Sure, why not? If you are making stuff up, you can make up air-conditioning systems heating the wings.
It looks like they use a ground system to cool the aircraft when it's waiting.
The onboard air conditioning system exhausts under the belly.
The NTSB did extensive testing of the heating from the air conditioning packs, and did an emulation test flight a year after the TWA 800 accident. It’s all in the report. Nobody needs to make up anything, and the operation and location of the air conditioning packs are meticulously explained, which you obviously need to study.