Water is incompressible so you can't raise its temperature by compressing it. You could raise the temperature of air and transfer the heat to the water, but...

To raise the temperature of 1 gallon of water from room temp to boiling takes over 1000 BTU. That's 778,000 ft-lbs. So if you weigh 200 lbs, you can jump off a ~4000 ft cliff and land on the piston - boiling water!

(My apologies for the non-SI units)
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- Tom S.

"Never trust and engineer who doesn't carry a pocketknife."