Credit: godiniauxarchitecte
Metalfire Ultime D Wood Burner Fireplace Three Sided
- Closed three-sided wood-burning fireplace - a panoramic log fire viewed from across the room
- 2 made-to-measure models: 800 and 1050mm wide
- 16.1-19.8kW at up to 84% efficiency - Ecodesign 2022, A+ energy label
- Dynamic triple-air combustion; made to measure in Belgium
The Metalfire Ultime D Wood Burner Fireplace 3-Sided is the most open wood fire in the range: frameless glass on the front and both ends, giving a panoramic view of the log fire that works as a peninsula or island centrepiece. It is a closed, room-sealed appliance with a vertical lift door, made to measure in Belgium in two models - 800 and 1050mm wide.
Output runs from 16.1 to 19.8kW at efficiencies up to 84%, with an A+ energy label and full Ecodesign 2022 compliance. Dynamic combustion feeds primary, secondary and tertiary air through adjustable stainless steel baffles, keeping all three glass faces clear. An external air connection makes the fire suitable for low-energy and passive houses, and the Easy-Clean door retracts for simple glass maintenance. An optional spark screen or DualMotion+ electric lift allows open-fire viewing in safety.
- Free delivery over £500
- 4.8 Google Reviews Score
- Expert Installation Available
What Makes The Metalfire Metalfire Ultime Wood Burner Fireplace Exceptional
Dynamic Combustion
Primary, secondary and tertiary air supplies with adjustable stainless-steel baffles keep the burn clean and efficient. The glass stays clearer, the fuel goes further.
Ecodesign 2022
Every Ultime D meets the strictest European standard for closed wood burning - Ecodesign 2022 compliant, EN 13229, CE certified. Compliance built in, not bolted on.
Passive-House Ready
Room-sealed, airtight construction with an external air connection - the fire draws combustion air from outside, not from your room. Approved for low-energy and passive homes
Made to Measure
Built to order, not off a shelf - custom sizes, 10mm solid steel finishing frames, interior linings from cast iron to ceramic concrete-look. You want it, they create it
Technical Specifications
Every dimension, every material choice, every specification has been considered. Built to exacting standards for those who demand excellence.
Engineered for Living — The Metalfire Ultime Wood Burner Fireplace
A closed wood fire should be as easy to live with as it is to look at. The Ultime D's door and screen systems handle the daily rituals - loading, cleaning, open-fire viewing - with quiet Belgian engineering.
Sliding Door System
The glass door slides smoothly upwards for lighting and loading, the balanced mechanism taking its full weight. Effortless, one-handed, every day.
Easy Clean Door System
The door retracts on corner and three-sided models and tilts forward on the Front, so the glass cleans quickly from both sides. A clear view of the fire, kept simple.
Spark Screen
An optional mesh screen that keeps sparks and embers where they belong - extra peace of mind with children and pets near the glass. Available in Black, Maple Gold or Terracotta.
Dual Motion Plus
The optional electric lift system operates the glass door and spark screen independently - enjoy the fire open, protected by the screen, at the touch of a button. Quiet, safe, effortless.
TECHNICAL SPECIFICATIONS
The different Models available for the Metalfire Ultime D Three-Sided
MF 800-50 WHE 3S V20
MF 1050-50 WHE 3S V20
CHOOSE YOUR FINISH
One fire, three colours, five finishes
Select a colour to see the different finishes available
Standard Finish
Original Finish
Design Finish
Round Finish
Triangle Finish
Standard Finish
Original Finish
Design Finish
Round Finish
Triangle Finish
Standard Finish
Original Finish
Design Finish
Round Finish
Triangle FinishMetalfire Ultime D Three Sided Wood Fireplace
A closed, room-sealed double-sided wood-burning fireplace set into a dividing wall - one fire, two rooms. 4 models up to 25.2kW, Ecodesign 2022 compliant, made to measure in Belgium.
Watch the Metalfire Ultime D Burn
A Panoramic Log Fire
Glass on the front and both ends gives an uninterrupted view of real flames from almost anywhere in the room - a true island centrepiece.
Clean, Powerful Heat
Up to 19.8kW at 84% efficiency - dynamic triple-air combustion keeps all three glass faces clear while the convection chamber warms the room.
Effortless to Live With
The balanced lift door rises for loading and tilts forward for cleaning. Add the spark screen or DualMotion+ electric lift, and the fire can be enjoyed open, safely.
