Do us a favor, and conduct a little experiment... please.
Take the temp of the water just before you put the ground coffee in, and then again after your steeping time. I'm dying to find out.
Ok I performed the requested task Sunday morning. This is the method I used and the results:
1) Filled the FP with hot tap water (approx. 130-140 degrees). I usually use boiled water, but out of curiosity tried this.
2) Started grinding the coffee and boiling the water.
3) After grinding and boiling, I removed the heat from the water.
4) Emptied and dried the FP.
5) When the water reached ~195 degrees, poured it in the FP.
6) Added grounds, stirred, and placed plunger and lid on FP.
7) Waited precisely
3.5 minutes.
8 ) Removed lid and measured water temperature.
9) ~192-193 degrees! Not bad, I'd say.
Let me know if you have any questions.