Is there any problem fitting seat covers to heated and cooled seats (SR Premium)? I doubt I'll use heating, but in the summer might use the cooling feature.
There was some warning about using heated seats with seat covers in my Holden Calais manual. Might be worth checking the heated seat part of the manual in the i30 to see if there is any reference. I think it said something like take care when using seat heating with seat covers that they are not left on too long or they may cause overheating or scorching (or something like that)
Shouldn't be a problem with the cooling although depending on what type you get I would expect reduced efficiency as the airflow would be greatly reduced.
Looking at these pages i extracted from the online manual I wouldn't use the heaters with seat covers, but I think cooling would be worth a try. If can't feel any airflow through cover just give them a miss.