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Downdraft probl...
Rodents coming in downdraft vent into kitchen range
Downdraft probl...

We have a brand new home -- we've been in it only 2 months. Unfortunately, the builder installed a downdraft cooktop and it vents externally about 2 feet off the ground on the side of the house. The external vent has operable louvered flappers which field mice have learned how to scale the brick wall an nudge the flappers open and scurry into the kitchen via the cooktop. The cooktop is an Electrolux product with an 8" pipe. I have looked at the big box stores for some sort of critter guard and one vent specialty store and scoured the web and cannot find anything that will work. Screening inside the louvered flappers is not an option due to the size of the flappers and the internal mechanism.

We have 2 house cats who have taken to hunting the kitchen nightly, but even they cannot control the influx of field mice. We are in a new neighborhood south of Houston that was a giant cow pasture prairie.

I think downdraft ventilation is a horrible system and am tempted to rip it all out and put in a proper cooktop and overhead vent system --- we have owned several hoses and have NEVER had rodent issues. The builder indicates that the vent is installed according to code and this is just the problem of living at the edge of town!

dj1
Re: Rodents coming in downdraft vent into kitchen range
dj1

If the builder is no help, be a little creative.

A possible solution could be to install a screen, cut to size, inside the vent - to block off unwanted guests.

Jack
Re: Rodents coming in downdraft vent into kitchen range
Jack

Or perhaps a screen box over the outside big enough to allow the lovers to operate.

Jack

HoustonRemodeler
Re: Rodents coming in downdraft vent into kitchen range
HoustonRemodeler

I like the screened box over the outside, using 1/4" welded galvanized screening from most Farm & Garden stores such as American Fence & Supply on 45 in League City.

Mastercarpentry
Re: Rodents coming in downdraft vent into kitchen range
Mastercarpentry

Use the external screen box-anything done internally will void warranties and may violate fire codes as it could clog with grease unseen over time. While you're at it make and implement a total rodent control plan for the entire house; if they are that close already they will find other ways in unless you work to prevent it!

Phil

bill
Re: Rodents coming in downdraft vent into kitchen range
bill

we call this stuff rat wire.- I like the screened box over the outside, using 1/4" welded galvanized screening from most Farm & Garden stores such as American Fence & Supply on 45 in League City.

It works

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