Stoves and fireplaces
Water-bearing stove
Compact boiler B4 Flat
Product benefits:
- Heat for living space and house heating system
- Energy-efficient use of fuel
- Combination with PV system, solar thermal or heat pump possible
- Durable hydraulic components
- Pleasant and long-lasting radiant heat
- Durable insert made of steel
- Customisable heat storage options
- Custom design by skilled craftsmanship
- Generous view of the fire from one side
- Ideal for modern living spaces with clean, linear architecture
Main features:
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Heat storage and heat release evenly over several hours
Transfers heat to the heating circuit and supports the central heating system
Releases heat quickly and directly into the room as warm air
Automatically controls the combustion process for efficient and clean heating
Choice of mounting frame or door frame to match any interior style
Supplies the stove with combustion air from outside – ideal for modern, airtight buildings
Optional left or right door hinge position – flexible to plan
- Water-bearing
Technical data
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BRUNNER Water-bearing stoves
Is there anything more convenient than a water-bearing tiled stove from BRUNNER? It becomes the centerpiece of your living space, providing pleasant radiant heat while also producing hot water for your home. Tiled stoves meet the fundamental need for warmth. And if you want to heat not just the main room but additional areas of the house, water-bearing tiled stoves offer many advantages.
FAQ Water-bearing stoves
- What is the difference between a water-bearing system stove and a water-bearing system fireplace?
Water-bearing system fireplaces feature large viewing windows and emit plenty of radiant heat directly into the room. They heat up quickly and create a strong fire atmosphere – ideal for larger living spaces or new builds, where excess heat is transferred to the heating system.
Water-bearing system stoves, on the other hand, focus on heating water generation. Up to 70% of the heat is transferred into the heating system – perfect when the stove is intended to actively contribute to heating the building and relieve the central heating system.
- How much heat does a water-bearing stove deliver to the buffer tank?
Depending on the design and operating mode, around 50–70% of the generated energy is transferred into the water. The rest is released as radiant heat through the glass front and stove cladding. This targeted distribution makes operation particularly efficient, as surplus energy is not wasted.
- What are the advantages of water-bearing stoves?
Efficiency increase: By diverting heat to water heating, more than 50% of the generated energy can be fed directly into the heating system – particularly useful in low-energy houses.
Lower heating costs & CO₂ savings: Wood as a renewable resource reduces the use of fossil fuels and lowers heating costs.
Hybrid operation possible: In combination with a heat pump and buffer tank, the system can relieve the main heating during transition periods and even serve as the primary heat source in an emergency. - How does a water-bearing stove work?
In a water-bearing stove, the firebox has a double wall. The space in between contains a water jacket or heat exchanger. Excess heat from the flue gases is used to heat water for the heating system. This heated water is stored in a buffer tank and can support both space heating and domestic hot water.
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