How To Connect Single Wall Stove Pipe To Double Wall In 3 Steps

Are you trying to figure out how to connect single wall stove pipe to double wall one? Here’s a guideline of everything you need to know…

Okay?

To make your connection job simple and easy, first, it’s necessary to become familiar with the different stovepipes and how they work. That’s the reason, to make your task easier, today we will tell you all about-

• What are a wall stove pipe and its purposes?
• Types of wall stove pipe and their specifications
• How to construct a through-the-wall stove pipe?
• When to use a single wall or double wall stove pipe and its benefits?
• How to connect a single wall stove pipe to a double wall stove pipe?

What is Wall Stove Pipe?

A stove pipe is used to vent a wood-burning stove. It can be used only inside the room where the stove is attached. It is placed between the bottom of the ceiling and the top of the wood stove.

The main purpose of a stovepipe is to ventilate the excessive temperature made by the wood burning outside the house.

Types of Wall Stove Pipe

You will find 3 types of stove pipe available:

1. Single-wall stove pipe
2. Double-wall stove pipe
3. Triple wall stove pipe

Single Wall Stove Pipe

It’s the most used stove pipe. It has a vertical clearance of 12’’. Again, when used horizontally, it requires an 18” clearance to the ceiling. It also emits some heat from the pipe into the room.

Double Wall Stove Pipe

It is a double-layered stove pipe. It requires only 8” of clearance to the ceiling and 6” clearance to the wall. It is more durable at higher temperatures and also has an internal air-cooling system.

Triple Wall Stove Pipe

It is generally used to protect the room from high temperatures, created by a stove. It requires only 1.5” clearance to the combustibles. It is more durable than single-wall and double-wall stove pipes.

Through the Wall Stove Pipe-How to Connect

Stovepipes are not recommended to use through the wall. Yet if it’s a must, then you can use a double stove pipe with help of a through-the-wall kit.

The Process:

• Select a location
• Take the measurement and mark the outer line
• Cut and remove the wall
• Place the thimble known as the “Through the wall stove kit”.
• Connect the stovepipes to the 45 degrees or 90 degrees elbow
• Connect the stovepipes to the thimble
• At last transition a high-temperature chimney pipe to the double wall stove pipe

Stove Pipe Sizes

There are various stove pipe sizes available. Some of them are:

• 4” Double Wall Stove Pipe
• 6” Double Wall Stove Pipe
• 8” Double Wall Stove Pipe
• 8” Single Wall Stove Pipe

4” Double Wall Stove Pipe

These provide some specific features and those are:

• Has an inner wall of corrosion-resistant stainless steel
• In a 4” diameter vent system, it adds a 12” length
• Used for both inner or outer wood stoves.
• 18 gauge steel construction.

6” Double Wall Stove Pipe

It also provides:

• Corrosion-resistant inner wall
• Twist and lock connection
• Sheet-metal construction

8” Double Wall Stove Pipe

The features provided by this pipe are:

• Stainless steel inner wall with black painted body
• Used for 2 pieces of installation
• Can extend the length from 40” to 68”

8” Single Wall Stove Pipe

The features provided by this pipe are:

• Stainless steel body
• 18” clearances
• Has a length of 48”
• Can be cut if needed

Where to Buy

There are many stove pipe brands available to buy. But for the best performance and build quality, our recommendation would be:

• Selkirk Wall Stove Pipes
• Duravent Wall Stove Pipes

When to Use Wall Stove Pipe

To select what type of stove pipe you should use, you need to know the difference between them.

Single Wall vs Double Wall Stove Pipe

The purpose of a wall stove pipe is to emit excessively hotter air out of the room through the chimney.

Single Wall Stove Pipe

A single-wall stove pipe is cheaper to buy. It needs a clearance of 18”. It emits heat in the room from the pipe and also can be cut according to your requirement. And the single wall stove pipe’s temperature rises maximum where it is connected to the stove. 

As a single wall stove pipe doesn’t have an air-cooling structure inside it so it becomes too hot and maintains the temperature throughout the pipe. It also radiates some temperature to the room. 

Double Wall Stove Pipe

A double-wall stove pipe might be more costly but it has superior quality. In a double-wall stove pipe, the pipe consists of two walls and an air cooling system internally.

So it keeps the pipe’s outside cool and safe by keeping the temperature inside it. Yet, it becomes quite untouchable hot in the lower parts near the stove.

