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Wood burning stove in a shed chimney kits

Chimney style & colour
Silver EXIT ROOF
Black EXIT ROOF
Silver EXIT WALL
Black EXIT WALL
Diameter

Customer Reviews

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G
G.O.
Stove in a shed kit

I bought a twin walled stove fitting kit from Julian a month or so ago and the kit itself is superb. It comes with all the bits needed, even including the driver for the roofing screws, so some thought has clearly gone into putting it together. Before ordering I did a lot of research into the various different brands and worked out that buying the kit from Julian was the best option for what I needed.

Aside from the kit, the support Julian has provided has been first class. Before buying I asked numerous questions via the website chat feature, all of which were answered straight away. Once the kit arrived I had a couple more things to check, not having done this before, again all answered quickly via the site.

I now have a warm office, and would thoroughly recommend Julian and his products. The information on the website and his excellent support gave me the confidence I needed to fit the stove myself, and chop a big hole in the roof of my office!

13022.

M
M.D.
Log cabin kit

After reading online regarding fitting a log cabin woodburning stove. I came across the stove fitters website with a fantastic guide and I contacted them about the kit I needed for my cabin. I had a couple of questions which I answered very quickly so I ordered the kit which arrived very soon. In the kit was everything I needed from the chimneys to the connecting pipes and the roof capping including the rubber surround to the roof. I ordered the twin wall 6 inch kit which also looks fantastic as well in black

THROUGH THE ROOF Kit (EASY-PEASY CLIP-TOGETHER)

The Basics

Super easy to install - the chimney parts just clip together (no glue or sealants required except for the roof flashing) and the bottom of the chimney just inserts into the stove with a wrap of sticky-back fireproof webbing. Ever heard of Meccano kits? You get the picture. Because twin wall pipe has clip-on locking bands a chimney made only of twin wall (without vitreous pipe at all) is very strong structurally. Hence only one bracket is required. If this bracket is not aesthetically pleasing it can be swapped for a roof/rafter support that can be hidden in the roof area. 5" twin wall has a outer diameter of 192mm and 6" has a diameter of 217mm.

Because it is insulated the flue pipe can be as close as 5cm to wood and is completely safe (7cm if the flue is boxed in). It typically gets no hotter than a radiator. For more info on combustible materials and hearths etc. see WHAT YOU NEED TO KNOW below.

If your stove has a 6" collar then choose a 6" connection and 6" flue.

If your stove has a 5" collar then choose a 5" connection and 6" flue.
If your stove collar is 5" AND your stove is DEFRA Smoke Exempt (DEFRA-approved) then you can also choose a 5" connection and 5" flue (looks less fat).

If your stove has a 4" collar then choose a 4" connection and 5" flue"
If your stove has a 4" collar AND is NOT DEFRA Smoke Exempt (DEFRA-approved) then choose a 4" connection and 6" flue.

NOTE: If fitting an Ekol Applepie stove, with their bespoke rear adaptor, we will need to add a sweep door to the lowest section. See "Customer's Also Bought".

Hole in the Roof - Will it Leak?

It is easy. The two flashings we sell are easy to install and leakage is zero when installed properly. Hole size should be diameter of pipe plus 50mm air gap all round for safety (70mm all round if pipe boxed in and not open to the air). So that's 100mm extra on the diameter or 140mm extra on the diameter if passing through a boxed in area. 5" twin wall has a outer diameter of 192mm and 6" has a diameter of 217mm. You can fill the air gap with Rockwool afterwards.

This is an EDPM flashing and is suitable for almost all non-tiled roofs (felt, glass fibre, rubber, EDPM, zinc, etc.) and will even work with corrugated roofs. Silicone sealant and metal roofing screws (or wood screws into wood) are used.

EDPM flashings are perfectly water tight.

This is an aluminium/rubber flashing suitable for tiled surfaces e.g. Slate roofs etc.).

It is perfectly feasible to DIY such a task although some may find it easier to get a roofer to complete this part of your stove install.

