How do I know if this plate heat exchanger is the one for my boiler?

Verify the reference 8705406287 printed and ensure your model is on the list of compatible ones; also compare the connections with the original part. It is a Zilmet piece.

The plate heat exchanger transfers heat to the domestic hot water (DHW).

Is the hot water lukewarm or does it take a long time?

It usually indicates a blocked or scaled heat exchanger.

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 the seals and descale the circuit; compare the number of plates and the connections.

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.

RefurbishedNeckar Plate heat exchanger

Neckar NW24 1 LH AE23 Plate Heat Exchanger Ref. 8705406287

Name: Neckar NW24 1 LH AE23 Plate Heat Exchanger Ref. 8705406287
Brand: Neckar
SKU: IPCNZW24
Price: 30 EUR
Availability: InStock

30 €VAT includedIn stock · 5 units

Plate heat exchanger: refurbished spare part that transfers heat to domestic hot water. Useful if the hot water is lukewarm or takes a long time. Compatible with NW24-1 LH AE23, NW24-1 LH AE31, NW24-1 LH KE23 (ref. 8705406287). 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: 8705406287
Brand: Neckar
Type of part: Plate heat exchanger
Available units: 5 units in stock
Status: Refurbished
Warranty: 1 year
Shipping: 2–4 working days (EU)
Return: 14 days

The same part (ref. 8705406287) equips these models. Verified compatibility; check the reference before purchasing.

Neckar NW24

NW24-1 LH AE23
NW24-1 LH AE31
NW24-1 LH KE23
NW24-1 LH KE31

Junkers NW24

NW24-1LHAE23S28
NW24-1LHAE31S28
NW24-1LHKE23S28
NW24-1LHKE31S28

Junkers ZW23-1 (Euroline)

ZW23-1AE23
ZW23-1AE31
ZW23-1KE23
ZW23-1KE31

Junkers ZW24 (Euroline/Ceraclass)

ZW24AE23S2805
ZW24AE31S2805
ZW24KE23S2895
ZW24KE31S2895

How do I know if this plate heat exchanger is the one for my boiler?: Verify the reference 8705406287 printed and ensure your model is on the list of compatible ones; also compare the connections with the original part. It is a Zilmet piece.
What is it used for?: The plate heat exchanger transfers heat to the domestic hot water (DHW).
Is the hot water lukewarm or does it take a long time?: It usually indicates a blocked or scaled heat exchanger.
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 the seals and descale the circuit; compare the number of plates and the connections.
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.