The heat exchangers below are 1:1 replacements for the Funke GPL25
Fits directly without modifying your pipework — delivered quickly from our own stock.
Installer or service company?
Installers and service companies order from their own net price list once their business account has been approved.

Funke GPL25-10-H-30 can be replaced by UNEX PB14-10
UNEX PB14-10
1:1: same port-to-port dimensions (415 × 43 mm) and connection 22,35 mm solder or G1" external thread

Funke GPL25-14-H-30 can be replaced by UNEX PB14-14
UNEX PB14-14
1:1: same port-to-port dimensions (415 × 43 mm) and connection 22,35 mm solder or G1" external thread

Funke GPL25-20-H-30 can be replaced by UNEX PB14-20
UNEX PB14-20
1:1: same port-to-port dimensions (415 × 43 mm) and connection 22,35 mm solder or G1" external thread

Funke GPL25-24-H-30 can be replaced by UNEX PB14-24
UNEX PB14-24
1:1: same port-to-port dimensions (415 × 43 mm) and connection 22,35 mm solder or G1" external thread

Funke GPL25-34-H-30 can be replaced by UNEX PB14-34
UNEX PB14-34
1:1: same port-to-port dimensions (415 × 43 mm) and connection 22,35 mm solder or G1" external thread

Funke GPL25-40-H-30 can be replaced by UNEX PB14-40
UNEX PB14-40
1:1: same port-to-port dimensions (415 × 43 mm) and connection 22,35 mm solder or G1" external thread

Funke GPL25-44-H-30 can be replaced by UNEX PB14-44
UNEX PB14-44
1:1: same port-to-port dimensions (415 × 43 mm) and connection 22,35 mm solder or G1" external thread

Funke GPL25-50-H-30 can be replaced by UNEX PB14-50
UNEX PB14-50
1:1: same port-to-port dimensions (415 × 43 mm) and connection 22,35 mm solder or G1" external thread
Replacing the Funke GPL25 with the UNEX PB14
If you need to replace a Funke GPL25, the UNEX PB14 lets you carry on straight away: same port centres, same connections, so no changes to the pipework.
Port centres
415 × 43 mm
Connections
22,35 mm solder or G1" external thread
Number of plates
10 to 50 plates, 8 versions
Stock
7 of 8 versions in stock
Read the number of plates from the nameplate of your Funke GPL25 and choose the UNEX PB14 with the same number in the table above. That version has the same length and comparable capacity; more plates means more capacity but also a longer unit. The UNEX PB14 is copper-brazed with stainless steel plates.
Want to be certain you pick the right version? Send us the type number or a photo of the nameplate via the contact form. Our specialists check the dimensions and send a no-obligation quote within one working day, including insulation and mounting materials if required.
Frequently asked questions about replacing the Funke GPL25
Will the UNEX PB14 fit my Funke GPL25 without modifications?
Yes. The replacement has the same port-to-port dimensions (415 × 43 mm) and the same connections (22,35 mm solder, G1" external thread), so the existing pipework does not need to be modified.
Is the replacement for the Funke GPL25 available from stock?
7 of the 8 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 50 plates, in 8 versions. Choose the version with the same plate count as your current Funke GPL25.
What does it cost to replace a Funke GPL25?
Request a no-obligation quote; you will receive pricing within one working day. Call us for expert advice: +31 (0)162 429 068.
