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“gas boilers south africa”- related faq

  • Should I turn my oil boiler off when my oil tank is being filled? 2019-07-19
    Yes, it is recommended to turn your boiler off whilst the tank is being filled and to leave it off for a short period afterwards of up to 30 minutes. This will ensure that any sediment that has settled on the base of your tank is not stirred up and drawn into your fuel line.
  • How does a fire tube boiler start up when cold? 2019-06-28
    The action of starting up a fire tube boiler for the first time is already a cold start. As a result, the mechanical load in this type of boiler is much greater, as the main characteristic of cold starts is the absence of boiling water and greater stress on the connection and anchorage elements of the boiler. To make this start a bit easier for the boiler, the boiler operator should reduce the burner load to a boiling point.
  • What are steam boilers with a low NOx system? 2019-06-14
    Steam boilers with a low NOx system are specially designed to minimize the environmental impact with the production of dry saturated steam. This type of boiler incorporates a stainless steel economizer with a cross flow integrated within the boiler and that, consequently, allows to reach maximum efficiency.In addition, it has a natural gas burner with low NOx emissions.
  • What is a water tube boiler? 2019-06-06
    Any boiler where the products of combustion flow on the outside of a tube with the heat transfer media on the inside.
  • What is a fire tube boiler? 2019-05-31
    Any boiler where the products of combustion flow on the inside of a tube with the heat transfer media (ex. water, steam, or hot oil) on the outside. The tubes can be orientated vertically, horizontally or at an angle.
  • What conditions are required for the full combustion of biomass-fired boiler fuel on the chain grate? 2019-03-21
    1. Rational air distribution, supply sufficient and rational air by region; 2. Appropriate furnace temperature;3. Suitable air turbulence and mixing in furnace;4. Fuels remain long enough on chain grate and in the furnace;5. Keep a reasonable distance between the fuel hopper and the flame fronts to avoid igniting fuels in the hopper.The biomass-fired boilers are optimally designed according to the characteristics of different biomass fuels. ZOZEN will customize the biomass-fired boiler for ...
  • What's the difference between WNS series gas-fired (oil-fired) boilers and SZS series gas-fired (oil-fired) boilers? 2019-02-12
    1. In terms of boiler body structure, WNS series gas-fired (oil-fired) boilers are fire tube boilers; SZS series gas-fired (oil-fired) boilers are water tube boilers; 2. In terms of boiler working pressure, if the boiler pressure is below 1.6Mpa, the choice is usually the WNS series gas-fired (oil-fired) boiler, if the boiler pressure is above 1.6Mpa, the SZS series gas-fired (oil-fired) boiler may be a better solution.  Some high-pressure boilers also adopted SZS series gas-fired (oil-fir...
  • What are the causes of water attack in the economizer and condenser of a gas-fired boiler? 2018-11-23
    The air in the economizer and condenser has not drained yet when firing. The safety valves of economizer and condenser need to be turned on to exhaust steam. Return pipe valves also need to be turned on, enabling the steam in the economizer and condenser to return to softened water tank. The outlet water temperature is so high that economizer and condenser will have vaporization phenomenon. The outlet water temperature of economizer and condenser need to be controlled. The check valve of the...