Is the 990 the world’s cleanest-burning cooker?

The 990, like all ESSE cookers, combines modern technology with classic ESSE quality and flies the flag for technological and environmental developments.

With three large capacity ovens (which can all maintain different temperatures for ease of use) the 990 offers a huge 112 litre cooking volume. It draws on classic ESSE styling from the 1930s, and blends vintage aesthetics with modern benefits.

The 990 can achieve heat outputs between 2kW and 8kW depending how it is operated and how much fuel is loaded. The stylish firebox features a secondary glass door enabling the flames to be admired while allowing extra heat into the room, and the large cast iron hotplate has different temperature zones for added flexibility.

The 990 heats quickly from cold, has a large log capacity and also incorporates stainless steel towel rail, perfectly weighted, insulated lids over the hotplate and easy-shut door handles. You can even use the 990’s firebox to grill directly over hot embers with cooking smells disappearing up the flue. The 990 is available with or without a hot water boiler and can also be specified as a solid fuel cooker.


  • Woodburning cooker (multifuel conversion available)
  • Oven capacity top 48 ltr
  • Oven capacity bottom 2 x 32 ltr
  • Hotplate over 6 pans
  • Suitable for continuous burning
  • Radiant heat output to room upto 5kW
  • Optional domestic hot water boiler
Available Colours
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990 dimensions
Model 990WN 990WD
Oven Capacity – Top 48ltr 48ltr
Oven Capacity – Bottom Ovens 2 x 32ltr 2 x 32ltr
Hotplate Over 6 pans Over 6 pans
Flue pipe diameter 6" (150mm) 6" (150mm)
Overnight burning (suitable for continuous burning) Yes Yes
Afterburn2™ technology Yes Yes
Mean boiler output inc DHW approx 6670Btu/h
Radient output to room (operating range) 3-5KW/h 3-5KW/h
Max efficiency % EN 12850 (wood) 74.8 77
Additional room vent required 1.75" Dia
Oven Dimensions – Top oven width 350mm, height 300mm, depth 460mm, Bottom ovens width 350mm, height 200mm, depth 460mm.
Clearances – Non-combustible material from sides 7mm (except when adjacent to Plus2); Combustible material from side 20mm; Combustible material from back 40mm. Weight – 404kg