Fireplace Inserts
Fireplace Inserts — Transform Your Fireplace. Keep the Atmosphere.
An open fireplace is one of the most beautiful things in a home and one of the least efficient. Up to 80–90% of the heat generated by an open fire disappears straight up the chimney, while cold air is simultaneously drawn in from the rest of the house to replace it. In a cold January, a traditional open fireplace can actually make a room colder, not warmer.
A fireplace insert solves this completely. Installed directly into your existing fireplace opening, it converts a decorative feature into a powerful, controlled heating appliance — without sacrificing the view of the fire, the atmosphere of the hearth, or the character of the room. You keep everything you love about your fireplace. You lose everything that was wasting your money.
At EUStoves we offer a carefully selected range of fireplace inserts from trusted European manufacturers, fully compliant with EU Ecodesign Regulation 2015/1185 and independently certified to European standards — serious heating solutions for homes that already have a fireplace and want to make it work properly.
What You Will Find in This Category
The EUStoves fireplace insert range covers a variety of outputs, sizes, and designs:
• Standard wood-burning inserts for straightforward conversion of existing open fireplaces
• High-output inserts for larger rooms and open-plan spaces requiring significant heat output
• Inserts with water heat exchangers for connecting to central heating systems and radiator circuits
• Double-sided and tunnel inserts for installation between two rooms, heating both simultaneously
• Contemporary and classic designs to complement both modern renovations and period properties
Open Fireplace vs Fireplace Insert — Understanding the Difference
An open fireplace typically operates at 10–15% efficiency — meaning 85–90% of the energy in your firewood is lost. A quality fireplace insert operates at 75–85% efficiency, meaning the overwhelming majority of your fuel's energy ends up as heat in your home rather than in the atmosphere above your roof.
The practical difference is significant. The same quantity of wood that barely heats a room with an open fire will keep it comfortably warm for hours with a properly installed insert. And because the combustion chamber is sealed, the insert does not draw cold air from the room — it brings fresh air in through a dedicated supply, keeping the room warmer and the fire burning more cleanly.
How to Choose the Right Fireplace Insert
Three factors determine which insert is right for your situation:
1. Your fireplace opening dimensions The insert must physically fit inside your existing fireplace. Measure the width, height, and depth of your opening carefully before ordering. Most product pages include minimum and maximum opening dimensions — if you are unsure, contact our team before purchasing.
2. Your heating requirement Output requirements depend on the size and insulation of the space you want to heat. As a general guide, a well-insulated room needs roughly 40 W per cubic metre. Heated area estimates are listed on every product page.
3. Your chimney system All fireplace inserts require connection to a compatible flue liner. In most cases, installing a flexible stainless steel liner inside your existing chimney is necessary to ensure safe and efficient operation — your existing chimney flue alone is rarely sufficient. A qualified installer will assess your chimney and recommend the appropriate liner before installation.
Beyond these three factors, consider:
• Air supply — modern high-efficiency inserts perform best when connected to an external air supply rather than drawing combustion air from the room. This is particularly important in newer, well-sealed homes.
• Fuel — all wood-burning inserts require dry wood with moisture content of 20% or less. Wet wood dramatically reduces efficiency and increases chimney deposits.
• Installation — fireplace insert installation should always be carried out by a qualified professional. Improper installation affects both safety and performance.
Frequently Asked Questions
Will a fireplace insert fit my existing fireplace? Most standard fireplace openings can accommodate an insert, but dimensions vary. Check the minimum and maximum opening dimensions on the product page against your own measurements before ordering. If your fireplace has an unusual size or shape, contact our team for guidance.
Do I need a new chimney liner? In most cases, yes. Inserting a flexible stainless steel liner inside your existing chimney ensures the correct flue diameter, prevents leakage, and protects the chimney structure. Your installer will assess your chimney and advise accordingly. This is a standard part of any insert installation and should be factored into your budget.
Can a fireplace insert serve as my primary heat source? Yes — higher-output models are well suited to primary heating for living rooms and open-plan spaces. Models with water heat exchangers can also contribute heat to a central heating circuit, extending their reach beyond the room where they are installed.
How much more efficient is an insert than my open fireplace? A quality fireplace insert typically operates at 75–85% efficiency. A standard open fireplace operates at 10–15%. In practical terms, the same load of wood will produce several times more usable heat in your room with an insert than without one.
Will I still be able to see the fire? Yes. All inserts in our range feature heat-resistant ceramic glass doors that give a clear, unobstructed view of the fire. The visual experience of the hearth is preserved — the only difference is that the heat stays in the room.
What fuel should I use? All wood-burning inserts in this range require dry, chemically untreated natural wood with a moisture content of 20% or less. Dry hardwood — oak, beech, ash — gives the best performance and the longest burn times.
Already have a fireplace and want to make it work properly? Contact our team — we can help you find the right insert for your opening, your chimney, and your heating needs.