DRU Art 3 Balanced Flue Gas Wall Heater

Timeless Design, Proven Performance

For decades, DRU balanced flue wall heaters have been the go-to choice across the UK where reliable, independent heating is required. The Art 3 Balanced Flue Gas Wall Heater continues this proud heritage, combining DRU’s proven engineering with practical design that complements both modern and traditional interiors. Finished in a choice of DRU’s classic beige enamel coating or white with a special corrosion protection, the Art 3 heater features a cool-touch controls and a clean, unobtrusive appearance that blends easily into any environment, from church vestries and classrooms to conservatories and workshops.

Weighing just 16kg, the Art 3 is lightweight and simple to install on almost any external wall. Its flue system, comprised of two concentric tubes, ensures safe and efficient operation by drawing fresh air from outside through the outer pipe while simultaneously expelling combustion gases through the inner pipe. This sealed system guarantees safe, clean burning without drawing air from the room, maintaining optimal indoor air quality.

Quiet, Natural Convection Heating

The DRU Art 3 Wall Heater utilises natural convection to circulate warmth evenly and quietly throughout the space, with no fans or electrical components required. This means whisper quiet performance and no reliance on electricity, a major advantage in rural areas or locations prone to power cuts. The heater reaches full operating temperature within 30 minutes, providing instant comfort and consistent warmth.

The design delivers 85% convection and 15% radiant heat, striking the perfect balance between fast, circulating warmth and a gentle, radiant glow that keeps the space feeling cosy. For those who require additional airflow, the DRU Diamond Series offers models with fan assisted heating, but for most installations, the Art 3’s convection system is more than sufficient.

Efficiency, Reliability, and Low Maintenance

The DRU Art 3 boasts up to 78% efficiency, ensuring minimal energy waste and reduced running costs compared to electric or portable heaters. The Ceramet-coated heat exchangers inside the unit are engineered for exceptional durability, helping to prevent corrosion and prolong the life of the appliance.

Because the heater operates using sealed combustion and natural convection, there’s no risk of freezing, no need for anti-corrosive additives, and virtually no maintenance required. It’s a true “fit and forget” solution, ideal for public buildings, rental properties, and other settings where reliability and ease of use are key.

Flexible Installation and Safe Operation

Installing the DRU Art 3 Wall Heater is straightforward and flexible. It can be fitted using either a Telescopic Balanced Flue Kit (adjustable from 250mm to 440mm) or a Rigid 600mm Flue Kit for thicker wall constructions. It accommodates wall thicknesses ranging from 70mm to 980mm, ensuring compatibility with various building types, from older solid walled properties to modern insulated structures.

The integrated modulating thermostat with capillary sensor ensures steady temperature control, maintaining a consistent level of comfort without constant adjustment. While the heater does not require an electrical connection, it can be linked to an automatic time clock for scheduled operation if desired.

An external safety guard is available to prevent contact with the terminal, offering added peace of mind in schools, places of worship, or public spaces.

A Smarter Alternative to Electric Heating

Compared to electric wall heaters, the DRU Art 3 offers significant benefits. It’s cheaper to run, provides faster heat on demand, and works completely independently of the mains power supply. Gas is a clean-burning fuel, producing no fine dust or soot, making it an environmentally responsible choice that doesn’t compromise on comfort or performance.

With its larger heat output and exceptional efficiency, the Art 3 is the perfect solution for medium-sized rooms or as a supplementary heater in larger spaces. Whether you’re upgrading from a discontinued Baxi Brazillia or looking for a reliable, long-term heating option, the DRU Art 3 Wall Heater delivers proven performance backed by decades of Dutch engineering excellence.

Key Features

• Balanced Flue Wall Heater – safe, sealed combustion using outside air
• 3.5kW Heat Output (Natural Gas) / 3.1kW (LPG)
• Up to 78% Efficiency – economical and environmentally friendly
• Quiet Natural Convection Heating – no fans, no electricity required
• Ceramet-Coated Heat Exchangers
• Cool-Touch Handle & Beige Enamel Finish – safe, durable, and stylish
• Built-In Modulating Thermostat – for precise temperature control
• Optional Time Clock Connection – for automatic operation
• Compatible with Natural Gas or LPG – LPG conversion kit
• Flexible Flue Kits Available – telescopic or rigid options for wall thicknesses 70mm–980mm
• Optional External Terminal Guard – added safety for public spaces
• Ideal for Homes, Churches, Schools, and Offices
• 2 Years Manufacturers Warranty