Installation Videos

Alternative to Screwing Through Roof

If you do not wish to penetrate the roof with screws at all? Just make a wooden template (like a picture frame) that can be placed atop the flange so weights can be added during the silicon drying process. This works fine for most flat surfaces e.g. glass, EDPM, rubber, polycarbonate etc.


Caution

INDIVIDUAL ITEMS WITHIN KITS ARE NOT REFUNDABLE. IF THERE IS SOMETHING YOU DO NOT REQUIRE LET US KNOW BEFORE ORDERING.


THROUGH THE WALL Kit (EASY-PEASY CLIP-TOGETHER)

The Basics

Super easy to install - the chimney parts just clip together (no glue or sealants required except for the roof flashing) and the bottom of the chimney just inserts into the stove with a wrap of sticky-back fireproof webbing. Ever heard of Meccano kits? You get the picture. Because twin wall pipe has clip-on locking bands a chimney made only of twin wall (without vitreous pipe at all) is very strong structurally. Hence only two brackets are required. 5" twin wall has an outer diameter of 192mm and 6" has a diameter of 217mm.

Because it is insulated the flue pipe can be as close as 5cm to wood and is completely safe (7cm if the flue is boxed in). It typically gets no hotter than a radiator. For more info on combustible materials and hearths etc. see WHAT YOU NEED TO KNOW below.

This kit assumes you have a roof overhang of no more than 8.5cm. If your overhang is between 8.5cm and 15cm let us know in the NOTES section of checkout (we can upgrade you to longer brackets at no extra cost). If overhang longer than 15cm you will require a bespoke design.

With this kit you can create three different configurations with this one kit: 2A, 2B or 2C and this should be the same whether your roof is flat or sloping. 2A and 2B are shown utilising a 2m wall with a 50cm high stove. If struggling for height remove the lowest 25cm length and put it higher up. The higher the first pipe placed on the stove, the better the performance (but do not over-worry this).

250mm chimney through wall kit
500mm chimney through wall kit
1000mm chimney through wall kit

If your stove has a 6" collar then choose a 6" connection and 6" flue.

If your stove has a 5" collar then choose a 5" connection and 6" flue.
If your stove collar is 5" AND your stove is DEFRA Smoke Exempt (DEFRA-approved) then you can also choose a 5" connection and 5" flue (looks less fat).

If your stove has a 4" collar then choose a 4" connection and 5" flue"
If your stove has a 4" collar AND is NOT DEFRA Smoke Exempt (DEFRA-approved) then choose a 4" connection and 6" flue.

NOTE: If fitting an Ekol Applepie stove, with their bespoke rear adaptor, we will need to add a sweep door to the lowest section. See "Customer's Also Bought".


Caution

INDIVIDUAL ITEMS WITHIN KITS ARE NOT REFUNDABLE. IF THERE IS SOMETHING YOU DO NOT REQUIRE LET US KNOW BEFORE ORDERING.


Hole in the Wall - Will it Leak?

It is easy peasy - honestly. The two sealing plates we supply are easy to install and leakage is zero when installed properly. They are ideally applied to a flat surface with silicon sealant. Hole size will be an elipse (egg shape) and you can draw around the inside of the flashing to get you hole shape. But then you will need to make that elipse larger: plus 50mm air gap all round for safety (70mm all round if pipe is boxed in and not open to the air). So that's 100mm extra on the eclipse diameter or 140mm extra on the eclipse diameter if passing through a boxed in area. You can fill the air gap with Rockwool afterwards.

What's Included?

What's Included in My Kit?

Our kits contain everything you should need to install your stove in a shed or garage. this includes:

  1. Sticky-back fireproof webbing: to seal joint between stove and adaptor.
  2. Adaptor: fits between stove and first twin wall part (we will ensure you get the correct adaptor).
  3. Straight lengths: may be adjustable in some situations.
  4. Weathering Cowl: good all rounder, prevents rain, birds, downdrafts.
  5. Adjustable bracket or brackets (through roof kit has one bracket, through wall has two).
  6. Cosmetic finishing plate: sticks to flat surface with dabs of silicon glue.
  7. Roof flashing for "Roof Exit" only: choose aluminium if you have tiles on your shed or EDPM for zinc, felt, corrugated, fibreglass etc..
    https://www.stovefitterswarehouse.co.uk/products/edpm-flashing
    https://www.stovefitterswarehouse.co.uk/products/45-degree-rubber-aluminium-flashing
  8. Locking band: one per joint is supplied.

