KALVIS K-4CN 11kW heating boiler-stove, RAL8011

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KALVIS K-4CN is a solid-fuel central-heating boiler-cooker designed for space heating and cooking. The official KALVIS K-4C specification gives a nominal output of 11 kW, while its compact construction makes the appliance suitable for relatively small rooms.

The boiler-cooker features a wide firebox door and a large 43-litre fuel chamber. Maximum wood-log length is 40 cm, while a single fuel load can burn for up to 6 hours, depending on fuel type, moisture content, outdoor temperature and other operating conditions.

The primary fuel is wood logs. KALVIS also permits coal, waste wood, peat briquettes and sawdust briquettes. Firewood with a moisture content exceeding 25% is not recommended.

Efficiency when firing wood logs is 70%, while boiler water volume is 33 litres. The upper part incorporates a cast-iron cooking plate with rings and two cooking positions. The construction also includes a heat-exchanger cleaning cover, flue and draught damper, ash drawer and fire grates.

With sufficient chimney draught, the appliance can also be connected to a heating wall. The armrest can be installed on either side. KALVIS provides a 4-year warranty for the boiler body.

Main advantages

• Space heating and cooking in one appliance
• Nominal output 11 kW
• Compact construction
• Suitable for central-heating systems
• Wide firebox door
• Large 43 l fuel chamber
• Maximum log length 40 cm
• Burn time up to 6 hours
• Efficiency 70%
• Two cooking positions
• Cast-iron cooking plate with rings
• Several permitted solid fuels
• Heating-wall connection possible
• Armrest can be mounted on either side
• Easy servicing and cleaning
• 4-year boiler-body warranty.

Technical information

1. Cast iron stove with hoops

2. Heat exchanger cleaning cover

3. Flue and flue damper

4. Heat exchange compartment

5. The ash removal cover is installed

6. Ash drawer

7. Grid

8. Guardrails