Continuous flow gas water heaters – rusting of metal casing, flue

Continuous flow gas water heaters – wall mounted – rusting of metal casing, flue

Causes

Lack of cleaning

Insufficient original corrosion protection to steel

Very corrosive environment – near the sea or a geothermal area

Listed under: Exterior, metal, steel, gas, water heating, continuous flow water heating, chimneys and flues and fireplaces, walls, durability, corrosion, rust

Cause

Lack of cleaning

Repair

  • for minor rusting, sand off the red rust, apply a zinc rich primer and a metal primer then apply two finish coats
  • institute a regular cleaning programme
  • where rust is severe, source a new casing or flue and replace the existing

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Cause

Insufficient original corrosion protection to steel

Repair

  • for minor rusting, sand off the red rust, apply a zinc rich primer and a metal primer then apply two finish coats
  • where rust is severe, source a new casing or flue and replace the existing

Back to top

Cause

Very corrosive environment – near the sea or a geothermal area

Repair

  • for minor rusting, sand off the red rust, apply a zinc rich primer and a metal primer then apply two finish coats
  • institute a regular cleaning programme
  • where rust is severe, source a new casing or flue and replace the existing

Back to top