Learn More: Chimney Cap and Shroud Measuring Guide

Single Flue CapSingle Flue Caps for Clay Tile Flues

Top View Single Flue MountThe single flue cap is the most basic cap. And it is also the easiest cap to measure for. Simply measure the outside width and outside length of your flue. Each Single Flue Cap has a flue size range that it will mount to. For example an 8" x 8" cap may mate to flues from 6" to 8.5" in both width and length. Each cap on Woodland Direct has a sizing guide associated with it that will help you select the correct size.

Pressure Mounting a CapFlue Mount: Pressure Screws

Single Flue Caps mount to the flue of the chimney directly through pressure screws. The screws will either be located on the four corners of the cap or in the center of each side of the cap. You simple tighten the screws until they hold fast to the clay flue tiles. The screws must not penetrate the flue or they may cause it to crack. Once tightened the cap will be able to withstand even some of the strongest winds.

Flue Grip AdaptorsFlue Mount: Inner Flue Grips

Some single flue chimneys have clay tile flues that are even with the crown of the chimney. They do not extend high enough above the flue to allow a single flue cap to mount securely with its pressure screws. If you have this style of flue then one of our Inside Flue Grip Adapters will allow you to still use a flue mount cap. Instead of screwing the pressure screws tight against the flue, you screw them into the adapter. Then you slide the adapter legs into the flue. Once inserted into the flue some adapters require you to tighten the pressure screws slightly to ensure a snug fit. While these adapters do provide a strong grip to your flue tile, they may not withstand high winds.

Flue Mount to crown mount adaptorsConvert Flue Mount to Crown Mount

If you live in a high wind area and have a flue level with your crown then your best option for mounting a Single Flue Cap to your chimney is to convert the single flue cap to a crown mount cap. These adapters must be screwed into the Single Flue Cap, then they are screwed into the chimney crown using self tapping screws. This allows the cap to have a wind resistant mount to your chimney when there isn't enough flue tile above the crown to accommodate the pressure screws.

Multi Flue CapMulti-Flue Caps

Multi-Flue Caps are designed to cover chimneys that have more than one flue exiting out of the crown. While slightly more complicated to measure for using one multi-flue cap often gives a cleaner look than using multiple single flue caps. To measure for a Multi-Flue Caps you need to gather a minimum of five measurements. The measurements you need are:Multi Flue Measuring Guide

  1. Total crown width
  2. Total crown length
  3. Width of the flue area
  4. Length of the flue area
  5. Height of the tallest flue
The Multi-Flue cap can be sized to fit just around the flues or to cover the entire chimney crown. You can save on the caps cost by sizing it to the minimum needed to cover the flues (especially if you are using an expensive material like copper). But for the best looking cap and the added protection of covering the chimney crown many people choose a full size cap.

Top Mounted CapCrown Mount - Top Mount

Many Multi-Flue caps, including our Chimney Champion, are top mount caps. Top mount caps screw directly into the crown of your chimney using self tapping screws. Once screwed into the crown they are very wind resistant. Depending on the size of the cap they will have differing numbers of screws needed to hold them down.

Side Mounted CapChimney Mount - Side Mount

Side mounting is a custom order option for many chimney caps and shrouds. Side mounting allows the cap or shroud to be securely fixed to chimney without risking the integrity of your chimney crown. These caps are also the most secure against high winds. Side mounting caps overhang the edges of your chimney, very similar to a shoe box lid over hanging the shoe box. Once in place the cap is screwed directly into the chimney brick. The number of screws will depend on the size of the cap or shroud.

Pre Fab Chimney PicMetal Pipe Caps

Solid Pipe ChimneySingle Pipe (Solid Wall) Caps

Single Pipe Chimney Caps are designed to fix onto either a prefab chimney or a metal flue liner installed into a masonry chimney. To find the correct cap for your chimney you need to measure the inside diameter of the pipe. Then select the appropriate cap with the matching size.

