94 HEATING, VENTILATION & SERVICES


heat source. Meanwhile fuel merchants are also able to offer ‘bio-logs’ made from coffee grounds, heather bracken and compressed wood waste from the forestry and timber industries. Come 2022, all wood burning stoves sold in the UK and Europe will meet a new Eco Design European Standard. Presently stoves sold in the UK are made to meet the European Standard EN13240. In the revision to the standard ‘European Efficiency and Emission requirements EN13240 and 13229,’ Eco Design 2022, all stoves will in due course meet the amended high standards with the aim of reducing emissions when burning wood. The key figures stove manufacturers are working to relate to the efficiency (above 75 per cent), emission of dust or particulate matter (below 40 mg/m3 (below 1500 mg/m3


), carbon monoxide ), NOx – the generic


term for nitrogen oxides (below 200 mg/m3


(below 120 mg/m3 The challenge we face is to


simultaneously meet both the efficiency and emission limits. As a direct consequence of reducing the particulate matter, carbon monoxide and hydrocarbons emissions


) – and hydrocarbons/organic gases ).


there is an increase in the emission of nitrogen oxides, while efficiency is adversely affected. Stoves presently available with efficiencies of around 80 per cent will become less efficient as a result of the Eco Design standard as efficiency drops from 80 per cent down to 75 per cent and nitrogen oxide emissions increase.


It can be argued that many of our everyday activities damage the environment in some way, as normal as driving a car or buying food packaged in plastic and transported around the world; there is no need for customers to feel guilty at keeping warm with a wood burning stove, which will continue to have a place in green, sustainable and eco conscious developments. Pre central heating, companies made stoves in sizes appropriate to the room which it was to heat, such that a single home might feature multiple stoves in the same way that radiators are specified. Today a stove can still provide a local heat source in a living area in conjunction with other heating systems, a reliable back up and a truly heart-warming, home making focus for the occupants.


Mark Blewitt is sales director at ESSE


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ADF SEPTEMBER 2018


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