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Atag burner bed OSS3/4 natural gas
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Atag burner bed OSS3/4 natural gas S4825600

€ 362.93 incl. VAT

Original spare part Atag. Type: Burner. Application: Boiler / Q25S | vanaf 2005 OSS1. Supplier code: S4825600.

SKU: 8138129 Categories: , Brand:

Price and stock checked on 20 October 2026.

✓ In stock — delivery usually within 3–5 working days
EU delivery from € 12.95 · Shipping & payment

Price incl. VAT. Any delivery costs are calculated in the basket — see shipping & delivery.

Does this fit my appliance?
ApplicationBoiler
Series / modelQ51C and 13 other models
Atag numberS4825600
Article number8138129
Not sure? Search by article or manufacturer number or check with the manufacturer or your installer.
All spare parts for Atag Q51C →
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Atag burner bed OSS3/4 natural gas: original Atag spare part, type: Burner. Application: Boiler (Q25S | vanaf 2005 OSS1). Manufacturer number: S4825600; Instalpunt article number: 8138129.

According to the Atag parts lists, this part fits 14 models, including Atag Q25S | vanaf 2005 OSS1, Atag Q42CR | vanaf 2020 OSS3 and Atag Q42C | vanaf 4-2009 OSS3. The full list is under “Fits”.

In stock: order before 14:00 and it ships the same working day; delivery within the EU usually takes 3–5 working days.

Check the rating plate of your appliance before ordering; if in doubt, ask the manufacturer or your installer. Work on gas-carrying parts must be carried out by a qualified gas engineer.

Product information: Atag burner bed OSS3/4 natural gas S4825600

BrandAtag spare parts
Atag manufacturer numberS4825600
Instalpunt article number8138129
EAN8719638555821
Part typeBurner (All Atag burners · burners of all brands)
ApplicationBoiler
Suitable for14 Atag models (see list)
DeliveryIn stock, delivery in 3–5 working days
Price€ 362.93 incl. VAT
OriginSupplied through the official technical wholesale channel, under Atag number S4825600

Also known as: branderdek, voormengbrander.

Fits 14 Atag models

The part Atag burner bed OSS3/4 natural gas S4825600 is in the official parts list of these Atag appliances. Click a model for the complete parts list and exploded view.

Atag Boiler (12)

Atag Warmtewisselaar (2)

Check the rating plate of your appliance. Not sure whether this part fits? Check with the manufacturer or your installer; with the correct manufacturer number you can order it here directly.

More spare parts for this appliance

Does this fit my appliance?

Enter your appliance type, for example as shown on the rating plate. You will see straight away whether the Atag burner bed OSS3/4 natural gas S4825600 is in the parts list of that model.

Not found? Check the rating plate of your appliance or search by article number. If in doubt, just email info@instalpunt.nl.

For which fault is a Atag burner replaced?

According to the fault code database, these Atag fault codes point to this type of part. Always check first that the code matches the appliance type on the rating plate.

CodeWhat is going on
40Temperature exceeded at the burner flow temperature sensor.
BL 67A Delta-T was detected between flow and return sensor while the burner is not operating. The block is lifted once the Delta-T has disappeared
BL 81Flue gas sensor interrupted after having been connected to the control. Burner is blocked until the flue gas sensor is reconnected
BL 85The control has detected no water flow. Automatic venting cycle is started. If water flow is detected during this cycle, the venting cycle ends and the burner is released.

All Atag fault codes explained

Indicative: the same code can have a different cause depending on the situation. Have work on gas, flue or burner adjustment carried out by a qualified installer.

Frequently asked questions about this item

Does the Atag burner bed OSS3/4 natural gas S4825600 fit my appliance?
This part is in the parts list of 14 Atag models, including the Q25S | vanaf 2005 OSS1, Q42CR | vanaf 2020 OSS3, Q42C | vanaf 4-2009 OSS3, Q51CR | vanaf 2020 OSS3. The model type is on the rating plate of your appliance. Use the “Does this fit my appliance?” search box on this page to check your model. If in doubt, ask the manufacturer or your installer.
What is the delivery time for the Atag burner bed OSS3/4 natural gas S4825600?
This item is in stock. Ordered before 14:00, it ships the same working day and usually arrives within three to five working days.
Can I return this item?
Yes, as a consumer within 14 days of receipt. You may unpack and inspect the item; for items that have been installed, connected or used (such as circuit boards) we deduct the diminished value. How to register your return is explained on returns.
What does shipping cost?
Shipping costs € 12.95 to Austria, Denmark, Italy, Spain and Sweden and € 16.95 to other EU countries. In-stock items ordered before 2 pm are dispatched the same working day; delivery usually takes 3–5 working days. Details: Shipping.
I have a fault code, which part do I need?
Look up the code in the fault code finder: per brand and appliance it shows what the code means and which part goes with it. If the code is listed with this part, the part belongs to that fault.

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