ATC Instanta Water Boilers

ATC Instanta Water Boilers with mirror polished stainless steel cover and stainless steel tank. Chrome catering style tap. Available in 2.5, 5 & 10.0 litres.


  • Boiling water for tea, coffee and cooking
  • Tank-baffle plates- unique design aids heat recovery and reduces steam emissions to atmosphere
  • Early warning lime-scale diagnostics (via LED light)
  • Dual safety protection with both over boil and boil dry protection
  • WRAS approval and CE Endorsed.
  • Warranty: 1 year parts


  • Heating Element: Embedded rod type with high level cut-out
  • Body Construction: 304 Grade Mirror Polished Stainless Steel
  • Boiling Chamber: 0.9mm 304 & 316 Grade Stainless Steel
  • Insulation: 9mm High Grade Insulation Panels
  • Thermostat: Electronic Temperature Probe (default setting 96ºC)
  • Tap: Two way, Chrome-plated Brass, Catering Style
  • Capacity: 2.5 litre, 5 litre and 10 litre
Product Code Capacity (litres) Delivery Cups* Rating Kw@230v  Dimensions (WxDxH)**
 INST2N 2.5 15 2.0 254 X 187 X 428 mm
 INST5N 5.0 30 3.0 290 x 205 x 432 mm
 IBST10N 10.0 60 3.0 340 x 247 x 480 mm

* 167ml Cup
** Including tap, tap protrudes 85mm from front of boiler



  • ATC Instanta Water Boilers must be installed by a suitably qualified contractor in accordance with the instructions supplied.


  • Should be installed over a draining board, or over a work top fitted with a drip tray — tap spout should be no higher than necessary to fill large pots. Minimum tap height above draining board for on-wall maintenance is 200mm.


  • Water inlet 3/4” BSP or 15mm push-fit, Overflow 15mm push-fit (extend if required: pipework to have a continuous fall (no longer than 500mm), no more than 3 right-angle bends.
  • Designed for connection to a potable cold water supply with a minimum pressure of 0.7 bar and a maximum pressure of 7 bar.
  • A pressure reducing valve to be fitted if pressure is greater than 7 bar.
  • An isolating valve should be installed between the mains supply and the heater.

Concealed Plumbing

  • Connect inlet and vent pipes from the rear.


  • To be wired to a double pole fused spur, minimum break rating of 13 amps.
  • Installation must comply with current IEE regulations.


  • In some hard water areas where scale is an issue we recommend the fitting of the Zip Inline filter.



ATC Instanta Wall Mounted Stainless Steel 2.5 Litre 15 cups*
ATC Instanta Wall Mounted Stainless Steel 5 Litre 30 cups*
ATC Instanta Wall Mounted Stainless Steel 10 Litre 60 cups*
* Standard Cup Size 167ml


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