Stokvis boilers are hot on emissions

19 September, 2006

Stokvis Energy Systems has minimised emissions of NOx, CO and CO2 from its recently expanded Econoflame range of boilers by incorporating pre-mix burners, multiple-pass heat exchangers and the latest electronic controls. Combustion air is introduced by a variable-speed fan, controlled to meet the heating demand. Gas is modulated by a valve controlled by air pressure. All floor-standing models have bi-metallic burners tubes (stainless steel inside and aluminium outside). Water content is low for quick response, and an optional boiler-controlled pump is available. Floor-standing boilers can be dismantled and reassembled in situ. The five wall-hung boilers have outputs from 45 to 120 kW and modulate down to 14% of full output. These boilers have a noise output of less than 48 dB(A). Wall-hung boilers have flexible flue arrangements. The choice is from balanced flues, or corrosion-resistant single-wall flue pipe of plastic, aluminium or stainless steel. Flue dilution/assistance systems can also be used. All the wall-hung boilers are fully condensing — as are many of the floor-standing models. Econoflame boilers qualify for Enhanced Capital Allowances.

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