Insulation, Radiant and Vapor Barriers - Draft in Kitchen at Range Hood
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robbok3
12-16-08, 03:12 PM
First time poster here. Looking for help.
My range is on an exterior wall. There is a fairly stong draft, under the range hood right at the wall. There is a backdraft protector (if that is what it is called) over the vent on the exterior wall. Is there any other course of action that will help stop this draft. It is cold here in the Midwest. Any advice would be appreciated.
My range is on an exterior wall. There is a fairly stong draft, under the range hood right at the wall. There is a backdraft protector (if that is what it is called) over the vent on the exterior wall. Is there any other course of action that will help stop this draft. It is cold here in the Midwest. Any advice would be appreciated.
twelvepole
12-16-08, 10:40 PM
The pipe runs through the wall. Without tearing out wall to access pipe to insulate and seal joints, you will have cold air in the pipe. Poorly fitting damper can also allow cold air to seep in. Inspect damper to see if it is working properly. To stop cold air from coming in, check these flaps from time to time to make sure that they’re not clogged with grease and stuck in position. The exhaust hood (outside vent) has either flaps or louvers. Make sure they are free of obstructions. You can also inspect opening around fan housing and seal any gaps.
Backdrafting can also be a result of an appliance or fireplace using up air within the home. The poorly ventilated home will seek a source of air and pull it in through vents. It may be possible to make up for needed air by removing flapper in water heater or furnance vent and replace with hardware cloth.
Backdrafting can also be a result of an appliance or fireplace using up air within the home. The poorly ventilated home will seek a source of air and pull it in through vents. It may be possible to make up for needed air by removing flapper in water heater or furnance vent and replace with hardware cloth.
Bud9051
12-18-08, 07:50 PM
Hi robbok, Having it on an outside wall leaves lots of places where they might have left gaps or openings for those drafts.
First question, do you have a cabinet above the hood and a space above that or a built out box (soffit) that runs above all of the cabinets.
Does the vent duct run through the cabinet above or is it burried in the wall.
Is this a ranch or is there another level above the kitchen?
The hood itself may not be that difficult to remove, as it was installed almost last. That might allow you to determine if the cold air is comming back through the duct or around it. If you have a ranch, see if you can get to that outside wall from the attis. You may find a space above the cabinets that is open or just covered with insulation.
I'll look for your reply,
Bud
First question, do you have a cabinet above the hood and a space above that or a built out box (soffit) that runs above all of the cabinets.
Does the vent duct run through the cabinet above or is it burried in the wall.
Is this a ranch or is there another level above the kitchen?
The hood itself may not be that difficult to remove, as it was installed almost last. That might allow you to determine if the cold air is comming back through the duct or around it. If you have a ranch, see if you can get to that outside wall from the attis. You may find a space above the cabinets that is open or just covered with insulation.
I'll look for your reply,
Bud