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Old 12-22-2008, 04:08 AM
Archena's Avatar
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Default Range Hood Wrangle

Hi,

Okay, yet another in a long list of idiotic questions from yours truly. I've lived in the old houses most of my life, and have only rarely had range hoods. I know how to use them, but I'm not sure how exactly they're supposed to work.

Here's the problem: with the fan off cold air is coming back down through the hood. Is there supposed to be a damper or something? It's a really big problem on cold nights. As energy efficiency crazed as home-improvement stuff has been over the last few years you'd think somebody would have mentioned it if this were common problem. There has to be some way to keep it from happening, but I have no idea what it is.

Help.
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Old 12-22-2008, 04:29 AM
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Thumbs up Re: Range Hood Wrangle

Easy solution to your problem!
Contact the manufacturer for:-
ē a satisfactory explanation of your problem, and/or
ē a spare parts diagram.
There are many makes and models from a range of manufacturers.

Neill
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Old 12-22-2008, 05:24 AM
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Default Re: Range Hood Wrangle

Thanks. I checked it out and the damper is sold separately. It doesn't look like one was ever installed. Looks like this goes on the list of things for my landlord to deal with once I move out...


(Which is not a dig against my landlord. They were kind enough to rent the house to me when I needed it desperately even though was not yet ready for rental. Just to be helpful I'm putting together a list of all the little stuff that you notice when you live in a house but not might not notice when you're not living in it. But as busy as they are right now this isn't going to be repaired anytime soon.).

Sigh. Duct tape, anyone?
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Old 12-22-2008, 08:47 AM
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Default Re: Range Hood Wrangle

Most range hoods have a spring actuated flap on the outside, under the cowell that keeps the rain out. Sometimes cooking crud causes this flap to get stuck open. Do you have access to the exterior of the vent?
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Old 12-22-2008, 08:57 AM
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Default Re: Range Hood Wrangle

humm, my 1952 home just has one big hole - of course it never rains in southern california
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Old 12-22-2008, 01:35 PM
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Archena
Like most things, there are always other options, most relying on the owner/occupier to remedy.

Quote:
Looks like this goes on the list of things for my landlord to deal with
You could always acquire either a shielded hood or one that is swivelled and always points away from the wind direction.
Another option is to build a baffle within the exiting flue. This should be pivoted off centre so that it will automatically close when the fan forced draft is not keeping it open but closes automatically when the unit is turned off.
You would then need your metal working skills or you may be able to use a correct diameter tin can, punch 2 holes carefully and accurately through it for the shaft, cut a circular baffle and screw it off centre onto the shaft and then duck tape it into the flue. You really do need to work on those metal working skills (or lack of).

Neill
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Old 12-22-2008, 02:13 PM
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Default Re: Range Hood Wrangle

There are several options of flappers/baffles available for the different types of ductwork. The last one I purchased was for a soffit/wall mount for use with a bath fan or clothes dryer. The flex pipe I used screwed into the mounting flange (which was white plastic - matching my white soffits), has a weighted plastic one way flapper that stays closed unless air is flowing through the pipe...is actually quite sensitive and opens very easily even with the fan on low - but never opens from wind. I am surprised that it actually works so well...I bought it online (sorry I don't remember where, it was a ductwork/vent/fan e-tailer) for about $10.

RT
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Old 12-24-2008, 05:23 AM
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Default Re: Range Hood Wrangle

Dmun: No, Ďfraid not. Anything involving going higher than the third step of the ladder isnít going to happen. Even if I werenít scared of heights, I donít have anyone else around. And my daddy pounded into my head, you donít get a ladder if thereís no one else around.

Neill: I canít do repairs that involve getting on top of a house. And youíre just evil bringing up the metalwork thingÖ

RT: Iíd have to find one that I could install from the interior. Couldnít hurt to ask the guys at Loweís, I guess. Beats the cereal wrapper I have taped up there right now.

Thanks guys. Merry Christmas!
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