heat exchanger replacement

The heat exchangers below are 1:1 replacements for the APV OHC35

Fits directly without modifying your pipework — delivered quickly from our own stock.

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Installers and service companies order from their own net price list once their business account has been approved.

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UNEX PBU11-10 — replacement for APV OHC 35/10 EE

APV SPX APV OHC 35/10 EE can be replaced by UNEX PBU11-10

UNEX PBU11-10

In stock — fast delivery

1:1: same port-to-port dimensions (281 × 72 mm) and connection G1" external thread

UNEX PBU11-14 — replacement for APV OHC 35/14 EE

APV SPX APV OHC 35/14 EE can be replaced by UNEX PBU11-14

UNEX PBU11-14

In stock — fast delivery

1:1: same port-to-port dimensions (281 × 72 mm) and connection G1" external thread

UNEX PBU11-20 — replacement for APV OHC 35/20 EE

APV SPX APV OHC 35/20 EE can be replaced by UNEX PBU11-20

UNEX PBU11-20

In stock — fast delivery

1:1: same port-to-port dimensions (281 × 72 mm) and connection G1" external thread

UNEX PBU11-24 — replacement for APV OHC 35/24 EE

APV SPX APV OHC 35/24 EE can be replaced by UNEX PBU11-24

UNEX PBU11-24

In stock — fast delivery

1:1: same port-to-port dimensions (281 × 72 mm) and connection G1" external thread

UNEX PBU11-30 (4x G5/4") — replacement for APV OHC 35/30 AE

APV SPX APV OHC 35/30 AE can be replaced by UNEX PBU11-30 (4x G5/4")

UNEX PBU11-30-5/4

In stock — fast delivery

1:1: same port-to-port dimensions (281 × 72 mm) and connection G5/4" external thread

UNEX PBU11-30 — replacement for APV OHC 35/30 EE

APV SPX APV OHC 35/30 EE can be replaced by UNEX PBU11-30

UNEX PBU11-30

In stock — fast delivery

1:1: same port-to-port dimensions (281 × 72 mm) and connection G1" external thread

UNEX PBU11-34 (4x G5/4") — replacement for APV OHC 35/34 AE

APV SPX APV OHC 35/34 AE can be replaced by UNEX PBU11-34 (4x G5/4")

UNEX PBU11-34-5/4

In stock — fast delivery

1:1: same port-to-port dimensions (281 × 72 mm) and connection G5/4" external thread

UNEX PBU11-34 — replacement for APV OHC 35/34 EE

APV SPX APV OHC 35/34 EE can be replaced by UNEX PBU11-34

UNEX PBU11-34

In stock — fast delivery

1:1: same port-to-port dimensions (281 × 72 mm) and connection G1" external thread

UNEX PBU11-40 (4x G5/4") — replacement for APV OHC 35/40 AE

APV SPX APV OHC 35/40 AE can be replaced by UNEX PBU11-40 (4x G5/4")

UNEX PBU11-40-5/4

In stock — fast delivery

1:1: same port-to-port dimensions (281 × 72 mm) and connection G5/4" external thread

UNEX PBU11-40 — replacement for APV OHC 35/40 EE

APV SPX APV OHC 35/40 EE can be replaced by UNEX PBU11-40

UNEX PBU11-40

In stock — fast delivery

1:1: same port-to-port dimensions (281 × 72 mm) and connection G1" external thread

UNEX PBU11-50(4x G5/4") — replacement for APV OHC 35/50 AE

APV SPX APV OHC 35/50 AE can be replaced by UNEX PBU11-50(4x G5/4")

UNEX PBU11-50-5/4

In stock — fast delivery

1:1: same port-to-port dimensions (281 × 72 mm) and connection G5/4" external thread

UNEX PBU11-50 — replacement for APV OHC 35/50 EE

APV SPX APV OHC 35/50 EE can be replaced by UNEX PBU11-50

UNEX PBU11-50

In stock — fast delivery

1:1: same port-to-port dimensions (281 × 72 mm) and connection G1" external thread

UNEX PBU11-60 (4x G5/4") — replacement for APV OHC 35/60 AE

APV SPX APV OHC 35/60 AE can be replaced by UNEX PBU11-60 (4x G5/4")

UNEX PBU11-60-5/4

In stock — fast delivery

1:1: same port-to-port dimensions (281 × 72 mm) and connection G5/4" external thread

UNEX PBU11-60 — replacement for APV OHC 35/60 EE

APV SPX APV OHC 35/60 EE can be replaced by UNEX PBU11-60

UNEX PBU11-60

In stock — fast delivery

1:1: same port-to-port dimensions (281 × 72 mm) and connection G1" external thread