But while going through the upper side, it gradually becomes cooler. The double-wall stove pipe can also withstand higher temperatures compared to a single-wall.

It provides more floor space as it needs only 6” clearance. So it is obvious that a double wall stove pipe is better and safer to use.

Benefits of Transitioning from Single Wall to Double Wall Stove Pipe

It is rare for a single-wall stove pipe to be better than a double-wall stove pipe. Let’s look at some benefits you get by transitioning to a double wall from a single wall stove pipe –

• The double-wall stove pipe needs less space.
• The outside gets less hot.
• It keeps the heat inside the pipe.
• It has an internal air-cooling system.
• It is more durable in high temperatures.

Single to Double Wall Stove Pipe Adapter

As you know, an adapter is needed for single and double-wall pipes. So let’s learn about it.

A single to double-wall stove pipe adapter is used to ensure that the connection between the pipes has enough support to hold each other. It reduces the risk of disconnection between the pipes and other leakages.

Types of Single to Double Wall Stove Pipe Adapters

There are two types of adapters available. 

These are:

• Single wall pipe to the male end of the adapter & female end to double wall pipe
• Single wall pipe to the female end of the adapter & male end to double wall pipe

Read More: You can read our comprehensive guide on Jotul Gas Stove Troubleshooting.

How to Connect Single Wall Stove Pipe to Double Wall in 3 Steps

Already you know all about wall stovepipes, the benefits of the transition from a single wall to a double wall stove pipe, and the adapter. So, it’s time to learn how to connect them.

For this purpose, you need to follow the single to double-wall stove pipe construction. Remember to use an adapter to connect the pipes while following the procedures stated below-

Step 1: Connect the Single Wall Pipe to the Stove

You need to connect the single wall pipe to the stove. For that, you have to go through the following steps-

Step 1: Measure the diameter of the circular flange extending from the stove. It may exit vertically from the top, or horizontally from one side or the back. Most stovepipes are 6 inches wide, but make sure to check.  

Step 2: A stovepipe will have slightly different ends. One end is indented on one side, while the large end fits on the flange. For more confirmation, the smaller end will be crimped or crinkled on one side. After confirming, fit the large end to the flange.

Step 3: Set the single-walled pipe on top of the flange. Push the pipe through the flange while twisting it gently. Once it has slipped over the flange, start rotating it.

Step 4: Push the pipe down on top of the stove until the flange disappears inside the pipe. It will ensure that the flange is located correctly.

Step 2: Connect the Adapter

Now it’s time to connect the adapter. There are various brands of single-wall to double-wall adapters. All of them have two ends.

1. Male End
2. Female End

Once the adapters are picked, you must connect them to the stovepipes. There are two ways to do this.

These are:

Way 1: Connect the female end to the double-wall pipe and the male end to the single-wall pipe. Insert the adapter between the pipes. Slip the female end of the adapter into the double-wall stove pipe and attach the male end to the single-wall pipe.

or,

Way 2: Connect the male end to the double-wall pipe and the female end to the single-wall pipe. Place the adapter between the double-wall stovepipe and the single-wall pipe. Attach the male end to the double-wall stovepipe and the female end to the single-wall pipe.

Step 3: Tighten up The Clamp

You need to tighten the clamp connected to the adapter. This will help to hold the lips of the pipes together. So there is less chance of leaks. There you have it. Your stove pipe installation from single wall to double wall is done.

Thermometer for Double Wall Stove Pipe

A stove pipe thermometer is used to measure the temperature of the air going through the pipe. In the case of a double-wall stove pipe, you need to use a stove pipe probe thermometer.

It is used by inserting into a drilled hole in the pipe right in the way of the blowing air. By monitoring the temperature readings provided by the probe thermometer, you can adjust the stove temperature accordingly. There are certain temperature levels to maintain. Which are-

• 100°F to 400°F for Low Temperature
• 400°F to 900°F for Safe Temperature
• 900°F to 1200°F for High Temperature

FAQ:

Summary

Our goal was to present a practical and step-by-step guide for you to learn how to connect single-wall stove pipe to double wall.

We hope, now you have a clear conception of the connection process. So, pick your chosen right stove pipe and an adapter for a safe and durable installation.

Finally, follow our given 3 simple steps and connect the single-wall stove pipe to the double wall to ventilate the excessive heat and enjoy a super cozy environment inside yours.