Gas Venting: Part 4 - Sizing Vent Connectors with the Rule of Thumb Method
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- Опубліковано 4 лип 2024
- This video shows you how to size vent connectors with the Rule of Thumb method in Canada.
I originally made a mistake, so this is a re-upload. Hopefully the quality is slightly better than potato.
Hey Kelly and anyone else who cares to chime in, I am writing my domestic gas exam in a couple weeks. I’ve been studying and watching lots of your videos thank you for the help! Is there any key things anyone would suggest for studying or focusing on extra before writing the domestic gas exam? Thanks
this is so helpful, thanks
Hi Kelly...
My client just got flagged for having a natural gas furnace venting into a chimney while at the same time a natural gas fireplace vents into the chimney. The chimney is large enough for me to drop a B-vent down to the furnace and vent it out the top of the chimney opening. My question is - and I know you are in Canada so the rule may be different than here in the states but... can the NG fireplace now use the chimney as its primary vent while the B-vent lives and vents the furnace in the same space?
Thanks. It’s very helpful. Can make one video on how we can know the maximum vent connector length horizontal upto th chimney .. th
No video needed. You can travel 1.5 feet horizontally for every inch of pipe diameter.
Example, You have a 4" vent connector, therefore you can travel: 1.5 x 4 = 6 feet horizontally
@@MathematicPlumber thanks 😊
why is the boiler example using just one size manifold (9") instead of staggered sizing like previous example ?
I am just showing that it is possible to install the vent in different ways. The staggered sizing is perfectly acceptable, but buying material to vent it all at 9" is more simple.
@@MathematicPlumber in that case (one manifold) the largest required size will be the entire manifold/ common vent connector? test in 3 weeks, just clarifying, love the videos! way easier than reading for hours
@@davequesnel8740 Sure is
shouldn't you use the area for a circle (PIr^2) instead of just squaring it
Not for the ROT method. The idea is that the average person should be able to do it in their head if they know their square roots.
there is different to size for vent connector with part 2? confused
You will need to give me more details in your question. I don't know what you are trying to clarify.
@@MathematicPlumber in part 2, you said the biggest appliance keep 100% BTU, others take 50%. But in this vedio, your take total appliance 100% BTU? Is I missed something?
@@xiaoxiewang3420 Oh I see what you mean. 'Vents' and 'Vent Connectors' are totally different. And yes, I recognize that this is confusing. You may need to re-watch the first 3 videos to see the difference between the two.
'Vents' are mostly vertical, which means that the flue gases travel up it very easily. Therefore it is calculated at 100% of the largest, and 50% of all remaining.
'Vent Connectors' are mostly horizontal, which means that the flue gases travel through it very slowly or with a lot of extra restriction. Therefore it is calculated at 100% of all appliances venting through it.
@@MathematicPlumber Thanks. very helpful