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The most powerful single-sided Spartherm we offer, this is fire at its most commanding. A remarkable heat output sits behind a design that stays minimal and unfussy, letting the technology, and the flame, speak for itself. Built to warm large, modern, open-plan homes with ease, it turns raw heating power into something quietly beautiful. A bigger fire means a grander flame: more to watch, more to gather around, more warmth to lose yourself in. And with one of Spartherm's signature lift doors, every interaction feels as refined as the fire itself.

Technical
Specifications

DOWNLOAD BROCHURE

INSTALLATION MANUAL

BPIR DECLARATION

This is the most powerful Spartherm single-sided fireplace available here. With a massive 24kW peak heat output, this still minimalist and unfussy design underscores remarkable technology and performance. This fire is capable of heating large, modern, open plan homes. Bigger fire means more flame to watch and more flame to keep you warm. And it has one of those cool lift doors.

VIEWABLE GLASS SIZE

479H x 982 W (mm)

MAX HEAT OUTPUT

24 kW

DUCTED HEAT

Yes

APPLIANCE SIZE

1275 H x 1063 W x 697 D (mm)

DOOR FUNCTION

Elevating (Lift Door)

EFFICIENCY

65.3% Average

FLUE DIAMETER

200mm

Maximised Flame View

The Spartherm XL pairs a large glass front with slim, understated edges to put as much flame on show as possible. With minimal framing to distract from the fire, the full width of the flame becomes the focal point of the room, creating a natural gathering place that draws people together and keeps conversation flowing into the long hours.

Hideaway Lift Door

Utilising unique patented technology, the Spartherm XL features an easy-to-slide lift door that glides up seamlessly and effortlessly into the wall, beautifully blending form with function.

Powerful Heat Output

With large fireboxes and an efficient heat distribution system, Spartherm wood fires deliver an estimated peak heat output of 24kW. That's more than enough to comfortably warm large, open-plan spaces, pushing consistent heat throughout the room rather than concentrating it in one spot. The generous firebox means longer burn times and fewer reloads, so you get sustained, dependable warmth through the coldest nights.

FEATURED PROJECT

Lake Rotoiti House

by EMA Architects

Immersed in native New Zealand bush, Rotoiti Lake House was designed to create a sense of place and permanence – bridging the gap between the natural and the built environment. The Spartherm XL Large Wood Burner is the embodiment of this ethos – creating a home base within the room while also referencing the outside experiences that cultivate the home.

Find a Spartherm
Retailer

Looking to buy an Spartherm fireplace? Our fireplaces are available through a network of trusted retailers at Stoke Fireplace Studio.

Use the interactive map to find your nearest Spartherm retailer – see the fireplace range for yourself and get expert advice tailored to your home or project

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