How high does a chimney need to be for wood burning appliances, wood stoves

WETT Technician discusses how to determine the required height of a chimney above the roof line.

[@michaelswain9991]

Thanks, this covered what I needed to know (being in Ontario) very well.

[@MrDanny1775]

Great info, helped me install a wood stove in my workshop/garage in PEI....

[@thecustompainter1564]

Thanks for the info!

[@PIANOBARN]

Very informative

[@showkeyasheikh2258]

Nice information sir

[@kevinkelly9220]

Very informative, thx! The link to CMHC code is invaluable.

[@chrismajor6682]

Go to www.chriswoodheatservices.com/links-blogs/ there you'll see a link to GUIDE TO RESIDENTIAL WOOD HEATING from CMHC

[@joea104]

You and your video are awsome sir thank you SO very MUCH. I would ask you please could you tell me the best flashing available to prevent any water leaks through my barndominium house. Im considering doing the through the wall method just because of this concern but i keep reading comments to not use 90s and go straight up. Any advice would be greatly appreciated 🙏

[@chrismajor6682]

The chimney manufacturers all have roof flashing that is certified for their chimney system, the best way is through the roof, I use a metal flashing on metal or asphalt shingle roofs. Check with the brand of chimney you are installing as to what is available.

[@joea104]

@@chrismajor6682 okay thank you i will do just that.

[@ROCKISLANDFARMSTEAD]

I have a 9/12 roof and I've just over 10' away from the peak. Based on the sheet with the stove it says 114" for the above roofline chimney pipe. Does that sound accurate? I heard from some farmers that 3 feet over roofline is enough if I am over 10' away. I am in Upstate NY. Great VIDEO!

[@chrismajor6682]

114" is correct, that's from the roof line to the top of your chimney measured from the roof on the high side of the chimney to the top. That will bring you two feet higher than the ridge of your roof.

[@casper3130]

My instructions just read the chimney should be 2 foot above the highest object within 10 feet. The building I'm installing the Wood Stove in is the highest object other than trees that are 10-12 feet behind the building.

[@chrismajor6682]

Yes and a minimum of 3' above the roof line, it gets tricky when the roof is steep and the roof itself is withing 10', that's when the formula helps. thanks Casper for your comment.

[@jasonminigan5298]

Keep making videos :)

[@brianduchowicz5321]

What about a 3 car garage with a flat roof to the right and high pitched garage to the left can I put stove on flat roof side?

[@chrismajor6682]

Flat roofs pose a potential problem with leakage, having said that yes you can, as long as you out of the roof minimum 3' and are higher than 2' of anything within 10'. This applies if you live in Canada.

[@pauld7309]

If I have a 4/12 pitch and placing my pipe just on side of the ridge, so my 3 ft pipe coming out of the roof should be good? It would probably get me above the ridge by probably 18 inch's .. thx

[@chrismajor6682]

You can add the chimney cap for additional height, but according to local codes and manufacturing instructions that I deal with you would need 24" above the ridge, you could have issues with turbulence or down drafts and even insurance issues unless you comply

[@pauld7309]

@@chrismajor6682 gotcha , thx for the quick response! You Rock.

[@Threewulphmoon]

I'd call you to install but i think im a bit too far south of your service region. In regards to your comments about longer not always being better and heat wicking; what is your opinion on wall exits vs roof? Is it a terrible choice riddled with draft and creosote issues? I've only ever used a roof termination, i want to move the stove but not sacrifice performance.

[@chrismajor6682]

Through the roof is always the best option. Keeping in mind that the most important issues is placement of the appliance and having the most direct and shortest route to get flue gases out of the building envelope with the fewest amount of direction changes.

[@GunninWizard]

What about high wind areas? I live in an area that gets 50 mph straight line winds. Does just using braces stop them from blowing off

[@chrismajor6682]

When in doubt bracket are less than 100.00, some lighter wood rated chimneys I would definitely use bracket like ICC EXEL chimney.

[@user-bn8qr2gz8l]

So can i have 10 feet high and 16 fèet horizontal? 5inch pipe on wood stove! I want to install to my home but i am a bit confused 😢

[@chrismajor6682]

Not really getting the question, check out an installation manual to get the basic requirements for what your doing.

