炉 is a Japanese kanji written with 8 strokes, listed here under the keyword “hearth”. It is built from 火 (fire) and 戸 (door). In Remembering the Kanji by James W. Heisig it is frame 1161.
On KumiJi Glyph Explorer, open the parts search and type “fire” + “door”. 炉 is among the results, together with every other character containing the same shapes.
Open 炉 in the interactive kanji search
to expand every part down to its smallest pieces, add your own names and mnemonic stories,
or search for other characters by their parts.