I have a question about the vent length for my atmospheric vent water heater. It seems rather long but it has a decent slope. From what I understand, there can only a certain length of horizontal vent and vertical vent. But is the slope a factor?
After this thing gets from the water heater in the basement up through the first floor to the attic (150”), it then goes diagonally across the attic. The run is about 330” to the next elbow. It then goes vertical to the roof 15” and is above the roof 18”. From the water heater there is about 68” total vertical and 330” continuous not vertical. The angle looks to be about 30 degrees.
It is all b-vent from below the first floor going into the basement. Then it switches to single to connect with the water heater.
Does this run seem ok as it is? The twist is that I was hoping to add about 36” horizontally in the basement to move it a bit closer to free up some space. I also thought it would be good to add a capped tee under the main vertical vent in order to catch moisture and debris. But not only does this add 36” more vent but it also adds another turn.
My picture isn’t to scale at all but it gives all the dimensions and where they are located. The red is my proposed addition. I think I am ok with the type of venting material and the height above my roof. All of the connections in the attic look ok and done the right way. The house was built in 1988.
I do have a bit of a clue about this stuff but this one seems more complicated. I was thinking it would be good to add the capped tee because the top of my current wh is a mess. Seems prudent to not put my nice clean shiny new one right back there to get crudded up too, lol.
* Please advise if the old run looks ok as it is and if I can move the water heater over a bit and add another elbow.
Btw, this forum has been immensely useful over the years. Thanks to all who participate! I can’t ask just anyone around here this stuff because they either won’t really know or won’t tell me because they think I shouldn’t be messing with stuff or want to sell me something. I’m not a plumber but I’ve never had a problem with anything I’ve installed in bathrooms, kitchens, or bathrooms. I also know enough to know when I don’t know something. Some people call that wisdom. I call it not creating a headache, lol! Us landlords may be cheap, but the ones of us that work on our own stuff don’t want any problems down the road (especially at retirement when it’s time to sell). Nothing worse than that midnight phone call from a tenant!
After this thing gets from the water heater in the basement up through the first floor to the attic (150”), it then goes diagonally across the attic. The run is about 330” to the next elbow. It then goes vertical to the roof 15” and is above the roof 18”. From the water heater there is about 68” total vertical and 330” continuous not vertical. The angle looks to be about 30 degrees.
It is all b-vent from below the first floor going into the basement. Then it switches to single to connect with the water heater.
Does this run seem ok as it is? The twist is that I was hoping to add about 36” horizontally in the basement to move it a bit closer to free up some space. I also thought it would be good to add a capped tee under the main vertical vent in order to catch moisture and debris. But not only does this add 36” more vent but it also adds another turn.
My picture isn’t to scale at all but it gives all the dimensions and where they are located. The red is my proposed addition. I think I am ok with the type of venting material and the height above my roof. All of the connections in the attic look ok and done the right way. The house was built in 1988.
I do have a bit of a clue about this stuff but this one seems more complicated. I was thinking it would be good to add the capped tee because the top of my current wh is a mess. Seems prudent to not put my nice clean shiny new one right back there to get crudded up too, lol.
* Please advise if the old run looks ok as it is and if I can move the water heater over a bit and add another elbow.
Btw, this forum has been immensely useful over the years. Thanks to all who participate! I can’t ask just anyone around here this stuff because they either won’t really know or won’t tell me because they think I shouldn’t be messing with stuff or want to sell me something. I’m not a plumber but I’ve never had a problem with anything I’ve installed in bathrooms, kitchens, or bathrooms. I also know enough to know when I don’t know something. Some people call that wisdom. I call it not creating a headache, lol! Us landlords may be cheap, but the ones of us that work on our own stuff don’t want any problems down the road (especially at retirement when it’s time to sell). Nothing worse than that midnight phone call from a tenant!
