
Stove and chimney FAQs
Wood burner questions, answered.
Straightforward answers on installing, choosing, sweeping and running a wood burning stove, from a HETAS Registered Installer based near Market Harborough.


Fully insured. HETAS certificate issued on completion.
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What would you like to know?
Choose a topic below. If your question isn’t covered, call us on 07727 080552 or email info@cosylivingstoves.co.uk and we’ll be happy to help.
Installation
Installing a wood burner
What to expect when you have a wood burning stove fitted, from Building Regulations to flue liners.
Installing a wood burning stove has to comply with Building Regulations. Because we are a HETAS Registered Installer, we can certify the work and notify it for you, so you won’t need to make a separate building control application.
Most installations take between one and five days. Replacing an old stove with a new one is usually the quickest job, while work that involves altering the fireplace, laying a new hearth, relining the chimney or fitting a new flue takes longer. We’ll give you a likely timescale after your free home survey and confirm your dates once the quotation is agreed.
Yes. Where there is no existing chimney, we can fit an insulated twin wall flue system, either inside the house or running up an external wall, so a stove can go into a room that has never had a fireplace.
A flue liner stops flue gases escaping through ageing brickwork and gives your stove the right flue diameter to work properly. We supply and fit both flexible and rigid flue liners, and we’ll check at your survey whether your chimney needs one.
Sometimes. A stove needs enough clearance around it for air to circulate safely, so the opening may need adapting. That can mean exposing and cleaning up the brickwork, replastering, or fitting a lintel or fire surround. We’ll explain exactly what’s needed at your home survey.
Only occasionally. It depends on how tall your chimney stack is and how easy it is to reach. We’ll let you know at your survey if scaffolding is needed for your property.
Yes, we offer installation only as well as supply and installation. We’ll check at your survey that the stove is suitable for your room and your chimney or flue. If you live outside our main area, a survey fee may apply when the stove hasn’t been bought from us.
Richard Randall, a HETAS Registered Installer, handles every survey and installation personally through his company, Richard Randall Woodburners Limited. We never subcontract, so you deal with the same person from your first enquiry through to your certificate.
Surveys and quotations
Your free home survey
How our surveys and quotations work, and where we cover.
Yes. Within our main area, your home survey and written quotation are free, with no obligation to go ahead. Further afield, a survey fee may apply unless you are buying your stove from us.
We visit your home to measure the fireplace opening and check the chimney. We’ll talk through stove sizing and flue options, and look at any hearth requirements or building work that may be needed. Afterwards you’ll receive a written quotation setting out the recommended works and costs.
Not at all. You don’t need to have chosen a stove, hearth or fireplace before getting in touch. We’ll go through the options at your free home survey, taking into account your property, the styles you like and your approximate budget.
We’re based in Wilbarston, near Market Harborough, and mainly cover Market Harborough, South Leicestershire, North Northamptonshire and the surrounding villages, including Kibworth, Great Bowden, Lutterworth, Leicester, Corby, Kettering, Desborough, Rothwell, Uppingham and Oakham. If you’re not sure whether you’re in our area, just ask.
Installation is carried out under a separate contract with Richard Randall Woodburners Limited, alongside any order you place for your stove or hearth. Your written quotation sets out the recommended works and costs clearly before anything goes ahead.
We aim to reply to calls and emails within one working day. During busier periods please bear with us, we will get back to you. You can reach us on 07727 080552 or at info@cosylivingstoves.co.uk.
Certification and regulations
HETAS certification and the rules
The paperwork you’ll receive, and the regulations that apply once your stove is in.
A HETAS certificate of compliance confirms your stove has been installed by an approved installer in line with Building Regulations. Keep it somewhere safe, as your home insurer may ask to see it and you’ll need it if you ever sell your property.
Once your installation is complete, we register the work with HETAS electronically where it is notifiable. Your certificate of compliance then arrives by post, sent direct from HETAS.
Yes, but extra rules apply. In a Smoke Control Area you’ll need a DEFRA exempt stove and must burn suitable fuel. We’ll check whether your property falls within one at your survey and recommend appliances that meet the rules.
Yes. Keep a working carbon monoxide alarm in the room with your stove and test it regularly. We check your alarm as part of every stove service and chimney sweep.
Please get in touch using the details on our Contact page and we’ll arrange to look into it. If you’re still not happy, HETAS publishes consumer complaints advice setting out the further support available to you.
Choosing a stove
Choosing the right stove
Sizing, stove types, brands and hearths, so you can choose with confidence.
