Instanta CTS11F (1501F/G2) 11 Litre Auto-Fill Counter Top Water Boiler

The Instanta CTS11F is a mains-fed, auto-fill counter top water boiler designed to deliver a continuous supply of hot water throughout the service day. It connects directly to a cold mains supply, maintains water at a consistent serving temperature, and refills automatically — removing the need to monitor levels or wait for a manual-fill vessel to reheat. The integrated filtration system treats incoming water before it reaches the tank, making it an inherent part of the unit rather than a separate accessory.

In a commercial setting, this type of boiler suits operations where hot water demand is steady and consistent rather than extremely high-volume. A staffed café, a hotel breakfast servery, a workplace canteen, or a school kitchen will typically find this unit keeps pace comfortably through the day. The auto-fill function means service can continue without interruption, and the LCD fault diagnosis display helps staff or engineers identify any issues quickly without guesswork.

From an operational standpoint, the CTS11F offers several practical advantages worth noting:

• Auto-fill operation keeps the unit ready throughout service without manual intervention
• Integrated filtration reduces scale build-up and helps extend element life
• Incoloy heating elements offer proven longevity under regular commercial use
• Boil-dry protection guards the unit if the water supply is interrupted
• LCD fault display reduces diagnostic time and unnecessary engineer call-outs

Installation is notably straightforward. The unit runs from a standard 13-amp plug, so there is no requirement for a dedicated electrical circuit or rewiring — a genuine advantage in sites where electrical capacity is constrained or a quick setup is needed. You will need a nearby mains cold water connection for the auto-fill function to operate. Ensure the worktop is capable of supporting the unit at full capacity, and allow adequate clearance around the unit for ventilation and routine access.

This boiler is well suited to small and medium operations that need dependable hot water without the complexity or footprint of a larger commercial unit. It is commonly used in cafés, care homes, hotel serveries, school kitchens, and workplace catering facilities. For sites handling significantly higher volumes, or where simultaneous draw from multiple points is required, a higher-capacity unit may be worth considering.

If you would like to talk through whether this model is the right fit for your service pattern or water supply setup, we are glad to help before you commit to an order.