fire / urgent / ammunition / fiery or flaming / internal heat (Chinese medicine) / hot (popular) / classifier for military units (old) / Kangxi radical 86
火
=
人
+
丶
:
Helga Horse (hu) and Neanderthal Man (人) are starting a fire (火) in the observatory's living room (o3) with two large petals (丶).
to warm up / to heat up / hot (of weather) / heat / fervent
热
=
执
+
灬
:
Robinson Crusoe wants to heat himself up in the elevator's bathroom, so he burns his good-for-nothing grilling license on a grill to ignite a sizeable flame.
(idiom) to be on very good terms with each other / to hit it off with sb / to be passionately in love with each other / to carry on intimately with / (of trading, conflict etc) to be in full swing