made in the uk Stelrad
Imax boiler

Imax W

Heat Only

Especially designed for the larger domestic or smaller commercial property, the Ideal Imax W combines ultimate performance with reliability; all from a single compact wall hung appliance.

Available in a range of outputs, the Ideal Imax W can be installed as a single unit or in simple modular formations for even bigger outputs.

The fully modulating design ensures that maximum efficiency is maintained down to very low loads. Available with a wide variety of fluing options, the Ideal Imax is straightforward to install and easy to service.

Complete with a parts and labour warranty as standard, and with additional extended warranty options available, the Ideal Imax W offers the ultimate in performance for the larger property.

Imax boiler
1 year warranty Compact cupboard fit Digital display Frost protection Flue variants NOx class 5
1 year warranty as standard.
Compact fit for convenience.
Clear digital display for plain and simple logistics.
Frost protection, so your boiler will run in harsh weather.
A range of flue options to suit your home.
Low NOx levels means low emissions.

Features & Benefits at a glance

  • Compact, wall hung
  • Perfect for the larger property
  • Flue supplied as standard
  • Available in a wide range of fluing options
  • Parts and labour warranty
  • Extended warranty options available
  • Performance range of large domestic/small commercial boilers
Technical Specification: Imax W
  • Size & Performance
  • Construction & Installation
  • Clearances & User Interface
  • Pipes & Flues
W45W45PW60W60PW80W80PW100
Casing dimensions (h w d) mm 
Height900900
Width540650
Depth500500
Weight (packed kg) 
Maximum Installation Weight (kg)87878888100
  
CH output (kW) Min/Max @ 70C12.6/43.712.6/58.919.5/78.223.1/95.9
CH output (kW) Min/Max @ 40C13.9 - 46.913.7 - 45.913.9 - 62.313.6 - 60.621.3 - 82.720.7 - 8026.1 - 103.1
DHW output (kW) MaxN/AN/AN/AN/AN/AN/AN/A
DHW flow rate l/min. 35°C riseN/AN/AN/AN/AN/AN/AN/A
SEDBUK ratingBand A
SEDBUK %90.0%90.0%91.30%90.40%N/A
NOx ClassificationClass 5
Adjustable to LPGN/A
 W45W45PW60W60PW80W80PW100
Heat exchanger materialCast Aluminium - Silicon alloyCast Aluminium - Silicon alloy
Burner typeGauze Plaque
Fully modulatingYesYes
DHW plate heat exchangerN/AN/A
Integrated hydroblockN/AN/A
  
Suitable for sealed systemsYesYes
Suitable for open-vent systemsYesYes
Filling loopNoNo
Pre-wired mains leadNoNo
Flow regulatorN/AN/A
Inbuilt system bypassNoNo
Inbuilt condensate trap/siphonExternal includedExternal included
Inbuilt boiler frost protectionYesYes
Zero compartment ventilationYes (ventilation dependent on flue system used and location)No
 W45W45PW60W60PW80W80PW100
Top (mm)
(from top of boiler)		200 - 350 dependent on flue system used 3200 - 365 dependent on flue system used
Side (mm)5050
Bottom (mm)300300
Front (mm)450450
  
User displayAlpha NumericAlpha Numeric
User interfaceYesYes
DiagnosticsYesYes
User adjustableYesYes
‘Eco’ setting on CHN/AN/A
Inbuilt ProgrammerNoNo

3 80/125 concentric, vertical 200mm, horizontal 350mm (410mm for 100/150)

 W45W45PW60W60PW80W80PW100
Pre-piping kitYes - as part of multiple boiler frame & header kit
Stand-off kitNo (a floor standing boiler frame kit may be offered as an alternative)
Upward piping kitNoNo
  
Max horizontal31.6 (100/150)
9.5 (80/125)		26 (100/150)
7.8 (80/125)		16 (100/150)11 (100/150)
Max vertical31.6 (100/150)
9.6 (80/125)		26 (100/150)
7.8 (80/125)		16 (100/150)13 (100/150)
Powered VerticalOpen flue kit 80 20mOpen flue kit 80 13.3mOpen flue kit 100 29mOpen flue kit 100 13m