Hater or Heater: How To spell?

The word Hater is misspelled against Heater, a noun meaning "Any contrivance or implement, as a furnace, stove, or other heated body or vessel, etc., used to impart heat to something, or to contain something to be heated."

--> Heater has vowels 'ea' together mispronounced as 'a'
Word contains consecutive vowels 'EA' in between alphabets h & ter is misspelled as 'A'
Wrong Spelling:  h-a-ter 
Correct Spelling:  h-ea-ter 
Explore spell check of Heater to spell without errors.

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