HEATING, VENTILATION & SERVICES 89
OPTIMISE LAYOUTS FOR WOODBURNER EFFICIENCY
When it comes to specifying woodburning stoves, the ‘eco-equation’ doesn’t stop at the appliance’s effi ciency rating, says Calvin May of HETAS. He explains how the layout of a room itself can be a game-changer, and delves into how to pair strategic appliance selection with optimal room placement
M
odern homes are designed to be energy-effi cient and are more air-tight than those of yesteryear resulting in less of the necessary ventilation being available for solid fuel burning. Despite this, a wood-burning stove can still be a viable heating option in new builds or redeveloped properties but only when specifying the right appliance for the space and then positioning it in the optimum place for effective heating.
CHOOSING AN APPLIANCE raditional or convector open fi res are not recommended in new build properties due to their low effi ciency and , respectively and impact this may have on the building’s overall energy effi ciency. Freestanding or inset room heaters using solid fuel, including wood pellets, are ideal for maximum effi ciency, with the added advantage of modern stoves producing around fewer emissions than an open fi replace.
s of anuary , the took
signifi cant steps to improve the sustainability and effi ciency of solid fuel appliances. nder the new codesign legislation, all new stoves and fi replaces must meet stricter effi ciency and emission limits, including those for particulate matter M, organic gaseous compounds , carbon monoxide , and nitrogen dioxide x
. codesign
rules complement existing air quality requirements for smoke control areas however with conditions being more stringent for particulates, it’s crucial to check with the relevant local authority or for any additional guidelines.
In line with ongoing government strategies to promote cleaner air and to better support consumer decisions in the purchase of environmentally responsible products, the leaner hoice pproval cheme’ offers a comprehensive register of those appliances meeting
THE POSITIONING OF A SOLID FUEL STOVE IN A ROOM IS CRUCIAL FOR OPTIMUM EFFICIENCY, SAFETY AND HEAT DISTRIBUTION
the most stringent performance limits for particulate emissions, with verifi ed improvements of over against the most robust requirements within the for particulates, and which appliances can be installed and operated within smoke control areas.
aving said that, do take advice from approved retailers and/or a registered heating engineer to make sure the appliance meets the necessary conditions required when burning the required fuel. ccurate siing is also critical when choosing a heating appliance. versiing to fi t a larger recess can lead to operating
the stove outside of the manufacturer’s prescribed guidelines, which increases the risks of incomplete combustion and fl ue blockages, as well as increasing the overall operational costs for the user.
ROOM PLACEMENT CONSIDERATIONS The positioning of a solid fuel stove in a room is crucial for optimum effi ciency, safety and heat distribution. The ideal location is, generally, centrally within the room or home, where it can radiate heat evenly across the space. lacing the stove against an interior wall can assist in retaining warmth, while positioning it too close to an exterior wall may result in heat loss particularly for restorations however this is less of a concern with new builds where modern wall cavities and insulation work hard to retain heat within the building.
t’s essential to consider the fl ue design a more straightforward, vertical fl ue is generally more optimal than a complex, angled one and will provide better fl ue draught to disperse products of combustion effectively. his makes
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