How to Install a Fantech Kitchen Exhaust Hood Liner 

Getting better with your explanations

I could not find the hood or electronics you used on the website. If you could please give model #s of products used and wear they can be purchased thank you ! Explanations and descriptions are well done and appreciated !

3:08 - reducing the hood duct from 10 to 8 has another positive effect for this application. It will also increase the air velocity a bit in the duct and make your capture rate at the hood more effective. Sorry about having to hack the switch for EC but you won't be sad about that system, ever. Great vid Corbett! Nice shirt!

When I built our kitchen I used a 36" hood so it is a little bigger than the stove but placed the upper cabs so in the future it can be replaced with a 48" in the future. I Crack the window open when I use it and may incorporate your fresh air under the stove in the future like you did. What I would do differently is put in a second hood on the other side of the kitchen just for kitchen cooking appliances like fryers, toaster ovens etc. Oh and I will put the dish washer on a stand to get it up off the floor as the typical install is not good on the back having to bend over for everything.

So I’ve implemented this inline remote fan with Fantech but now wondering what kind of hood to use for the hood liner? Thanks.

Great video content! I will definitely use a silencer on all future kitchen exhaust fans. I wonder if a silencer would quiet a bath exhaust fan (if they make an external fan mount bath exhaust fan)?

How high is the vent hood from the cooktop surface? And I can't wait to see what it looks like when the hood facade is done, everything looks so elegant, but also kinda like it's from 2050. Especially those amazing lights.

Great video. Inspired by Corbeet, I installed a similar system in my house to replace a downdraft venting that basically didn't work. Unfortunalley, Corbeet made a mistake in his video that almost made me buy a wrong piece. At 5:19 he says "I replaced one of these knobs because I wanted to use the EC function of my fan, which basically means it can run from 0, infinite variable, to full speed.". Although he is right that if you have a EC fan you need to buy that extra speed controller, that has nothing to do with variable speed. So, by saying that "I wanted to use the EC function of my fan, which basically means it can run from 0, infinite variable, to full speed" is not technically correct. EC is just a different technology that makes the fan work on a more efficient way (but it also has its downside such as less CFM). In other words, you do not need the EC fan to have variable speed. In fact, the fantech hood already comes with an infinite variable speed already built-in for non-EC fan. So, if you are not planning in using a EC fan (like my case), you don't need to buy that extra speed controller. With that said, here are the pieces he used: First, for those looking for the specs he used on the video, this is what he used: . HL 42: Hood Liner . EC-10VHL: Range Hood Liner Speed Control . LD 10: 8 inch silencer . RVF8XLEC: 8" Exterior Wall Mount Fan with EC Motor Other than that small mistake, great video and I happy with my final installation here.

That is awesome ours sounds like a 747 is landing in our kitchen, everything has to be exhausted to outside in australia

Thanks for the video Corbett - Can you provide the part number to the switch that you used on the hood liner and the motor that you used on the supply side?

I will be remodeling my kitchen in a couple of months, adding duct silencer is a very good solution to reduce noise. I'm curious to know, how do you synchronize the hood exhaust and make-up air to attain zero air valance inside the house did you use analog control?

Can I have 2 kitchen hood exhaust combined into one silencer and one exhaust fan? ( spice kitchen and main kitchen). Also when you say fan is outside it is either in attic or above the ceiling inside the conditioned space right?

New information from one of my replies, but I thought it was significant to mention here as a stand alone. Oh WOW, I just went back and checked the video just to see if I could see the Mylar I did not but at 3:12 Corbett shows the label, I stopped the video to see if the label mentioned Mylar, it did not but what I did notice is the note on the label saying "wash filter frequently". This scares me even more than before, people do not do things that are inconvenient and the way this vent is constructed cleaning was not considered. I would say you would have to disassemble the hood so you could wash the inside of the duct. Maybe a mop would work, but really scary stuff. -MG

I am currently designing my personal house in Florida, and am a huge proponent of exterior-mounted exhaust fans for kitchens and bathrooms (provided that rigid ducts are being used)... But I am curious to know: where along the exhaust did you install the backdraft damper? or was the fan already equipped with one?

That is crazy quiet. What is the loudest thing in this home? What type of price range is there on an exhaust hood?

Do you have the part number for that EC switch? I'm buying the same hood and fan and would also like that type of control over the fan speed. Thanks!

After watching your videos, I finally got the fantech rvf 8xl external fan an 8" silencer and a speed control. I need to build this over an island which was using an old jennair cooking range that pulls air from below. I find the fantech hood liner so expensive, with a remote blower can't we just build a custom box and drop some baffles inside? Or maybe get a used range and pull the motor out. Will be testing the under-counter ducts for make-up air. Coming directly at the cooking surface, it might not need a heater, but probably a bad idea since the duct is not insulated and I'm in very cold climate.

Are you not worried about grease packing up in the silencer?

is it feasible to use an 8" silencer with a 10" in line fan? The length of the 10"fantech silencer is 35 1/2 vs the 8" being 23 5/8. i have limited space and the length of the 8" allows me more room to manuever and create a better direct line air flow. are there any repercussions?

Can you comment on the '4-wire control line' with this EC controller? I have looked at their wiring diagrams, and it appears the control system is low voltage DC, and requires 3 lines (including ground), and the fan requires 3 'regular' 120v AC wires (one being ground, one being neutral, one being hot). So how does this translate into a 4-wire control line?

Great

Corbin, Is there a concern with the silencer becoming saturated with grease?

I can’t believe how quiet that is

I didn't have a great experience with the system. I have a RVF-8XL and HL36 system. 8" rigid duct with 2 elbows and about 6 feed of straight run to the wall. The fan noise was VERY VERY VER Y loud. Like a jet engine, about 75dB at high and 62dB at low. I don't have room for the silencer -- wish I had insisted and made room for it. Called FanTech support, they said my run is too short, so wind noise is expected. However, another issue is the humming noise from the motor at low speed -- when I turned the fan to low speed, I can head an annoying humming noise from the motor. Again, FanTech said it is expected because the fan is trying to run at full speed but it is 'slowed down' by the variable speed control, hence the loud humming noise. I am very disappointed with this setup; wish I had gone with something else. Yes, the fan is strong and can suck a lot but the noise is unbearable. I hope someone is here can offer some suggestion.

Won't that silencer gather a lot of grease and need cleaning?

SO how did you get this past an inspector? This is a complete violation of most codes I have seen. You placed a grease trap inside your ducting. Code requires a smooth pipe from the source to the exit. The internal holes in the baffle are a SERIOUS fire hazard. So did this get inspected? -MG

My toaster exhaust game is weak.

Why not just use aluminum foil tap?