Atmos Sibral Insulation for Small Door - Thick

Product detailed description

- for the lower door of DCxxS boilers with a ceramic roof in the combustion chamber - i.e. for DC18S, DC22S, DC25S, DC30SX, DC32S, DC40SX, DC50S boilers

- for the upper door of DC18S, DC22S, DC25S, DC30SX, DC32S, DC40SX, DC50S, DC70S, DC15GS, DC20GS, DC25GS, DC32GS, DC40GS, DC18GD, DC25GD, DC30GD, DC40GD, DC50GD, DC18SP(L), DC25SP(L), DC30SPX(L), DC32SP(L) boilers

- for the lower door of boilers converted to pellets - i.e. for DC18S converted to pellets (only if the roof is in the lower chamber), DC22S converted to pellets, DC25S converted to pellets, DC30SX converted to pellets, DC32S converted to pellets, DC40SX converted to pellets, DC50S converted to pellets

- for the middle door of three-chamber boilers that have a ceramic roof in the middle chamber

Original Sibral Insulation for the Small Door, Atmos S0261:

• Thickness: 42 mm
• The package includes 2 washers and 2 M6x45 mm screws

Note:
If you need to replace the Sibral door lining on your boiler, you will likely also need to replace the sealing cord located in a separate groove around this lining. You can order the sealing cord for the small door here: 18x18 sealing cord for the small door

Frequently asked questions

• How do I choose the right output for a solid-fuel boiler? Base your choice on the calculated heat loss of the heated building; for wood/coal boilers also consider that the boiler burns for several hours at essentially constant output during a single load - which is why it's common practice to add a buffer (accumulation) tank to the boiler, storing surplus heat for later use instead of having to inefficiently throttle the boiler.
• What else do I need to install this boiler? Besides the boiler itself, the system usually requires: a buffer (accumulation) tank of adequate volume, a circulation pump (often already fitted with a built-in Laddomat or thermoregulatory valve against low-temperature corrosion of the boiler), a safety valve, an expansion vessel, and a flue/chimney with sufficient draught matching the boiler's output - you'll find the exact chimney draught values in the technical parameters above.
• What fuel is suitable, and what isn't? Use only fuel recommended by the manufacturer for the given model (typically split logs of a defined length and moisture content, or brown-coal briquettes or coal depending on the boiler type) - unsuitable or overly damp fuel reduces efficiency, increases tar and deposit build-up, and can damage the boiler.
• What about chimney inspection and legislation? Before putting the boiler into operation, and regularly during its use (typically once a year for solid fuels), the chimney must, by law, be inspected/cleaned by an authorised chimney sweep - without the relevant inspection certificate, an insurance claim in the event of a fire may also be disputed.
• How much maintenance does the boiler require? This usually includes regularly removing ash and cleaning the heating surfaces/flue-gas passages of soot (interval depending on intensity of use, typically on the order of weeks), plus a thorough annual inspection including seals and the chimney.
• Can I install the boiler myself? The actual placement and connection of the boiler to the heating system, chimney and safety components should be carried out, or at least professionally checked, by a heating technician - this is an appliance with an open flame, high temperatures and pressurised components, where a connection error can be a safety risk.