Thermovoltec or Thermovoltaic: How To spell?
The word Thermovoltec is misspelled against Thermovoltaic, an adjective meaning "relating to heat and electricity; especially, relating to thermal effects produced by voltaic action."
Word contains consecutive vowels 'AI' in between alphabets thermovolt & c is misspelled as 'E'Wrong Spelling:  thermovolt-e-c  Correct Spelling:  thermovolt-ai-c 
Find more incorrect spellings of Thermovoltaic to spell right way.