Not quite what you require? Well now you understand the parts you can create your own kit see all parts here:

Or contact us and we will adapt it as required. We even offer a full and free design service: https://www.stovefitterswarehouse.co.uk/products/chimney-design-to-building-regulations

Customise your kit

Hide the Bracket (Roof Only)

If you do not wish to see a bracket in the shed or garage (or have no wall within reach) you can choose instead to fit a roof/rafter support that fits in the roof space or directly on the ceiling.

Note that this part may need "hiding" in the void of the roofspace or may be "on show" on a ceiling. You can box it in of course, as long as you ensure all distance to combustibles regulations are followed (7cm minimum air gap between twin wall and combustible material).

Distance to combustibles article

To add this bracket instead of the visible bracket please see "Customers Also Bought".

Removeable Flue Section (Roof or Wall)

You might wish to replace the bottom length of twin wall with a "removable" section so the stove can be removed as desired without dismantling the chimney. Building regs does state that a stove should be removable without dismantling a chimney so this can be wise. Our thoughts with such a short chimney are that the chimney is so easy to dismantle anyway this point is rather moot. Note also that Building Regulations are usually not relevant for properties not connected to a main dwelling (don't take our word for it for every situation).

If you do choose to opt for this part it has its own built in adaptor.

More about this part here including detailed images of the exploded part.

To add this part instead of a standard 500mm length please see "Customers Also Bought".

Add Additional Lengths

Need to add any extra lengths? You can choose your items here. Do not forget that every extra length requires a narrow locking band as these are not included by default.

You can have up to 1.8 metres of unsupported flue (so 2 metres above the highest bracket or roof support). If more than 1.5 metres unsupported (but less than 2 metres) please add a "wide locking band" to the first joint above the highest bracket /roof support. Wide locking bands go around narrow locking bands (so both needed on same joint).

what you need to know

Transforms a Cold Room

If like many people, your shed or garage is your refuge, then you want to make it as comfortable as possible. This means finding a way to keep it heated during the colder months. A small wood burning stove is the perfect solution. It can completely transform a cold and unwelcoming shed or garage into a warm and cosy retreat. If you're just considering the idea or wondering about installing a wood burner, then you probably have a lot of questions.

Installation is probably a lot easier than you might think. With sheds, garages and garden rooms not attached to the main property no permissions or certificates are usually required. DIY is not a difficult task as the chimney system is "clip-together" and because it is a shed we are not working at a great height.

Regarding permissions or certificates you do not need one if the property is not "habitable". So if not suitable to be lived in then you are okay.
Apple Pie wood burning stove

Best Stove for the Space

There are a lot of styles of stove to choose from. For a shed or garage, you will usually want a small wood burning stove. Some have integrated log storage which can be handy, as it will save you from going out in the cold when your stove needs topping up with combustibles.

Ultimately, it is a matter of preference. The best stove is one that fits in the space, and that you like the design of. Check out the small stoves on this page or view all of our stoves.

Stove Size

For most small spaces, a 3-5kW stove is probably the right choice. You can use a calculator to check what heat output would be best (you can find out more here). This is based on the space inside your shed. However, unless you have a huge shed or garage, a 4kW or small 5kW stove is probably the right size for you. While small, it will produce a lovely cosy fire and plenty of heat. Or choose a smaller 5kW stove and put less wood in it!

These are small wood burners that will heat the room well but not take up too much room. Remember, you must consider the available area. Please try to measure the height and length carefully – they can take up more space than you think!

