How do I know if this expansion vessel is for my boiler?

Check the reference HE004002563 printed and ensure your model is on the list of compatible ones; also compare the connections with the original part. It is a Hermann piece (vessel manufacturer: Zilmet).

The expansion vessel absorbs the expansion of water when heated.

Does the pressure rise significantly when heating, or does the safety valve trip?

It usually indicates the expansion vessel is discharged.

Which models is it suitable for?

Part shared by various models (see Compatibility). If your model does not appear, send us a photo of the marking and we will confirm it.

Installation and recommendations

Check and recharge the air pre-charge of the expansion vessel.

What does refurbished mean and what coverage does it have?

Part removed from a boiler out of service, inspected and tested. Includes 1-year warranty and 14-day return policy. Delivery within 2–4 working days in the EU.

RefurbishedRenova Expansion vessels

Expansion Vessel Renova Hermann Saunier Duval Micra 23 Zilmet Ref. HE004002563

35 €VAT includedIn stock · 3 units

Expansion vessel: reconditioned spare part that absorbs the expansion of water when heated. Useful if the pressure rises significantly when heating or if the safety valve is triggered. Compatible with Renova Micra 23 E, Renova Micra 23 SE, Renova Micra 24 E (ref. HE004002563). Includes a one-year warranty and delivery within 2–4 working days in the EU.

Consult via WhatsApp

Not sure if it's your part? Send us a photo of the screen printing via WhatsApp and we'll confirm compatibility before you purchase.

Delivery in 2–4 working days

1-year warranty

14-day return

Technical support

Key Data

Reference: HE004002563
Brand: Renova
Type of part: Expansion vessels
Available units: 3 units in stock
Status: Refurbished
Warranty: 1 year
Shipping: 2–4 working days (EU)
Return: 14 days

The same part (ref. HE004002563) equips these models. Verified compatibility; check the reference before purchasing.

Hermann

Renova Micra 23 E
Renova Micra 23 SE
Renova Micra 24 E
Renova Micra 24 SE
Micra 2 24 E
Micra 2 24-30 SE
MicraPlus 24 SE
Micra Condens 26
Renova Habitat
Habitat Plus 23 E
Habitat Plus 23 SE
Habitat2 23 E
Habitat2 24 SE

How do I know if this expansion vessel is for my boiler?: Check the reference HE004002563 printed and ensure your model is on the list of compatible ones; also compare the connections with the original part. It is a Hermann piece (vessel manufacturer: Zilmet).
What is it used for?: The expansion vessel absorbs the expansion of water when heated.
Does the pressure rise significantly when heating, or does the safety valve trip?: It usually indicates the expansion vessel is discharged.
Which models is it suitable for?: Part shared by various models (see Compatibility). If your model does not appear, send us a photo of the marking and we will confirm it.
Installation and recommendations: Check and recharge the air pre-charge of the expansion vessel.
What does refurbished mean and what coverage does it have?: Part removed from a boiler out of service, inspected and tested. Includes 1-year warranty and 14-day return policy. Delivery within 2–4 working days in the EU.

Expansion Vessel Renova Hermann Saunier Duval Micra 23 Zilmet Ref. HE004002563

Key Data

Hermann

Spare Parts Related Boiler Hermann Saunier Duval Micra 23 Zilmet