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  • Features and benefits
  • Specifications
  • Literature
  • CAD
  • Energy labelling
Features Benefits
Supplied with fittings pack – including draught diverter, gas cock and water drain Easy installation and ready to go, straight out of the box
Low NOX, 27.6mg Future proofed to the next level of ErP
LCD controls Easy control and fault diagnostics
Improved gross thermal efficiency More efficient use of fuel and lower running costs
Auto ignition as standard More efficient use of fuel saving energy and costs
Hydrojet® sediment reduction system Longer and more efficient working life
Natural gas or LPG Available for off mains gas areas
Features
Supplied with fittings pack – including draught diverter, gas cock and water drain
Low NOX, 27.6mg
LCD controls
Improved gross thermal efficiency
Auto ignition as standard
Hydrojet® sediment reduction system
Natural gas or LPG
Benefits
Easy installation and ready to go, straight out of the box
Future proofed to the next level of ErP
Easy control and fault diagnostics
More efficient use of fuel and lower running costs
More efficient use of fuel saving energy and costs
Longer and more efficient working life
Available for off mains gas areas

View product specification

When clicked this will open the product specification in PDF format.


Model


20/190


7681595
Energy  
Heat input (gross) kW 21.1
Heat output (gross)
kW 19
Gross thermal efficiency % 91
ErP 
NOx emissions (0% 02) mg/kWh 27
ErP efficiency rating    A
Noise level dBA 49.3
Gas data  
Gas flow rate (natural gas) m3/h 1.5
Water  
Storage capacity Litre 189
Recovery rate at 50ºC rise Litre/hr 350
Recovery rate at 56ºC rise Litre/hr 297
Operating pressure (unvented) bar 3.5
Minimum working pressure at 10.3bar
bar 1
Maximum working pressure bar 10.3
Electrical  
Fuse rating amp 5
Electrical power consumption max/min W 300
Electrical requirements V
230
Misc.  
Weight full kg 305
Weight empty kg 124
Maximum outlet temperature
ºC 80
Connection sizes
 
Inlet/outlet connections
BSP 3/4
Return connection
BSP 3/4
Gas connection (gas cock supplied)
BSP 1/2
Height of heater
mm 1429
Height to vent connection
mm 1710
Diameter
mm  610
Service clearance  
Front mm 600
Sides mm 300
Above mm 450
Shipping  
Shipping width
mm 778
Shipping depth
mm 699
Shipping height
mm 1890
Shipping weight
kg 135
Accessories  
Horizontal flue kit
  7697176
Vertical flue kit
  7697174
1m cuttable Flue Length
  7697185
Adjustable Flue Length 160mm - 210 mm
  7697186
0.5 metre flue
  7697184
90º bend
  7697182
45º bend
  7697183
Wall terminal guard
  7697179
Horizontal terminal
  7697181
Weather slate angled 25º - 45º
  7697177
Weather slate flat
  7697178
Air cover for wall & roof terminal
  7697187
Unvented system kit
  7703928
Correx powered anode kit
  7705307
Remote enable kit
  7697190
LPG Conversion kit   7722656

Download CAD files for this product using the links below. To access CAD files you will need the correct software installed to allow you to open .dwg files such as AutoCAD.

The Energy Related Products Directive (ErP) has applied to all domestic and commercial heating and hot water products through Europe since September 2015.

From 26th September 2018 any water heater sold must have an efficiency/NOx output rating of C or above. In line with the new ErP legislation, we have upgraded our product range so they are all ErP compliant before the September deadline. Read more about the new product range, and legislation changes here.

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