Why Choose Marlow
Expert Consultation
Our specialists guide you through every step, from selection to installation.
Premium Collections
Curated selection of the finest fireplaces from leading manufacturers.
Trusted Installation
Certified professionals ensure safe, compliant installation every time.
Lifetime Support
We're here for you long after installation, with maintenance and warranty support.
Frequently Asked Questions
What is the Metalfire Ultime D Wood Burner Fireplace 3-Sided?
The Metalfire Ultime D Wood Burner Fireplace 3-Sided is a closed, room-sealed wood-burning fireplace with frameless glass on the front and both ends - a panoramic log fire viewed from across the room. It is made to measure in Belgium in two models, with outputs from 16.1 to 19.8kW.
What sizes does the Metalfire Ultime D 3-Sided come in?
The Metalfire Ultime D 3-Sided comes in two widths - 800 and 1050mm - with glass on the front and both ends. Your installer will help match the size to the setting.
How much heat does the Metalfire Ultime D 3-Sided produce?
The Metalfire Ultime D 3-Sided produces between 16.1 and 19.8kW of direct heat depending on the model, at efficiencies of 82-84% - enough to heat large, open-plan rooms as a primary heat source.
Is the Metalfire Ultime D 3-Sided Ecodesign compliant?
Yes. The Metalfire Ultime D 3-Sided meets Ecodesign 2022 standards for closed wood burning, carries an A+ energy label and is certified for the UK and European markets, with low dust and CO emissions.
Can the Metalfire Ultime D 3-Sided be used in a passive house?
Yes. The Metalfire Ultime D 3-Sided is a room-sealed appliance with an external air connection (2x150mm), drawing combustion air from outside rather than from the room - suitable for low-energy and passive houses.
Where can a 3-sided wood burner fireplace be installed?
A 3-sided wood fireplace works as a peninsula at the end of a wall or as an island centrepiece in open-plan space - anywhere a suitable chimney or twin-wall flue can be routed. The Metalfire Ultime D 3-Sided is closed and room-sealed, so it is safe and efficient even in busy family rooms.
What flue does the Metalfire Ultime D 3-Sided need?
The Metalfire Ultime D 3-Sided connects to a 250mm flue outlet. As a wood-burning appliance it needs a suitable chimney or twin-wall flue system - your installer will confirm the right route after a survey.
What wood should I burn in the Metalfire Ultime D 3-Sided?
Burn seasoned hardwood at no more than 15% moisture - beech, oak and birch are ideal. Wet or treated wood soils the glass and cuts efficiency, so wood should be dried for two to three years in a ventilated store.
How do you clean the glass on the Metalfire Ultime D 3-Sided?
The Metalfire Ultime D 3-Sided has a retracting Easy-Clean door system - the glass panel slides away so all three faces can be cleaned quickly. Burn dry wood and the dynamic air-wash combustion keeps the glass clearer for longer.
Who installs the Metalfire Ultime D 3-Sided wood fireplace?
A wood-burning fireplace of this size should be installed by a HETAS-registered installer. Our team installs within our local radius, handling survey, flue design and commissioning; further afield we supply UK-wide and advise your installer. Call 01628 290142 to talk it through.
See the Metalfire Ultime D in Action
Contact Marlow for more information
Metalfire Ultime D Wood Burner
Metalfire Ultime D Wood Burner Fireplace
INSTALLED WITH PRIDE
Metalfire Ultime D In homes like yours
Pieter Vanrenterghem
Kamin Koçevar
Marie Lecluyse
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Kamin Koçevar
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Lefebvre Haarden
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Kamin Koçevar
Kamin Koçevar
godiniauxarchitecte
Lefebvre Haarden
Anja VissersInstallation by Bosmans haarden
CafeineWhy Choose the Metalfire Ultime D Three Sied Wood Fireplace
The 3-Sided is for rooms where the fire is the centrepiece from every angle: panoramic glass, up to 84% efficiency, and Ecodesign 2022 compliance - Belgian engineering at its most open.
- PANORAMIC VIEW FROM THREE SIDES
- UP TO 84% EFFICIENT, A+ RATED
- MADE TO MEASURE
The Metalfire Ultime D Wood Fireplace Collection
Front, Corner, 3-Sided, 4 Sided and Tunnel
Experience Marlow In Person
Nothing compares to seeing our range of appliances up close and interacting with them as you would at home. Visit our Marlow showroom in Buckinghamshire, to go through your ideas and discuss your options.
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