Free air space The chamber must be loaded to allow the designed air circulation through Stacking bagged commodities around the edges of a pallet can create a of air in the centre of the pallet through which air can freely the load. ‘column’ circulate. . Commodities must not obstruct air inlets or outlets when the chamber is fully loaded. Timber: there is no requirement for the spacers to be a specific horizontal distance apart. However, they should maintain a continuous gap along the The commodity must be loaded into the chamber with free air space around length of the timber. Individual units of product should be packed in such a way the commodity to allow for effective circulation of the hot air that maximum surface area of the product is exposed to the heated air, e.g. in layers with spacing sticks at least 20mm thick for air flow from side to side. Free airspace must exist under the commodity. The commodity must not be placed directly on the floor of the chamber. Over sized timber of any dimension can be treated effectively provided the heat Free airspace must exist between dense commodity components or units. treatment chamber is large enough to allow for circulation of air around the Bagged commodities packed on pallets must be stacked in such a way that timber. It can take days or weeks to reach the required core temperature. This is air can circulate freely at the centre of the pallet. dependant on the size and total volume of the timber. Warm-up time The delivery air temperature should be warmer than the targeted core The delivery air must be warmer than the targeted core temperature. temperature. Temperature readings must be recorded at a minimum of every 30 minutes, until the specified core temperature is reached and held at all measuring points in the chamber.
Free air space The chamber must be loaded to allow the designed air circulation through the load. Commodities must not obstruct air inlets or outlets when the chamber is fully loaded. The commodity must be loaded into the chamber with free air space around the commodity to allow for effective circulation of the hot air Free airspace must exist under the commodity. The commodity must not be placed directly on the floor of the chamber. Free airspace must exist between dense commodity components or units. Bagged commodities packed on pallets must be stacked in such a way that air can circulate freely at the centre of the pallet. Stacking bagged commodities around the edges of a pallet can create a ‘column’ of air in the centre of the pallet through which air can freely circulate. . Timber: there is no requirement for the spacers to be a specific horizontal distance apart. However, they should maintain a continuous gap along the length of the timber. Individual units of product should be packed in such a way that maximum surface area of the product is exposed to the heated air, e.g. in layers with spacing sticks at least 20mm thick for air flow from side to side. Over sized timber of any dimension can be treated effectively provided the heat treatment chamber is large enough to allow for circulation of air around the timber. It can take days or weeks to reach the required core temperature. This is dependant on the size and total volume of the timber. Warm-up time The delivery air must be warmer than the targeted core temperature. Temperature readings must be recorded at a minimum of every 30 minutes, until the specified core temperature is reached and held at all measuring points in the chamber. The delivery air temperature should be warmer than the targeted core temperature.