The outside temperature was -3 °C and more than half m3/min of warmed air was streaming out from the heater. Its temperature was +62 °C.

http://napenergia.freeweb.hu/gyak/szp/sztgyi_en.htm
The outside temperature was -3 °C and more than half m3/min of warmed air was streaming out from the heater. Its temperature was +62 °C. I was calculating from the measured data around 700 watts. If I put the +/- 5% of tolerance into the rounding error of the displays, even the 736 W result could have been calculated.

This is precisely 1 horsepower!!!

http://www.youtube.com/watch?v=Jzxw1j-dzY4&playnext=1&list=PL1100BC2BCCB98F65&index=27

http://www.youtube.com/watch?v=AXL707XI-4s

http://www.youtube.com/watch?v=5rEJ_huhitE&feature=related

http://www.youtube.com/watch?v=lysBkzlspp4&feature=related

http://www.youtube.com/watch?annotation_id=annotation_148566&feature=iv&v=Lz7k9El_d7A

http://beam.to/solarheat