Protherm flue adapter Ø 80/125 mm A25K

Product detailed description

The adapter is the first part used to connect the concentric (coaxial) flue system directly to the boiler outlet - it matches the diameter of the boiler’s outlet to the diameter of the chosen flue pipe. Without the correct adapter, no further flue parts can be connected to the boiler.

Protherm Flue adapter Ø 80/125 mm A25K (for Gepard Condens, Lev 25 KKZ90, Lev Heliotwin boilers)

Flue adapter made by Protherm for a concentric flue with a diameter of 80/125 mm, intended for Gepard Condens, Lev 25 KKZ90, Lev Heliotwin condensing boilers.

• 1 × adapter
• 1 × clamp 125x70
• fixing material

Frequently asked questions

• How can I check that „Protherm flue adapter Ø 80/125 mm A25K“ fits my appliance exactly? The most reliable way is to compare the exact type/catalogue designation on your appliance’s nameplate (boiler, tank, water heater) with the compatibility stated directly in this product’s name (brand PROTHERM) and in its technical parameters above. If in doubt, send us the exact type designation of your appliance (including the serial number, if available) - we will gladly verify compatibility for you.
• Why is it important to use an original/compatible part rather than a universal replacement? Parts such as seals, sensors or safety components (safety valves, thermal fuses) are generally dimensioned precisely to the parameters of a specific appliance (pressure, temperature, sensor electrical resistance) - an incorrect part can cause reduced function, leaks, or in the case of safety components, a genuine safety risk.
• Does this part have to be installed by a professional? For simpler, mechanical parts (e.g. seals, covers, minor accessories with no connection to electricity, gas or the pressure section) a handy home user can usually manage the replacement after disconnecting the appliance from power and supply lines. However, for any intervention in the gas, electrical or pressure section of the appliance (e.g. sensors directly in the combustion chamber, safety valves, electronic modules), we always recommend a service technician - especially since such work could otherwise affect the validity of the warranty on the whole appliance.
• How can I tell that this part is worn and needs replacing? Common signs include visible wear/cracking (for seals and rubber parts), a leak of water or flue gases at the part, an error message on the control display (for sensors and electronic modules), or a clearly reduced function of the appliance (e.g. irregular combustion for burner parts). If in doubt, the safest option is to have the condition assessed by a service technician during the regular annual inspection.
• Is it worth keeping this part at home as a spare? For parts that are subject to normal wear (seals, fuses, small mechanical components) and whose failure would mean an interruption to heating or water heating, keeping a spare on hand is a sensible precaution - especially for an older appliance for which the part might be harder to source quickly.