UNEX PBU11-70 (4x G5/4") — replacement for APV OHC 35/70 AE

APV SPX APV OHC 35/70 AE can be replaced by UNEX PBU11-70 (4x G5/4")

UNEX PBU11-70-5/4

In stock — fast delivery

1:1: same port-to-port dimensions (281 × 72 mm) and connection G5/4" external thread

UNEX PBU11-70 — replacement for APV OHC 35/70 EE

APV SPX APV OHC 35/70 EE can be replaced by UNEX PBU11-70

UNEX PBU11-70

In stock — fast delivery

1:1: same port-to-port dimensions (281 × 72 mm) and connection G1" external thread

UNEX PBU11-80 (4x G5/4") — replacement for APV OHC 35/80 AE

APV SPX APV OHC 35/80 AE can be replaced by UNEX PBU11-80 (4x G5/4")

UNEX PBU11-80-5/4

In stock — fast delivery

1:1: same port-to-port dimensions (281 × 72 mm) and connection G5/4" external thread

UNEX PBU11-80 — replacement for APV OHC 35/80 EE

APV SPX APV OHC 35/80 EE can be replaced by UNEX PBU11-80

UNEX PBU11-80

In stock — fast delivery

1:1: same port-to-port dimensions (281 × 72 mm) and connection G1" external thread

UNEX PBU11-90 (4x G5/4") — replacement for APV OHC 35/90 AE

APV SPX APV OHC 35/90 AE can be replaced by UNEX PBU11-90 (4x G5/4")

UNEX PBU11-90-5/4

Available on request

1:1: same port-to-port dimensions (281 × 72 mm) and connection G5/4" external thread

UNEX PBU11-90 — replacement for APV OHC 35/90 EE

APV SPX APV OHC 35/90 EE can be replaced by UNEX PBU11-90

UNEX PBU11-90

Available on request

1:1: same port-to-port dimensions (281 × 72 mm) and connection G1" external thread

UNEX PBU11-100 (4x G5/4") — replacement for APV OHC 35/100 AE

APV SPX APV OHC 35/100 AE can be replaced by UNEX PBU11-100 (4x G5/4")

UNEX PBU11-100-5/4

In stock — fast delivery

1:1: same port-to-port dimensions (281 × 72 mm) and connection G5/4" external thread

UNEX PBU11-100 — replacement for APV OHC 35/100 EE

APV SPX APV OHC 35/100 EE can be replaced by UNEX PBU11-100

UNEX PBU11-100

In stock — fast delivery

1:1: same port-to-port dimensions (281 × 72 mm) and connection G1" external thread

The APV OHC35 is still widely found in existing heating, cooling and heat pump installations. If yours is due for replacement, the UNEX PBU11 is the 1:1 alternative: the port-to-port dimensions are identical (281 × 72 mm), so the unit fits the existing pipework without modifications or extra adapters. The PBU11 is available with G1" male thread or G5/4" male thread; choose the variant that matches the connections of your current OHC35. It is a brazed plate heat exchanger with AISI 316L stainless steel plates, copper brazed, available from 10 to 100 plates. The APV OHC 35/60 EE, for example, corresponds to the PBU11-60. Most versions of the PBU11 are in stock in our warehouse in Oosterhout (the Netherlands), so we can nearly always deliver quickly. Look up your type number in the table above, call +31 (0)162 429 068 for advice or request a no-obligation quote; you will receive a price proposal within one working day.

Frequently asked questions about replacing the APV SPX APV OHC35

Will the UNEX PBU11 fit my APV SPX APV OHC35 without modifications?

Yes. The replacement has the same port-to-port dimensions (281 × 72 mm) and the same connections (G1" external thread, G5/4" external thread), so the existing pipework does not need to be modified.

Is the replacement for the APV SPX APV OHC35 available from stock?

20 of the 22 versions are in stock in our warehouse in Oosterhout, the Netherlands, and are delivered quickly. The other versions are available on request.

Which plate counts are available?

The replacements are available from 10 to 100 plates, in 22 versions. Choose the version with the same plate count as your current APV SPX APV OHC35.

What does it cost to replace a APV SPX APV OHC35?

Request a no-obligation quote; you will receive pricing within one working day. Call us for expert advice: +31 (0)162 429 068.

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Response within one working day

Heat exchanger news, once a month

New series, replacement options and technical articles. No offers, no drip campaigns.

You will first receive a confirmation email. How we handle your data is described in our privacy policy.

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