[@user-bn8qr2gz8l]

@@chrismajor6682 thanks for your answer sir i downloaded your manual but i cant understand. I have a 7x6 metter home with triangle roof with tiles height 4 metters. If i have a total height for pipes 3.8 metter that means i come + 50 cm up the top of roof how many metter is the max horizontal length of pipe i can have? Pipe size is 120 mm (5 inch). Hope you can understand me

[@chrismajor6682]

@@user-bn8qr2gz8l It sounds like you need to get a professional to assess your situation, I cannot determine your needs in what your telling me. Good Luck

[@MrSprintcat]

Any suggestions for a house that is well insulated? Useing a wood stove that is super Efficient, located in the basement is a challenge, the stove is hot the pipe is cold ,😅

[@chrismajor6682]

I would suggest a wood stove rated for mobile home that can take it's intake air from outside and they don't depressurize the house. They are not special just rated for tight fit homes, there are a lot of affordable ones on the market.

[@MrSprintcat]

Yes , I did that. The problem with that it is illegal .the fresh air intake can become a chimney, 😮

[@chrismajor6682]

Here it's not illegal to install your stove anyway you want, just not insurable. In this case it's recommended to use. The stove would have to be rated for and certified for this purpose being used in that manner and insurable and yes there has been anomalies where the flue gases reverse that's why they use non combustible venting for it. @@MrSprintcat

[@MrSprintcat]

Thank you for your reply, Chris. I'm thinking that having a company come out and do weatherization on my house was a mistake. My old wood stove ran much better ,with not that much more wood . Now we are air tight with a high efficiency, BK, wood stove, and stainless steel liner the challenge is great😢. Old stove in 20 year old chimney was the cats meow 😅.

[@lukiss01]

What if youre going outside a wall?

[@chrismajor6682]

Same thing, except a much more costly and difficult install

[@claytonroberts344]

So the pitch is 6/12 So you take 6x10=60"+24" I have mine at 4 feet 6 inch's higher then the peak of the roof. Would the be good to have it?

[@chrismajor6682]

Keeping in mind that your local regulation need to be considered but the installations instructions of factory chimneys and the standards here in Ontario Canada would be a minimum out of your roof 3' and 2' higher than the highest obstacle therefore is your chimney comes out of your roof 3' and there is nothing around or within 10' other than your peak or ridge of the roof you would only need to be 2' higher than that (the peak). Check you local officials to get your local codes etc... Having your chimney unnecessarily much higher there is possible issues with the flue gases cooling off create issue in very cold climates.

[@claytonroberts344]

@@chrismajor6682 we put the chimney 4'6" higher then the peak of the roof top

[@chrismajor6682]

@@claytonroberts344 If I am understanding you right, that's higher than the codes and manufacturers instructions I deal with. The issue is then if it gets cold enough where you live the flue gases can cool off too fast and turn to a solid, (more creosote) if not, you would have better draw going higher.

[@claytonroberts344]

@@chrismajor6682 that's what I was thinking too.

[@claytonroberts344]

I was thinking on going 9 to 10 higher up to get it were it is the same high as the peak of the roof of the neighbor's house

[@susiervo1]

Thought this was a vidal sassoon commercial

[@chrismajor6682]

Just the shampoo not the conditioner LOL

[@bkoz319]

How would this work for a gas appliance b-vent?

[@chrismajor6682]

B vent is a vent not a chimney.

[@bkoz319]

@@chrismajor6682 yeah i know thats why they call it a vent LOL. I was referring to if you just want to use a b-vent thru the roof. I believe there is a 8' rule

[@chrismajor6682]

@@bkoz319 I'm a gas technician as well and It all depends on the classification of the appliance that's being vented and the brand of certified materials used It's easy to generalize in general conversation but it's technical with all the different types of appliances and circumstances in roof configurations. Gas unlike wood is not a DYI project.

[@davewaters9203]

The correct way of installing a chimney is to get a professional fitter to do the work .it may cost a bit more. But it's done right

[@chrismajor6682]

Yes of course, but factory chimney's are designed for the general public to install as a DYI projects, and is why they are sold in hardware stores. Not all people who install their own chimneys do it for fun but out of necessity, installation by professional can double or triple the cost of installing a factory chimney. Not sure about your comment "it may cost a bit" you can add 1 to 2K. I install and/or consult, then inspect either way it gets done right.

[@NickFrom1228]

It's not rocket science so getting it done right is pretty easy to do. It's not worth doubling or tripling the cost when you can do a couple hours research and find out the info.

[@chrismajor6682]

@@NickFrom1228 No it's not rocket science, I picked the two most common issues I see where people tend to get it wrong, chimney height above the roof line and Garage installs requirements. Thanks Nick.

[@rossonphillips]

@Nick Knight So true I saved 2k by doing it with a friend, researched all the codes and is all done in code, and the satisfaction of doing it yourself was priceless!

[@snakeplisken4119]

Wow very confusing

[@unclejack41]

Change of pitch behind chiney !!?? C,mon bro.... im old school roofer !!! What !? Ya..... no

[@chrismajor6682]

For more information see Chriswoodheatservices.com