Masonry chimneys single flue chimneys with extended flues if your chimney has a single flue that extends above its crown this is the type of system you have.
Extended height chimney cap.
Select a chimney cap with a screen height 5 inches above your tallest flue at least 5 inches taller than the blue dotted line.
The chimney cap is giving us 1 3 times 37 28 the flue vent cross section in opening size.
The chimney must extend at least 3 above the highest point where it passes through a roof.
There must be at least 5 inches of clearance between the top of your tallest flue and the lid or roof of the chimney cap.
This item is 30 tall overall.
Check the height measurement on the packaging and make sure it s at least 5 inches 13 cm taller than the flue or else your chimney can t vent properly.
22 flue extension increases height by 1 foot.
This cap actual base size is 9 1 2 x 9 1 2 with 3 4 stainless steel expanded metal screen.
Due to a variety of sizes and options each specialty flue extension is made custom per order.
Often the repair for a too short chimney or flue whether masonry or metal is simply to extend the chimney to the proper height above the building rooftop.
This cap comes with 6 total tension screws that will go through spot nuts located along the four sides of the cap.
Screen height is approx 7.
The 2 inch space between chimney cap and flue top is giving us more space 37 than was given by a 6 inch flue that just opened to the air with no cap at all 28.
The height of the screen part of a chimney cap is the screen height.
Specifications aren t there to merely cause you problems.
Securely fastened to the uppermost clay liner these caps can also increase the vertical distance among flues in a multi flue chimney reducing the likelihood of smoke being drawn into a downstairs flue.
5 brush off any debris that s on the crown.
And at least 2 higher than any portion of a building within 10.
This cap also features a removable lid for easier chimney maintenance.
24 gauge 13 in.
Superior animal proof oval 3 4 in.
Base stainless steel multi flue chimney protector cap with swingtabs and 12 in.
They intend to make sure that the chimney draws properly and that a fire hazard does not occur.
Extended flues are amongst the most common and easiest to cap chimney caps for this kind chimney can be directly attached to the flue with clamps or screws.
If you can t find a cap that fits on your chimney crown you may need to custom order one.
Screen height homesaver 7 inch round windbeater stainless steel chimney cap vacu stack 13 diameter weathershield standard height chimney cap 1 2 mesh screen and 19 lids.
Hole mesh prevents creosote buildup.
