Draft King Copper Multi-Flue Chimney Cap: An Honest Review

If your chimney has two or more flues that need chimney caps, you have two options to cover them:

1. Add single-flue chimney caps to each individual flue
2. Add one multi-flue chimney cap to cover every flue at once

Homeowners appreciate these multi-flue caps for their convenience and striking architectural aesthetic. But deciding which one to buy can be tough. What type of metal should you get? What size do you need? How much is the cap going to cost?

We manufacture thousands of multi-flue chimney caps each year at HY-C. And in this guide, we’re going to walk you through one of our top-of-the-line multi-flue models: the Draft King BigTop Copper Multi-Flue Chimney Cap.

We’ll outline this cap’s available sizes and heights, how much they cost, and how you can go about installing one on your chimney.

By the time you’re finished here, you’ll have everything you need to decide whether or not a Draft King multi-flue copper chimney cap is right for you.

Table of contents (click to jump to a section):

1. Sizes
2. Heights
3. Prices
4. Installation

Discover the Draft King Copper Multi-Flue Chimney Cap

Draft King Copper Multi-Flue Chimney Cap Sizes

Most chimney caps are attached directly to the clay flue tile that protrudes from the chimney’s crown. As such, the size of the flue tile typically determines which size chimney cap you’ll need.

Multi-flue chimney caps, on the other hand, work a little differently. Instead of attaching directly to the flue tile, they attach to the chimney’s crown. For these types of caps, the dimensions of the chimney crown determine which size you’ll need.

Draft King Copper Multi-Flue Chimney Caps are available in 17 stock sizes:

Let’s imagine you have a chimney with two flues, and your chimney’s crown measures 21” by 32-½”. Using the table above, we can determine that a chimney with these dimensions will need a Draft King Copper Multi-Flue Cap that measures 17” x 29” (model number CBT1729K).

If your chimney’s crown can’t accommodate any of the stock sizes, we do offer a selection of custom copper chimney caps in the BigTop style.

Draft King Copper Multi-Flue Chimney Cap Heights

While these caps are available in 17 distinct stock sizes, they’re also available in three distinct heights:

• Nine inches
• Twelve inches
• Fourteen inches

But why is that? And which height should you choose for your chimney? The answer has to do with flue tile clearance.

Chimney flues protrude from chimney crowns by anywhere from one inch to eight inches (or more). To maintain a proper chimney draft, it’s vital for the hood of the chimney cap to rest at least six inches above the flue tile.

Say your flue sticks out two inches from your chimney crown. To ensure six inches of clearance, you’d need a chimney cap that’s at least eight inches tall. In this case, you’d select a nine-inch-tall copper multi-flue cap (the closest available height).

The table above can help you determine which cap height you’ll need based on the height of your flue tile. Note that if your flue tile is higher than eight inches (which is unlikely, but not impossible), you’ll need to trim it down.

Draft King Copper Multi-Flue Chimney Cap Prices

There’s no getting around it: copper is expensive.

Used in everything from wiring and piping to electric motors and cookware, copper has many applications outside of chimney caps. And, like those other applications, copper chimney caps are pricey.

Aside from the high price of the material itself, the other factor that affects the cost of a copper chimney cap is size — both the mounting dimensions of the cap and its height. Larger caps require more raw materials to fabricate, increasing their price.

Here’s a look at the manufacturer’s suggested retail prices (MSRP) of each Draft King Copper Multi-Flue Chimney Cap size:

The MSRP range in the table accounts for different heights of each size. For example, a 13” by 19” cap (CBT1319) is available in a nine-inch height ($728.99), a twelve-inch height ($776.19) or a fourteen-inch height ($807.29), resulting in a price range of $728.99 to $807.29.

All told — depending on the height and mounting dimensions you need — a copper chimney cap will cost anywhere from $462.99 to $1,799.49.

Draft King Copper Multi-Flue Chimney Cap Installation

A multi-flue chimney cap installation is no easy task. As a result, we highly recommend leaving the process to the pros.

That said, if you’re still interested in a do-it-yourself installation, here are the steps you’ll follow:

1. Assemble the chimney cap (instructions are provided)
2. Set the assembled cap on your chimney flue in the exact position in which you’d like to install it
3. Trace a line around the flanges of the cap on all four sides of your chimney
4. Mark at least one of the holes in the flanges on each side of the cap (to be used later for mounting screws)
5. Remove the chimney cap and set it aside
6. Using a 3/16” drill bit, drill 1-½” into each of the holes you marked in step 4
7. Run a bead of adhesive (provided) about ½” inside of the trace line from step 3
8. Set the cap back on the chimney, applying downward pressure to seat it into the adhesive
9. Insert masonry screws into each of the 1-½” holes from step 6

With this, the installation of your Draft King Copper Multi-Flue Chimney Cap is complete! If you need further assistance, more detailed installation instructions are available.

Should You Get a Draft King Copper Multi-Flue Chimney Cap?

This has been a deep dive on the Draft King line of copper multi-flue chimney caps. You may be left wondering, though: “Should I get one of these caps for my chimney?”

The biggest barrier to purchasing a copper chimney cap is undoubtedly their price. The truth is that a similar galvanized steel cap or stainless steel cap will offer comparable protection and performance for as low as one fourth the price.

The main appeal of copper is its elegant aesthetic. Homeowners buy these caps because they look incredibly appealing, and they have a price take that matches that appearance.

So, unless you have hundreds of dollars to spare and are highly invested in the appearance of your chimney and chimney cap, you’re probably better off with a more economical chimney cap model. 

If you’re still considering a copper chimney cap, though, be sure to take a look at the guide below. It will answer any additional questions you may have to help you discover whether or not a copper chimney cap is the right choice for you.