Hotwire Mass air flow sensors use a 12v power signal to heat a wire. The wire heats up and changes temperature (creating a voltage reading). As air flows across it and cools it off, the voltage reading changes. Using hot air to get MAF isn't a great idea IMHO.
You can contact nixit on Aol's Instant Messenger using the user ID; "nixit911". WH4T AR3 J00 TALX0RING ABOOT? J00 BETT3R CHEX J00RSELF B4 J00 WREX J00RSELF. - infinite loop 21:49:14 03/19/02