The heat exchangers below are 1:1 replacements for the Funke GPL8
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 GPL8-20 can be replaced by UNEX PB44-20
UNEX PB44H-20
1:1: same port-to-port dimensions (420 × 160 mm) and connection G2½" external thread or 54 mm solder

Funke GPL8-24 can be replaced by UNEX PB44-24
UNEX PB44H-24
1:1: same port-to-port dimensions (420 × 160 mm) and connection G2½" external thread or 54 mm solder

Funke GPL8-30 can be replaced by UNEX PB44-30
UNEX PB44H-30
1:1: same port-to-port dimensions (420 × 160 mm) and connection G2½" external thread or 54 mm solder

Funke GPL8-34 can be replaced by UNEX PB44-34
UNEX PB44H-34
1:1: same port-to-port dimensions (420 × 160 mm) and connection G2½" external thread or 54 mm solder

Funke GPL8-40 can be replaced by UNEX PB44-40
UNEX PB44H-40
1:1: same port-to-port dimensions (420 × 160 mm) and connection G2½" external thread or 54 mm solder

Funke GPL8-44 can be replaced by UNEX PB44-44
UNEX PB44H-44
1:1: same port-to-port dimensions (420 × 160 mm) and connection G2½" external thread or 54 mm solder

Funke GPL8-50 can be replaced by UNEX PB44-50
UNEX PB44H-50
1:1: same port-to-port dimensions (420 × 160 mm) and connection G2½" external thread or 54 mm solder

Funke GPL8-60 can be replaced by UNEX PB44-60
UNEX PB44H-60
1:1: same port-to-port dimensions (420 × 160 mm) and connection G2½" external thread or 54 mm solder

Funke GPL8-70 can be replaced by UNEX PB44-70
UNEX PB44H-70
1:1: same port-to-port dimensions (420 × 160 mm) and connection G2½" external thread or 54 mm solder

Funke GPL8-80 can be replaced by UNEX PB44-80
UNEX PB44H-80
1:1: same port-to-port dimensions (420 × 160 mm) and connection G2½" external thread or 54 mm solder

Funke GPL8-90 can be replaced by UNEX PB44-90
UNEX PB44H-90
1:1: same port-to-port dimensions (420 × 160 mm) and connection G2½" external thread or 54 mm solder

Funke GPL8-100 can be replaced by UNEX PB44-100
UNEX PB44H-100
1:1: same port-to-port dimensions (420 × 160 mm) and connection G2½" external thread or 54 mm solder

Funke GPL8-120 can be replaced by UNEX PB44-120
UNEX PB44H-120
1:1: same port-to-port dimensions (420 × 160 mm) and connection G2½" external thread or 54 mm solder

Funke GPL8-150 can be replaced by UNEX pb44-150
UNEX PB44H-150
1:1: same port-to-port dimensions (420 × 160 mm) and connection G2½" external thread or 54 mm solder

Funke GPL8-180 can be replaced by UNEX pb44-180
UNEX PB44H-180
1:1: same port-to-port dimensions (420 × 160 mm) and connection G2½" external thread or 54 mm solder

Funke GPL8-200 can be replaced by UNEX pb44-200
UNEX PB44H-200
1:1: same port-to-port dimensions (420 × 160 mm) and connection G2½" external thread or 54 mm solder
Replacing the Funke GPL8 with the UNEX PB44
Is there a Funke GPL8 in your installation that leaks or is losing capacity? The UNEX PB44 takes its place without any change to the pipework.
Port centres
420 × 160 mm
Connections
54 mm solder or G2½" external thread
Number of plates
20 to 200 plates, 16 versions
Stock
Available on request
Read the number of plates from the nameplate of your Funke GPL8 and choose the UNEX PB44 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 PB44 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 GPL8
Will the UNEX PB44 fit my Funke GPL8 without modifications?
Yes. The replacement has the same port-to-port dimensions (420 × 160 mm) and the same connections (54 mm solder, G2½" external thread), so the existing pipework does not need to be modified.
Is the replacement for the Funke GPL8 available from stock?
The versions are available on request; contact us for current lead times.
Which plate counts are available?
The replacements are available from 20 to 200 plates, in 16 versions. Choose the version with the same plate count as your current Funke GPL8.
What does it cost to replace a Funke GPL8?
Request a no-obligation quote; you will receive pricing within one working day. Call us for expert advice: +31 (0)162 429 068.
