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Topic # 161983 26-Jan-2015 08:14
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I'm changing my DVS so intstead of sucking air from the very hot and dusty ceiling cavity it brings in fresh air. I'm hoping the motor in my cheap unit can pull at least a bit of air the extra 6m.

I'm looking for a 200mm grill to fit to my eaves and the 200mm ducting I've put in place. I can't use a converter because there's not the vertical space, the roof narrows in that area. Anyone know where to get one? Advance electrical might, but I'd prefer to avoid driving to Porirua or Lower Hutt (not that either are that far).

Update - Miter ten doesn't stock this size, their max is 150mm. I haven't checked other hardware stores, they often (though not always) stock exactly the same things.




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  Reply # 1222232 26-Jan-2015 08:29
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Bunnings has this sort of stuff



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  Reply # 1222233 26-Jan-2015 08:33
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Handle9: Bunnings has this sort of stuff


Miter ten doesn't - their largest is 150mm. I didn't check Bunnings though. Do you happen to know they have 200mm grills?




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  Reply # 1222242 26-Jan-2015 09:27
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If you like, I'll pop in to my local Bunnings today and check if they have 200 mm grilles. If they do, I'll note the price and the SKU number.




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  Reply # 1222244 26-Jan-2015 09:32
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Here?

http://www.smooth-air.co.nz/images/stories/products/pdfs/1434.pdf


 

Ventilation Grilles – MV Vs Series

 

Code Description dia (mm) RRP

 

VEMV250/200Vs Grille wall mount 250x250 200 $54.14

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  Reply # 1222245 26-Jan-2015 09:33
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Looks online like 150mm might be the largest they stock. They'd be able to order in for you though, or give your electrical wholesaler a call and get it shipped direct to you

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  Reply # 1222248 26-Jan-2015 09:37
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Oh also make sure you tell them you want a return air grill not a supply diffuser. It'll have less resistance and let your fan work better. It shouldn't have directional louvres, just a straight through egg crate pattern.



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  Reply # 1222250 26-Jan-2015 09:41
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This?

www.bunnings.co.nz/comfort-maker-fan-soffit-duct-kit-150mm-200mm-white_p00241566

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  Reply # 1222266 26-Jan-2015 10:26
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Thanks all. No need to check bunnings for me, but I appreciate the offer. I don't need a kit, just the vent. I'll check those two suppliers, thanks.




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  Reply # 1222267 26-Jan-2015 10:29
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ubernoob: Here?

http://www.smooth-air.co.nz/images/stories/products/pdfs/1434.pdf


Ventilation Grilles – MV Vs Series Code Description dia (mm) RRP VEMV250/200Vs Grille wall mount 250x250 200 $54.14


 

Close but no louvre required.




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  Reply # 1222284 26-Jan-2015 11:02
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Smartvent use louvered grills for the roofspace\ external intake vents on their ventilation systems but they use the eggcrate for the internal extraction intake (i've got a balanced pressure system).

http://www.simx.co.nz/ducting/air_diffusion/fixed_wall_ceiling_grilles.php
DCT0340 is the 200mm louvered, but they dont list the eggcrate.

I have a spare louvered one as I didnt use a vent on my roof cavity intake (but did use one on the external intake).




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  Reply # 1222289 26-Jan-2015 11:09
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Amosnz: Smartvent use louvered grills for the roofspace\ external intake vents on their ventilation systems but they use the eggcrate for the internal extraction intake (i've got a balanced pressure system).

http://www.simx.co.nz/ducting/air_diffusion/fixed_wall_ceiling_grilles.php
DCT0340 is the 200mm louvered, but they dont list the eggcrate.

I have a spare louvered one as I didnt use a vent on my roof cavity intake (but did use one on the external intake).


That's a louvre again. They seem pretty pointless given they'll always sit in one position. The only reason I need something other than a hole is to prevent bird going in - I don't want shredded bird dripping through vents into my house.




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  Reply # 1222295 26-Jan-2015 11:16
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Yeah I know its a louvered one, I'm just saying that's what Smarvent use on their exterior intakes.
Mine intakes off a gable end under the eave (not from the actual eave itself) so the louvre makes sense.

Also I removed the louvre panel, placed a sheet of square mesh over the opening and put the louvre panel back on, just for extra protection.




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  Reply # 1222297 26-Jan-2015 11:18
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Mine is best on the eave, just easier that way. I'll put mesh over it too, to prevent insects flying in. If it doesn't have enough power I can always put a booster in, and I might put an electric shutter on there so on winter nights I can shut it closed.




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  Reply # 1222307 26-Jan-2015 11:38
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Unfortunately advance don't sell 'em, only up to 150mm. I may have to use my smaller grill and an adapter thingy, which will reduce airflow and increase cost :( If I can find one no doubt it'll cost $50+ for a simple piece of molded plastic.




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