Multiply your room’s length, width and height in metres to find its volume in cubic metres. Divide that figure by 14 for a room with standard insulation, 10 for an older or draughty room, or 24 for a modern, well insulated new build. The result is the output you need in kW. We’ll confirm the right size at your free home survey.
Not necessarily. The right stove is one matched to your room’s size and ceiling height and to the age and construction of your property, rather than the one with the highest heat output. We’ll recommend a selection of suitable stoves once we’ve worked out the output you need.
A wood burning stove is designed to burn wood only, unless the manufacturer offers an approved conversion. A multi-fuel stove can also burn smokeless fuels that are specifically approved for it. Traditional house coal should never be burned in either. We’ll help you decide which suits the way you plan to use your stove.
We supply and fit stoves from Charnwood, Morsø, Henley and Dunsley, established manufacturers offering traditional and contemporary designs in a range of sizes, outputs, colours and finishes. If you’ve seen another stove you like, let us know and we’ll advise whether it suits your property.
We can supply off-the-shelf granite, slate and glass hearths, or create a raised concrete base finished with a tile of your choice. For something more individual, our local stonemason can template and make a bespoke hearth in granite, slate or Portland stone. Every hearth has to meet minimum size and construction requirements under Building Regulations.
Wood can be a low carbon fuel. The carbon dioxide released when it burns is the same amount the tree absorbed as it grew, so the process is sustainable as long as new trees replace those used. Modern stoves also burn far more efficiently than open fires. Burning dry, locally sourced wood and maintaining your stove keeps emissions down.
It can help. A stove lets you heat the room you’re using rather than relying entirely on your main heating system, and wood fuel is often cheaper than other heating options, although prices vary considerably.
Sweeping and servicing
Chimney sweeping and stove servicing
Keeping your chimney clear and your stove running safely, year after year.
Have your chimney or flue swept at least once a year when you burn wood, and more often if you use your stove heavily. The right interval depends on the fuel you burn and how much you use your stove, so we’ll advise you at each sweep.
We carry out chimney sweeping and stove servicing from March to the end of September. Booking during the season means your stove is ready before the colder months. Call 07727 080552 or email us to arrange an appointment.
We clean the chimney or flue of debris and tar build-up, then carry out a smoke draw test and check the seal on your stove. We also check ventilation, your carbon monoxide alarm and the condition of the chimney pot. We use dust sheets to keep mess to a minimum, and you’ll receive a Sweep Safe certificate confirming the work and our findings.
A stove service replaces perished door rope and fire cement seals, checks the baffles and grates, and tests your carbon monoxide alarm. Worn seals make a stove less efficient and can allow fumes to leak into the room, so regular servicing keeps your stove safe as well as efficient.
Yes. Alongside sweeping, we carry out chimney surveys, repairs and pointing, flaunching repairs, new chimney pots, cowls and bird guards, and the supply and installation of flue liners.
Using your stove
Burning wood and everyday use
Simple habits that keep your stove burning cleanly and safely.
Aim for firewood with a moisture content of 20% or below. A moisture meter lets you check your own logs, and Ready to Burn fuel is already dry enough to use. Wet wood burns poorly, damages your stove and liner, and leaves deposits in the flue.
Blackened glass is usually caused by burning wet wood or running the stove too cool. Most modern stoves have an airwash system that keeps the glass clear when dry fuel burns at the right temperature. If the glass needs cleaning, wait until the stove is completely cool and follow the manufacturer’s instructions.
A slight smell and a little haze during the first few fires is normal. It’s the stove paint curing as it heats up for the first time, and it fades after a few small fires. Keep the room well ventilated and follow the manufacturer’s instructions for running in your stove.
No. A wood burning stove should only burn wood, unless the manufacturer provides an approved multi-fuel conversion. Even in a multi-fuel stove, only burn fuels approved for it, never burn traditional house coal, and avoid burning wood and smokeless fuel together, as this can damage the stove and flue liner.
Never burn treated, painted or contaminated timber, household waste, or wet and freshly cut wood. These produce excess smoke, damage your stove and flue, and increase the risk of a chimney fire. Stick to dry, Ready to Burn wood, or fuels approved by your stove manufacturer.
Still have a question?
We’re happy to talk through anything about your stove, chimney or installation, or to book your free home survey. Call 07727 080552 or email info@cosylivingstoves.co.uk.
We aim to reply within one working day, during busier periods please bear with us, we will get back to you.