Best Location

If you can, it is best to make sure that the flue of the stove will be more than 2.3m in length from the outer wall of your home. Flues closer than this have to be taller than your home. If it's beyond this distance, it only has to be 1m above the top of your shed's roofline. For best results a minimum 3m of chimney height above the stove is required (higher the chimney the better the draw). Inside the shed or garage, the stove should be no closer than specified in the stove manual to the nearest combustible material. See our article Distance to Combustibles.

Stove in a Wooden Building

Most sheds and garages are compatible with wood burning stoves and, usually, if not attached to the main house and not "habitable" then no signing-off or permission is required. It's easiest to install them in outhouses that have wood or metal roofs. If your shed has a glass or plastic roof, then it can be more challenging to install the flue pipe and chimney (see our article about stoves in a conservatory).

Regarding permissions or certificates you do not need one if the property is not "habitable".

Installing the Stove

  1. First, you choose the location. 
  2. Then a heat resistant surface is placed (the hearth), if there isn't already one. The stove is placed on the hearth.
  3. Next, heat shields are placed on any combustible walls near the stove to protect them from getting too hot.
  4. A hole is made in the roof (or wall) for the flue pipe and chimney which is then constructed. 
  5. Finally, the hole is sealed back up around the flue.

Easy peasy! Okay there's a few things to think about - but it is not rocket science.

Distance from Combustibles

Any vertical combustible surfaces near your stoves should be protected with a heat shield. This is a non-combustible material that will protect the roof and walls of your shed. Heat shields are made from non-combustible materials, and they are fitted with a small air gap between the wall and the shield.

Depending on the location of your stove, and the layout of your shed, you may need shields at both the back and side of the stove.

How to create a heat shield? See our article Distance to Combustibles.

What About a Hearth?

Choose any non-combustible slab 84cm wide minimum and 12mm thick minimum* Ensure that there is enough room to have your stove on the slab with enough of an air gap behind (see Distance To Combustibles). You should also have a minimum 30cm in front of the stove to catch any hot fuel that may escape when opening the door. A slab 84cm x 84cm is almost always plenty (try the outdoor yard at your local builder's merchants or lay down a sheet of Hardiebacker board and tile on top of it).

The following image shows a good hearth.

*Please choose a stove that is allowed to be placed on a 12mm hearth or you have to have 125mm thickness of hearth!

Read more about hearth regulations.

Find Out More

Get in touch for free, friendly advice, more information or to book your stove assessment by filling out our contact form. We'll respond quickly by phone or email.  

Useful Links

Lots of useful articles in our Stovefitter's Manual

In particular:

Can I fit my own stove? (if property not being lived in and separate to main dwelling then no Building Control permissions required e.g. Home Office, Garden Shed etc.)

Distance to Combustibles and Heat Shields

Hearth design and materials

Read our Full Installation Guide here

Best small wood burning stoves for a shed/garage

All of these stoves have been tested by us and are the best of the bunch when it comes to heating small spaces. See also this article for more.

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Videos

Delivery Promise

We offer 14 days from delivery to report any courier damage to your parts. If your item is damaged by the courier we will replace or refund as desired.

£ PRICE MATCH £

We will happily strive to match any price you may have from any other supplier as long as the other supplier has it in stock.
Offered an "ex-display" or "shop soiled"? We will strive to offer you a new stove for the same price.

Already have a chimney? You need 1. Stove 2. Liner 3. Fitting Pack 4. Chimney closure plate (Hardiebacker board from Builder's merchants or galvanised sheet).That's it!
No chimney? Check out our shed kits or let us design your clip-together chimney design - easy peasy.

Julian Patrick, author of the Stovefitter's Manual

Stovefitter's Warehouse is owned and managed by Julian Patrick, blogger and author of The Stove Fitter's Manual. Julian was previously a full-time installer of wood-burning stoves (including solid fuel heating systems). He laid down the tools in 2013 to write his stove manual and open a small shop in North Wales (the Wood Stove Hut, soon to grow into The Stovefitter's Warehouse).

More info about the company and Julian's team here