Keston Boilers

Tel: (+44) 020 8462 0262

Email: info@keston.co.uk

 
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This product has an energy rating (A)
on a scale of A to G.
For more information, see
www.boilers.org.uk.
This is a certification mark.
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KESTON qDUET RANGE

QUDOS 28s WITH qSPA WATER STORAGE 7 - 28KW, 120 - 210 LITRES – COMPLETE PREFABRICATED SYSTEM

The Keston qDuet is a harmonised blend of the Keston Qudos 28s modulating condensing boiler and the Keston unvented qSpa water storage cylinder with full controls.

Keeping in line with Keston's unswerving commitment to cost-efficiency, innovation and simplifying installation, the company pioneered the ultimate domestic heating system, the Keston qDuet. The appliance combines the Keston Qudos 28s modulating condensing boiler, the unvented Keston qSpa water storage cylinder with full controls in one compact ready-to-install unit, all contained in a pre-assembled, pre-plumbed and pre-wired floor-standing rig. The invented qSpa water storage cylinder in this rig is available in 120L, 150L and 210L volumes. Due to the high quality stainless steel construction of the Keston qSpa, no cylinder anode is required and the cylinder offers rapid heat recovery with dramatic savings through reduced boiler cycling.

SIMPLIFYING FOR THE INSTALLER

The Keston qDuet has all the cost and energy-saving benefits of condensing technology, combined with speedy and uncomplicated installation.

PREFABRICATED SYSTEMS – WHY?

In todays busy market the installation time for heating systems is being constantly squeezed. Whilst combination boiler solutions such as our C36 Combi provide an answer for smaller properties with less hot water demand, houses with multiple bathrooms need water storage to meet their needs.

The qDuet provides the answer whilst maintaining the ability to deliver rapid installation times and all within an extremely compact space. The units are pre-assembled at our factory and fully tested prior to shipment. The qDuet is to a high equipment specification and meets the demanding Chess HR2 recommended Best Practice system specification. Simply locates, add power and water and a room thermostat of the customer choice.

In addition, for multiple installations Keston is able to modify the design to provide a bespoke solution to meet any customer needs. This can involve additional equipment as well as alternative product combinations from the Keston range – contact Keston for more details.

 

Related technical information

FEATURES & BENEFITS

HEATING FEATURES

  • Qudos 28s “A” rated gas condensing system boiler
  • System filling loop
  • 8 litre heating expansion vessel
  • Automatic bypass valve
  • 3-bar sealed system safety valve
  • 22mm 2-port heating valve
  • Flow and return isolation valves

HOT WATER FEATURES

  • qSpa stainless steel unvented hot water cylinder
  • 22mm 2-port hot water valve
  • Potable water expansion vessel
  • Cylinder thermostat/overheat control
  • 3kW immersion heater
  • CWS pressure reducing valve set
  • CWS expansion relief valve
  • Potable discharge tundish

ELECTRICAL FEATURES

  • Wiring centre
  • 2 channel programmer
  • Switched fused spur
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KESTON Boilers Limited, 34 West Common Road, Hayes, Bromley, Kent BR2 7BX, United Kingdom, Telephone: 020 8462 0262 Fax: 020 8462 4459 General Information: info@keston.co.uk
Designed and built by PRG.