The heat exchangers below are 1:1 replacements for the SWEP B25
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.

SWEP B25THX10 can be replaced by UNEX PBU20-10
UNEX PBU20-10
1:1: same port-to-port dimensions (479 × 72 mm) and connection G1" external thread

SWEP B25THX14 can be replaced by UNEX PBU20-14
UNEX PBU20-14
1:1: same port-to-port dimensions (479 × 72 mm) and connection G1" external thread

SWEP B25THX20 can be replaced by UNEX PBU20-20
UNEX PBU20-20
1:1: same port-to-port dimensions (479 × 72 mm) and connection G1" external thread

SWEP B25THX24 can be replaced by UNEX PBU20-24
UNEX PBU20-24
1:1: same port-to-port dimensions (479 × 72 mm) and connection G1" external thread

SWEP B25THX30 can be replaced by UNEX PBU20-30
UNEX PBU20-30
1:1: same port-to-port dimensions (479 × 72 mm) and connection G1" external thread

SWEP B25THX34 can be replaced by UNEX PBU20-34
UNEX PBU20-34
1:1: same port-to-port dimensions (479 × 72 mm) and connection G1" external thread

SWEP B25THX40 can be replaced by UNEX PBU20-40
UNEX PBU20-40
1:1: same port-to-port dimensions (479 × 72 mm) and connection G1" external thread

SWEP B25THX44 can be replaced by UNEX PBU20-44
UNEX PBU20-44
1:1: same port-to-port dimensions (479 × 72 mm) and connection G1" external thread

SWEP B25THX50 can be replaced by UNEX PBU20-50
UNEX PBU20-50
1:1: same port-to-port dimensions (479 × 72 mm) and connection G1" external thread

SWEP B25THX70 can be replaced by UNEX PBU20-70
UNEX PBU20-70
1:1: same port-to-port dimensions (479 × 72 mm) and connection G1" external thread

SWEP B25THX80 can be replaced by UNEX PBU20-80
UNEX PBU20-80
1:1: same port-to-port dimensions (479 × 72 mm) and connection G1" external thread

SWEP B25THX90 can be replaced by UNEX PBU20-90
UNEX PBU20-90
1:1: same port-to-port dimensions (479 × 72 mm) and connection G1" external thread

SWEP B25THX100 can be replaced by UNEX PBU20-100
UNEX PBU20-100
1:1: same port-to-port dimensions (479 × 72 mm) and connection G1" external thread

SWEP B25x10 can be replaced by UNEX PBU20-10
UNEX PBU20-10
1:1: same port-to-port dimensions (479 × 72 mm) and connection G1" external thread

SWEP B25x14 can be replaced by UNEX PBU20-14
UNEX PBU20-14
1:1: same port-to-port dimensions (479 × 72 mm) and connection G1" external thread

SWEP B25x20 can be replaced by UNEX PBU20-20
UNEX PBU20-20
1:1: same port-to-port dimensions (479 × 72 mm) and connection G1" external thread

SWEP B25x24 can be replaced by UNEX PBU20-24
UNEX PBU20-24
1:1: same port-to-port dimensions (479 × 72 mm) and connection G1" external thread

SWEP B25x30 can be replaced by UNEX PBU20-30
UNEX PBU20-30
1:1: same port-to-port dimensions (479 × 72 mm) and connection G1" external thread

SWEP B25x34 can be replaced by UNEX PBU20-34
UNEX PBU20-34
1:1: same port-to-port dimensions (479 × 72 mm) and connection G1" external thread

SWEP B25x40 can be replaced by UNEX PBU20-40
UNEX PBU20-40
1:1: same port-to-port dimensions (479 × 72 mm) and connection G1" external thread

SWEP B25x44 can be replaced by UNEX PBU20-44
UNEX PBU20-44
1:1: same port-to-port dimensions (479 × 72 mm) and connection G1" external thread

SWEP B25x50 can be replaced by UNEX PBU20-50
UNEX PBU20-50
1:1: same port-to-port dimensions (479 × 72 mm) and connection G1" external thread

SWEP B25x70 can be replaced by UNEX PBU20-70
UNEX PBU20-70
1:1: same port-to-port dimensions (479 × 72 mm) and connection G1" external thread

SWEP B25x80 can be replaced by UNEX PBU20-80
UNEX PBU20-80
1:1: same port-to-port dimensions (479 × 72 mm) and connection G1" external thread

SWEP B25x90 can be replaced by UNEX PBU20-90
UNEX PBU20-90
1:1: same port-to-port dimensions (479 × 72 mm) and connection G1" external thread

SWEP B25x100 can be replaced by UNEX PBU20-100
UNEX PBU20-100
1:1: same port-to-port dimensions (479 × 72 mm) and connection G1" external thread
Frequently asked questions about replacing the SWEP B25
Will the UNEX PBU20 fit my SWEP B25 without modifications?
Yes. The replacement has the same port-to-port dimensions (479 × 72 mm) and the same connections (G1" external thread), so the existing pipework does not need to be modified.
Is the replacement for the SWEP B25 available from stock?
20 of the 26 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 26 versions. Choose the version with the same plate count as your current SWEP B25.
What does it cost to replace a SWEP B25?
Request a no-obligation quote; you will receive pricing within one working day. Call us for expert advice: +31 (0)162 429 068.
