Removing baseboard heater and installing elec oven on that wall
Probably not.


There are 120V and 240V baseboard heaters. Your oven will almost certainly be 240V.
Baseboard heaters basically max out at 1500W. Ovens are more 2000W+.
The baseboard circuit probably had other things on it.


I'm ignoring the code issues, because I don't know the code, but I'd say the wiring is probably not good enough on a technical level. If this happened to be a 240V, 2500W heater on a dedicated circuit, it might be worthwhile to check the code, but anything less beefy than that isn't going to work.