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Denshi Jisho — Online Japanese dictionary

コタツ kotatsu; table over an electric heater (orig. a charcoal brazier in a floor well) with a hanging quilt that retains heat
Noun, Usually written using kana alone 
炬燵 こたつ kotatsu; table over an electric heater (orig. a charcoal brazier in a floor well) with a hanging quilt that retains heat
Common word, Noun, Usually written using kana alone 
火燵 こたつ kotatsu; table over an electric heater (orig. a charcoal brazier in a floor well) with a hanging quilt that retains heat
Noun, Usually written using kana alone 
火燵掛布 こたつがけ cover for kotatsu
Noun, Usually written using kana alone 
火燵布団 こたつぶとん cover for kotatsu
Noun, Usually written using kana alone 

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