Typical Chimney Cap Size

Without a chimney cap all you have at the top of the flue is an open hole.

Typical chimney cap size.

In comparison a 12 inch chimney size provides a cross section of 113 inches through which to vent smoke. Single flue chimneys with oval flues. Round clamp on single flue liner chimney cap in stainless steel model lc14 96 40 96 40. Installing a chimney cap costs 300 on average ranging from 75 to 1 000.

Chimney wall thickness should be a nominal 4 in. The capacity of a chimney to remove smoke and or energy btu s from an appliance is directly related to the cross section area. In most cases you ll pay 100 to 200 for installation. The wrong chimney flue size is one of the main reasons for a poor draft.

A flue that is not big enough doesn t allow enough air flow. As a general rule the diameter of the chimney should match the flue collar on your wood stove. Rockford chimney supply chase covers are fabricated from 304 stainless steel 24 gauge thickness optional 22 or 20 gauge available. You need to measure the outside length and width of your flue in order to cap an oval chimney termination.

Once you have that number you can search for a slip in chimney cap of the same size. Chimney flue size rules. Round fixed stainless steel chimney cap model fgltc8 78 00 78 00. Neither chimney nor flue liner may change size or shape within 6 in.

The cap runs 35 to 550 depending on material and size. Chimney caps storm collars and silicone are also in stock. Flue diameter and height requirements for category i draft hood and fan assisted appliances size specification requirements for chimney flues and vents diameter height etc. Flue diameter and height requirements for category i draft hood and fan assisted appliances questions answers about size requirements for chimney flues.

If you want to prevent rodents leaves or precipitation from falling inside you. If your fireplace just can t seem to get right and clouds of smoke push back into your house check the flue. Then you can search for a chimney cap designed to fit an oval opening of those dimensions. The way wood stoves and fireplaces work a correct match on fitting the flue size to the appliance is a must.

Chimney size common venting uses. Set your store to see local availability add to cart. Your custom chase cover can be made to fit perfectly on any shape or size chimney or chase top. Item 39242 model sc1313l.

150 mm of either floor components ceiling components or rafters. 100 mm unless no flue liner is used in which case a nominal 8 in. Shelter 13 in w x 13 in l black galvanized steel square chimney cap. If you don t see the size you need contact us.

Venting a wood stove.