ICI Caldaie STELT Dual | Hevac
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ICI Caldaie STELT Dual

ICI Caldaie STELT Dual View Large Image

AISI 316 Ti stainless steel, dual stacked boilers, reverse flame condensing. STELT DUAL Boiler is able to produce hot water with a maximum temperature of 100 °C. To be fitted with pressure jet burner for gas fuel operation In compliance with directives 90 /396/CEE (gas) - CE 311/06 (efficiency) label, 89 /336/CEE (electromagnetic compatibility), 72/23/CEE (low voltage). 

  • inclined boiler body for condensate drainage support
  • Large cylindrical combustion chamber with reversed flame manufactured out of AISI 316 Ti stainless steel, TIG pulse welded, able to withstand acid condensate attack.
  • Stainless steel flue passage with special profiles, placed inside the combustion chamber in order to extend flue gas development and consequently increase heat exchange, or increase boiler efficiency (and obtain low NOx emissions in conjunction with Low NOx burners)
  • Heat exchange surfaces made from AISI 316 Ti stainless steel, welded with TIG method, consisting of stainless plates characterized by a particular corrugated shape being able to increase heat exchange surface, and facilitate droplet condensate formation allowing adequate drainage.
  • Welded using TIG, MIG and plasma procedures, methods that guarantee stainless steel main mechanical characteristics, without sacrificing corrosion resistance to acid condensation.
  • Flanged delivery connection and two system return connections for boiler differential input and ensure minimum possible temperature in lowest point of the condensation curve and then take maximum advantage from the condensation process even in the presence of medium-high temperature returns.
  • Smoke chamber able to collect resulted condensate and discharge it through a water trap connected to a neutralizer (where provided) to the domestic water drainage system.
  • Burner mounting plate, connectible to pressure jet burners with gaseous fuels use.
  • Heat dispersion surface insulation with thick glass wool mattress, protected with steel varnished panels that can be easily removed - front door with reversible steel sheet opening thermally insulated with ceramic fibre.
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