After killing the cap of my trumatic heater of my campervan, I decided to build my own individual cap.

Please make sure to print with support and with appropriate infill.
I printed with PLA but probably would prefer ABS next time. Nevertheless, it lasts now for about 4 years.

Note: Meanwhile found also this one which looks better:
https://www.thingiverse.com/thing:5605391

Creality

Ender 3

No

Yes

200

80