Where to vent ductless (recirculating) range hood?
Wanting to use a ductless range hood to save cost and not have to rework my crown molding (I know exterior vented is superior, but this the best option for me I think). I'm wanting to us a GE range hood insert in a custom built hood that I will make (sim to attached pic). The vent I plan to use does have an optional recirculation kit that shows it venting out the front of the hood, but I have NEVER seen a hood with a vent on the front and don't want that. Since my cabinets do not go all the way to the ceiling I was thinking of having the vent exhaust through out the top of the cabinet/hood (inside the kitchen). There is at least 12 inches between the top of the cabinet and ceiling. However, before I do this I want to confirm it is a good idea and I can't find any reference info at all about this kind of installation. I think at the very least I would want to direct the air flow away from the back wall (not straight up) so any grease residue that may make it through the filter does not accumulate on the ceiling. But I really can't find any interior exhaust vents that seem to be made for this application. Lots of exterior roof and wall vents, but nothing made for interior top of cabinets. Really thought I would find info on this since I can't be the first person to have this issue. Thoughts on this approach? Is there a better way/place to exhaust?
#rangehood #hoodvent #kitchenvent
Comments (8)
kaseki
3 years ago
PROSpaces Into Places LLC
3 years agoRelated Discussions
Recirculating/ductless hood?
Comments (2)I don't know anything about the quality of the brand but I would go with the 2nd one because it has 400 cfm. The first one only has 300 cfm....See MoreRecirculating fan my only option over induction range--vent it or not?
Comments (17)There is a thread on here about the VaH ARS system. I think it is here (from notes -- not checked):: https://www.houzz.com/discussions/2347276/vent-a-hood-ductless-ars-range-hood-update#n=65 Opening a single window will spread the grease around just as well or better than a recirculating hood that is crippled with no or slight filtering. Opening one window and using a large window fan in a transverse window (with the cooktop in between) might be better than a non-performing recirculating hood. Please reread my comment. Any hood used has to have adequate performance or it is a waste of money. " Shelly Miller, PhD, a mechanical engineering professor at University of Colorado Boulder, told us that if you don’t have an exhaust hood over the stove that vents directly outside, you’re better off opening a window or running an air purifier." I don't know the date of this telling, but it should be obvious that a grease filter will reduce the amount of grease recirculated, and a charcoal filter (also part of the ARS) will reduce odor. An air purifier that could filter at a 300 CFM rate would be quite the beast; at least the same scale as the ARS. If the filter takes seemingly forever due to its low flow rate, then filtering works mainly by letting the grease aerosol particles settle out on the surfaces and fabrics. Absolutely the recirculating design needs mesh or baffle filters (mesh may be better at low air speeds) or the VaH approach of centrifugal impingement using the blower -- and -- charcoal filters for odor removal. Serious grease particle removal might require stacks of different filter devices. These are available for commercial purposes. [all I have time for this morning]...See MoreUnconventional ways to vent range hood--tap into other existing vents?
Comments (7)Normally, the street sewer to which one's DWV plumbing is connected has a clear air path from under the street to the residence roof via the house DWV. Through this path, and the many others in the development, toxic and/or odoriferous gasses pass. The gasses are kept from the household air by water traps at the points of use. To have any chance that the gasses would not get into the kitchen hood and thence the kitchen when the hood system blower is off, a set of well sealed and powered dampers interconnected with the hood blower would be needed. I doubt even that would pass modern building codes, but it could function. Other houses' DWV would potentially be part of your venting system....See MoreRecirculating (ductless) under cabinet hood--where does used air go?
Comments (6)M Miller Yes, I am planning on an induction range. The under cabinet hoods I have been looking at all seem to have a round vent out the top. That is why I was asking about where the air goes with a recirculating because I can't figure out what happens to that old air when the recirculating unit is mounted under an enclosed cabinet. This Zline you pictured sends the air directly out the front of the unit. That, I am assuming, is the critical distinction. So, If I go for an undercabinet I should look for one with front vents. Or, I should stick with my original idea of a chimney because those typically have either side or front vents at the top of the chimney. Thank you for your help....See MoreDerrick Helm
3 years agokaseki
3 years agoDerrick Helm
3 years ago- PRO
Patricia Colwell Consulting
3 years ago kaseki
3 years ago
kaseki