Flue gas retarder for the lower flue gas chamber, 500mm

Product detailed description

Flue gas retarder S0427, length 500 mm

The code S0427 designates a retarder that is fitted in the lower part of the flue gas chamber of an ATMOS boiler. It is supplied in a length of 500 mm and in the e-shop you will find it among the other spare parts.

Intended for ATMOS boilers

• SX series: DC30SX, DC40SX
• SE series: DC40SE

Before ordering, please check the exact designation of your boiler and compare it with the list of types above.

Frequently asked questions

• How do I choose the right output for a solid-fuel boiler? Start from the calculated heat loss of the heated building, but with wood/coal boilers also bear in mind that during a single load the boiler burns for several hours at essentially constant output - which is why it is common practice to add a buffer (accumulation) tank, which stores the excess heat for later use instead of the boiler having to be throttled down inefficiently.
• What else do I need to install this boiler? Besides the boiler itself, the system usually requires: a buffer (accumulation) tank of suitable volume, a circulation pump (often with a built-in Laddomat or a thermoregulating valve to protect the boiler against low-temperature corrosion), a safety valve, an expansion vessel and a flue/chimney with sufficient draught matching the boiler output - the exact chimney draught values can be found in the technical parameters above.
• What fuel is suitable and what is not? Use only the fuel recommended by the manufacturer for the given model (usually split logs of a defined length and moisture content, or brown-coal briquettes or coal, depending on the boiler type) - unsuitable or too moist fuel reduces efficiency, increases the formation of tar and deposits and can damage the boiler.
• What about the chimney inspection and legal requirements? Before the boiler is put into operation, and also regularly during its use (usually once a year for solid fuels), an inspection/cleaning of the chimney by an authorised chimney sweep is required by law - without the relevant inspection certificate, an insurance claim in the event of a fire may also be disputed.
• How much maintenance does the boiler need? It normally includes regular removal of ash and cleaning of the heating surfaces/flue gas passages of soot (the interval depends on the intensity of use, usually in the order of weeks), and a thorough annual inspection including the seals and the chimney.
• Can I install the boiler myself? The positioning and connection of the boiler to the heating system, the chimney and the safety components should be carried out, or at least professionally checked, by a heating engineer - it is an appliance with an open fire, high temperatures and pressurised components, where a connection error can be a safety risk.