Air Cooled ChimneyAir Cooled (Double or Triple Walled Pipe)

Air Cooled Pipe Chimney Caps are designed to fix onto a prefab chimney flue. To find the correct cap for your chimney you need to measure the inside diameter of the pipe and the thickness of the pipe. If the pipe exceeds 4" in thickness give us a call so we can customize a cap for you. As long as the pipe is under 4" in thickness then select the appropriate cap with the matching diameter size.

Pressure ridge ExampleSnap in Mounting

The metal chimney caps mount through a snap in pressure ridge. You simply squeeze the caps mounting tube gently and push it inside your metal pipe. Once inside the pipe the mounting tube expands and grips the metal pipe. This mounting system gives a relatively strong mount while allowing access to the pipe for cleaning and maintanance. For a more secure fit high heat silicone can be used to 'glue' the tube and pipe together.

Shrouds

Chimney shrouds a measured in are similar fashion to multi-flue caps. the main measurements you need are:Shroud Measuring Guide

  1. Total crown width
  2. Total crown length
  3. Width of the flue area
  4. Length of the flue area
  5. Height of the tallest cap
By accounting for the installed caps the shroud can be sized to fit around them.

Side Mounted CapChimney Mount - Side Mount

Side mounting allows the shroud to be securely fixed to chimney without risking the integrity of your chimney crown. This mounting technique is the most secure against high winds. Side mounting shrouds overhang the edges of your chimney, very similar to a shoe box lid over hanging the shoe box. Often a side mounting shroud will have a chimney chase cover included as part of the shroud. Once in place the cap is screwed directly into the chimney brick. The number of screws will depend on the size of the cap or shroud.

Top Mounted CapCrown Mount - Top Mount

Some Shrouds are top mounting. Top mount shrouds screw directly into the crown or chase cover of your chimney using self tapping screws. Once screwed into the crown or chase cover they are very wind resistant. Depending on the size of the shroud they will have differing numbers of screws needed to hold them down.

Chase Covers

Chimney Chase covers are designed to completely cover the crown of a masonry chimney or the top of a prefab chimney/chimney surround. Chase covers protect your chimney from the effects of wind and rain corrosion. To measure for a chase cover you must record the total length and width of the chimney top. Once you have those measurements you must also measure the precise location of each flue or metal pipe. To prevent installation issues many chimney chase covers come without the openings for the flue or pipe. This allows the installer to cut a perfect opening for their situation.

Side Mounted CapChimney Mount - Side Mount

Chase covers are always afixed to the chimney with a side mount. This maintains the 'weather-proof' integrity of the chase cover. Simple screw the chase cover into the side of the chimney for a secure and longlasting mount. Some chase covers aloow room between themselves and the crown to allow for needed airflow. If this is the case with yours do not try to force the crown against the chimney crown.

Clay and Copper Pots

Accuracy is very important when measuring for a chimney pot, whether that pot is made of clay or copper. Be sure to get every measurement requested if any are missing then your pot may not fit your chimney as well as it could. The main concept to keep in mind with pots is clearance. A chimney pot needs adequate clearance around the flue or metal pipe to be mounted firmly and to not com into contact with any other pots on the chimney.Chimney Pot Measuring Guide

Mounting a Clay PotMounting guide for clay pots

Clay pots mount directly to the chimney crown. Mortar is applied to the crown and then the clay pot is set in the mortar. The mortar should be applied so that rain will run off away from the pot. Also take great care when lifting a clay pot up on to the chimney crown. Clay pots can weigh hundreds of pounds and if dropped will shatter.

Mounting a Copper PotMounting guide for copper chimney pots

The simplest mounting method for copper chimney pots is to use masonry screws to screw the pot directly into the top of the chimney crown. This method works well on masonry chimneys when installing a single pot. If you are installing the pot on a prefab chimney or installing multiple pots then mounting the pots to a side mounted chase cover is the preferred method. This allows the pots to be soldered onto the chase cover and the chase cover to then securely grip the crown. This is a very secure mount and gives the added benefit of complet protection for your chimney crown.