Reading by fire
Reading by fire
Reading by fire

Get the Facts: Chimney Terminology

Chimney Codes & Requirements
In Prince George, certain requirements are also needed for your wood chimney. It has to be able to withstand 2200F degree fires (usually creosote) for at least a half hour three different times. Testing laboratories in Canada and the US perform this test and then assign the appropriate UL, ULC, or CSA number to the chimney parts once it has passed inspection. All chimneys must be installed with at least a 2” clearance from any combustible material. This also includes your masonry chimneys.

Finding the Right Chimney Product
Even now some chimney products only meet the most basic minimum of these requirements in order to save consumers from a higher cost. Consider for a moment the possibility of a future fire if these requirements are not properly followed. Other products being sold that have a guarantee on a number of years of use for the chimney generally are of better quality. Furthermore, these chimneys have a 2 to 2 ½ inch insulated wall that restrict the amount of space used. Dale’s Wood and Gas Heat Specialists is proud to sell EXCEL Chimney, an insulated and stainless steel chimney designed to withstand chimney fires. It meets all the required codes with just a 1” wall of insulation allowing extra space for your 2” and other clearances where needed. Dale’s guarantees this chimney for life for the original owner.

Chimney Pipes
A certified chimney pipe is required for the transition through the first wall or ceiling to where the smoke exits. This chimney pipe includes all supports, caps, shields, and other parts. As the most expensive part of the chimney, it is important to strategically place your stove to save the cost of the chimney. The transitioning part of the chimney from the insulated pipe to the stove is known as the black pipe. It comes in single wall and double wall in various sizes, lengths, and elbows (i.e. 90, 45, 30, and 15 degrees). The pipe and black pipe have adjustable slips.

There are two major types of pipe used for building a chimney, insulated and black wall. This outlines the parts to both needed to create a working chimney.
Insulated Pipe
Insulated pipe is a pipe used to transition through the first wall or ceiling from the stove to the finish of the chimney. CSA code dictates that the insulated pipe must withstand three chimney fires for at least a half hour. Each fire must be at 2200F. Some pipes only meet the minimum of the code, others are guaranteed for a decade, while the EXCEL Pipe that Dale’s sells is guaranteed for life to the original owner.

Chimney supports are devices that hold the weight of the pipe as it transitions through the ceiling, attic, and then roof. Various shapes are available for supports.

A chimney cap keeps out rain, debris, animals, and other foreign objects from entering your chimney.

Designed for either a shingle or metal roof, the flashing protects your roof while holding the pipe in place as it transitions through the roof. A storm collar is installed to prevent water from sneaking into the house through the flashing system.

When a pipe transitions through a room that has the potential to be occupied, it has to have a shield. Both the pipe and the shield must be boxed in a chase.

Black Pipe
A black pipe connects the stove to the insulated pipe that takes the smoke outside.
Single Wall
A single wall black pipe is required to by installed 18” from any combustibles. Having various lengths and elbows, the single wall black pipe comes with a piece that slips onto the regular pipe for adjustments. It can then accommodate various lengths without having to cut the pipe to fit. A single wall pipe can get very hot compared to a double wall pipe. (For a single wall, the crimped end is installed facing down.)

Double Wall
Designed with various lengths and to fill tighter spots when space is needed, double wall black pipe must be installed 6” from any combustibles. Double wall pipes are used for safety and come with different elbows and slip joints for easy adjustment. (Double wall pipe is installed with the crimp end facing up.)

Other Information
The following information is useful to Dale’s Wood and Gas Specialists to help you. We recommend taking digital photos and making measurements before you visit the showroom. This allows us to find the right heating appliance that fits your home best.

We need to know about:
• Roof pitch- a normal roof pitch is 4/12; 4”
  rise for every 1’ horizontal run
• Metal or shingle roof
• Straight up or dog-leg installation
• Height from stove to ceiling
• Is it a basement install?
• How many floors above stove to go
• Out through wall and up?