiple outlets simultaneously. Its compact, wall-mountable design saves valuable space, making it ideal for flats, offices, small businesses, and holiday lets where every inch counts.

Engineered for both performance and safety, the Instaheat 11kW features advanced digital controls with a clear LED display, allowing you to monitor and adjust the water temperature precisely. Intelligent safety systems, including leakage protection, overheating protection, and a built-in pressure relief valve, provide complete peace of mind during operation. Designed for point-of-use installation, this unit connects directly to your cold water supply, heating water only when needed—eliminating standby heat loss and reducing energy bills. With its automatic memory function, your preferred temperature settings are retained, ensuring consistent comfort every time you turn on the tap.

Key Features

• Powerful 11kW Instant Heating: Delivers a continuous flow of hot water on demand—no waiting for a tank to reheat, ideal for busy households or light commercial use.

• Multi-Point Capability: Suitable for supplying one or two outlets simultaneously, such as a kitchen sink and nearby basin, or a single shower.

• Space-Saving Tankless Design: Compact unit (396 x 220 x 88mm) mounts neatly on the wall, freeing up floor space and eliminating the need for a bulky storage cylinder.

• Digital LED Display & Controls: Clear digital interface for easy monitoring and precise adjustment of water temperature to suit your preference.

• Comprehensive Safety Protection: Built-in leakage protection, overheat protection, thermal cut-out (95°C), and a pressure relief valve ensure safe, worry-free operation.

• Automatic Memory Function: Remembers your last temperature setting, so you don't need to readjust each time you use the heater.

• Easy Point-of-Use Installation: Connects directly to 1/2" copper pipework and requires a 50A circuit breaker with 6mm² cable (installation by a qualified electrician recommended).

• Efficient & Cost-Effective: Heats water only when needed, eliminating standby heat loss from storage tanks and potentially reducing energy consumption.

Technical Specifications

Frequently Asked Questions (FAQs)

1. What does "multi-point use" mean for this water heater?
Multi-point means the heater is designed to supply hot water to more than one outlet, though not necessarily simultaneously at full capacity. This 11kW model is suitable for one or two outlets (e.g., a kitchen tap and a basin, or a single shower). It will provide hot water to both, but using two outlets at once may slightly reduce the flow rate or temperature rise compared to using just one.

2. What electrical installation requirements are needed for this 11kW heater?
Due to its 11kW power rating, this unit requires a dedicated electrical circuit. It needs a 50 Amp double-pole isolating switch, a 50A circuit breaker (MCB), and must be wired with 6mm² cable (twin and earth or suitable flex). Installation must be carried out by a qualified electrician to ensure compliance with wiring regulations and safety.

3. How hot will the water get, and can I control the temperature?
The default working temperature is 50°C, which is typically suitable for general use. You can adjust the temperature using the digital controls. However, with instantaneous heaters, the outgoing temperature depends on both the incoming cold water temperature and the flow rate. In winter, when incoming water is colder, you may need to reduce the flow rate at the tap to achieve the same temperature as in summer.

4. What safety features does this heater have?
The Instaheat 11kW is equipped with multiple safety systems: leakage protection to prevent electrical hazards, overheating protection that cuts power if internal temperatures exceed safe limits (60°C), a thermal cut-out at 95°C, and a built-in pressure relief valve to manage excess water pressure. These features ensure safe and reliable operation.

5. Can this heater be used for a whole house or multiple bathrooms?
This 11kW model is best suited for point-of-use applications, such as supplying a kitchen and adjacent basin, or a single shower/bathroom. For a whole house with multiple bathrooms requiring simultaneous hot water, you would typically need a higher power rating (e.g., 27kW or more) or a different system type. This unit is ideal for flats, small commercial sinks, or as a booster for specific areas.