There are two types of hood: The models in evacuation (suction), in which the aspirated air is evacuated to the outside through a grease filter and an exhaust pipe; models to recycling (filter), in which the air intake air is filtered through a grease filter and an active carbon filter before being pumped back into the room. The first type is more effective, but the setup is more laborious. In fact, it is necessary to drill a drain hole in the wall. The intake will be less and less effective, as the hood is far from the hob or cooker.
If, however, is mounted too low, likely to catch fire, because the filter is impregnated quickly of fat particles very flammable. The minimum distance is acceptable from 60 to 70 cm. Caution: It is important that these works are carried out according to UNICIG 71 29, which provides for the intervention of a technician.
The hood is frequently screwed under a kitchen cabinet. If it is isolated, so that you do; orizzontale.Aiutatevi is fixed perfectly with a spirit level to draw a horizontal line, which would mark the holes to drill.To open the hole in the wall for the pipe, draw a circle of the same diameter of the wall fitting. With a 12 mm concrete drill bit, drill out the entire circumference of the circle of holes at a distance of 2 cm from each other .
Inside the circle, remove the first layer of plaster, until the uncovering of bricks. Engrave then the wall with a chisel and mallet. Drill some holes in the center of the circle and engrave the bricks in the shape of V. Proceeding in this way, only the small pieces will fall inside of any cavity of the wall. If the pieces were large, could later cause moisture problems. Then remove a little ‘time to the rest of the bricks. If you own it, a pneumatic hammer with chisel function will facilitate the work.
Insert the delivery tube into the hole and secure it with the PU foam or mortar. Then mount a gill plate outside: insert the cover piece in the hole and mark the position of the drill holes at the four corners. Fillet the grid to the tube by means of concentric rings. Attach the hose with possibly some small screw.Then screwed the shelf on the wall. Beware that the slats of the grille are in the right direction.Perfinire, connect the hood to the mains plug into a grounded outlet. You may have to assemble yourself a plug on the cable (see chapter 96 work on electricity). One last thing: attaching a hood to a chimney or a pre-existing drain pipe preesisente can be done only on condition that they are used, for example, to download the combustion gas of a water heater.
In fact, if the hood is not in use, the flue gases may enter the kitchen through the chimney, while if the hood was a function would be rejected by his fan inside the room where the water heater is located. It is not advisable to even connect the hood to the exhaust pipe of a dryer, for example, unless you like the smell of detergent for washing machines hovering in your kitchen and the smell of fried potatoes soak your laundry .
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