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Why is HZZK Different from Other Zig Zag Kiln Technologies?

The Habla Zig-Zag Kiln has a standardised core design and operational features which are completely unique and different to all other kilns (including all other zig-zag designs) that operate in developing nations today.

The authentic HZZK as conceived and constructed by the inventor of arch-less zig-zag kilns, Alois Habla, implements his proven and versatile zig-zag formula. The technology has demonstrated unsurpassed energy efficiency and emission results.

  • Efficient use of fuel reducing energy consumption, using high, controlled temperatures.
  • The movement of the fire through stationary bricks, using less energy. As opposed to, the tunnel kiln, which uses energy to move bricks through a stationary fire zone.
  • Efficient firing process through the use of a long fire zone, rapid airflow and unique components.
  • The excellent control of the fire and the low brick setting height. HZZK is ideally suited to fire perforated bricks and thin-walled hollow large clay blocks. This conserves topsoil, minimises land degradation and reduces energy requirements for the production of bricks and clay products.
  • Almost complete combustion due to high, controlled temperatures.
  • Efficient use of generated heat, which is recycled in a continuous process, using a unique heat recovery process.
  • Significant efficiencies in drying and cooling of bricks.
  • Small construction footprint that can be quickly built with less masonry.
  • Long fire zone enabling almost complete fuel combustion and fuel efficiency.
  • Roof – offering significant workforce and economic benefits.
  • No tall chimney – minimising fuel wastage and workplace pollution.
  • Scalable operating modes either continuous or semi-continuous.
  • Power source flexibility.
  • Easily mechanized technology.

The HZZK Difference: a Positive Impact on Workers

  • Improves health outcomes of all workers and communities.
  • Promotes safe, sustainable work practices and the dignity of all workers.
  • Uses and upgrades skills of existing workforce whilst maintaining employment.
  • Significantly reduces GHG emissions, CO2 and short-lived climate pollutants (SLCP’s) particularly Black Carbon (soot).
  • Improves agricultural outcomes, locally and regionally.

A Key HZZK Difference: Improved Economics

  • Significant fuel savings, increase profits.
  • Production of consistent, quality, saleable bricks increases profits.
  • Construction costs are lower.
  • Maintenance costs are lower.
  • The payback period is short.
  • Carbon credit generation is possible.
  • Reduces annual foreign exchange expenditure on imported coal for brick firing. Nepal spends a reported US$153.7 million p.a on coal.