Instanta WMSP3W 3 Ltr Wall Mounted Water product image
Instanta WMSP3W Wall Mounted Water Boiler - Advantage Catering Equipment
Instanta WMSP3W Wall Mounted Water Boiler - Advantage Catering Equipment
Instanta WMSP3W Wall Mounted Water Boiler - Advantage Catering Equipment

Instanta

Instanta WMSP3W (WM3) 3 Litre Wall Mounted Auto-Fill Water Boiler

SKU: WMSP3W
Barcode: 0791689617374

£633.00(£759.60 inc VAT)
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  • In the event of equipment failure any parts needed will be provided 2
  • In the event of equipment failure an engineer will be sent for an onsite repair 2
  • Equipment may be supplied with a moulded plug but may be more suitably connected to a fused spur
  • Equipment that should be connected to a suitably rated outlet - must be installed by a competent person
  • This product is Made in Britain

The Instanta WMSP3W, commonly referred to as the WM3, is a compact auto-fill water boiler designed to mount directly to the wall, keeping the worktop entirely clear beneath it. It connects to the mains cold water supply and refills automatically throughout the day, so staff do not need to monitor water levels or interrupt service to top it up manually. A built-in 7-day programmable timer allows operators to schedule heating cycles around their actual opening hours, which helps avoid unnecessary energy use outside of service periods.

In day-to-day operation the WM3 is a reliable, low-maintenance unit for settings where demand is modest and consistent. It is not designed to sustain continuous high-volume output at a busy main counter, but for its intended use — staff rooms, small cafés, hotel beverage points, secondary service stations, and similar lower-throughput environments — it performs well without requiring much attention from staff.

  • Wall-mounted design keeps counter surfaces completely clear during service
  • Auto-fill connection removes the need for manual refilling throughout the day
  • Programmable timer aligns energy use with actual service hours
  • Filter change indicator prompts maintenance before water quality is affected
  • Onboard diagnostics help identify issues early, before they disrupt service

Installation requires a mains cold water connection and an appropriate power supply. A hardwired connection is generally preferred for permanent commercial installations rather than a standard 13A socket, and this should be confirmed with a qualified electrician before fitting. The wall fixing point needs to be structurally sound and should allow reasonable access for routine servicing. Local water hardness is worth factoring into your maintenance plan, as it will influence filter change frequency and descaling requirements over time.

The WM3 is well suited to lower-volume sites — small cafés, office kitchens, hotel beverage stations, staff canteens, and similar settings. For higher-volume operations or a main service counter with continuous demand, a larger-capacity unit would be a more appropriate choice.

If you are unsure whether this model fits your setup or want to talk through the installation requirements, the team is happy to help you work it out before you commit.

Frequently asked questions

Is the WM3 suitable for a busy café main service counter?

The WM3 is designed for lower-volume demand — staff rooms, small cafés, hotel beverage points, and secondary service stations rather than high-throughput main counters. If your site serves a high volume of hot drinks continuously throughout the day, a larger-capacity unit would be a more practical choice. We can help you assess which capacity is appropriate for your service pattern.

Does the WM3 need a hardwired electrical connection?

A hardwired connection is generally recommended for permanent commercial installations to ensure a reliable and safe supply, though the unit can in some circumstances be connected via a 13A socket. We would always advise confirming the final installation method with a qualified electrician before fitting, particularly where the unit will be in continuous daily use.

How does local water hardness affect the WM3 in use?

In hard water areas, scale builds up more quickly inside the boiler, which can affect heating efficiency and water quality over time. The built-in filter change indicator helps prompt maintenance at the right intervals, but operators in hard water regions should expect to descale and change filters more frequently than those in softer water areas. Factoring this into your routine maintenance schedule will help keep the unit running reliably.
Instanta WMSP3W (WM3) 3 Litre Wall Mounted Auto-Fill Water Boiler

£633.00(£759.60 inc VAT)

£633.00(£759.60 inc VAT)

The Instanta WMSP3W, commonly referred to as the WM3, is a compact auto-fill water boiler designed to mount directly to the wall, keeping the worktop entirely clear beneath it. It connects to the mains cold water supply and refills automatically throughout the day, so staff do not need to monitor water levels or interrupt service to top it up manually. A built-in 7-day programmable timer allows operators to schedule heating cycles around their actual opening hours, which helps avoid unnecessary energy use outside of service periods.

In day-to-day operation the WM3 is a reliable, low-maintenance unit for settings where demand is modest and consistent. It is not designed to sustain continuous high-volume output at a busy main counter, but for its intended use — staff rooms, small cafés, hotel beverage points, secondary service stations, and similar lower-throughput environments — it performs well without requiring much attention from staff.

  • Wall-mounted design keeps counter surfaces completely clear during service
  • Auto-fill connection removes the need for manual refilling throughout the day
  • Programmable timer aligns energy use with actual service hours
  • Filter change indicator prompts maintenance before water quality is affected
  • Onboard diagnostics help identify issues early, before they disrupt service

Installation requires a mains cold water connection and an appropriate power supply. A hardwired connection is generally preferred for permanent commercial installations rather than a standard 13A socket, and this should be confirmed with a qualified electrician before fitting. The wall fixing point needs to be structurally sound and should allow reasonable access for routine servicing. Local water hardness is worth factoring into your maintenance plan, as it will influence filter change frequency and descaling requirements over time.

The WM3 is well suited to lower-volume sites — small cafés, office kitchens, hotel beverage stations, staff canteens, and similar settings. For higher-volume operations or a main service counter with continuous demand, a larger-capacity unit would be a more appropriate choice.

If you are unsure whether this model fits your setup or want to talk through the installation requirements, the team is happy to help you work it out before you commit.