*gwhor-no- PIE form for furnace?

Suffixed o-grade form *gwhor-no-. a. fornax, furnace, hornito, from
Latin furnus, fornus, forna_x, oven; *gwhr-. a. burn from Old
English beornan, byrnan (intransitive) and bærnan (transitive), to
burn; ?forge. Middle English, from Old French, from Vulgar Latin
*faurga, from Latin fabrica, from faber, worker. ?hearth. Middle
English herth, from Old English heorth. (Bartleby).

bhra_s.t.ra = fried or cooked in a frying-pan (Pa_n.ini 4-2 , 16);
bhat.a = furnace, brick kiln; bhat.i = oven, kiln (Santali)

gharma (root: ghr.) = heat , warmth (of the sun or of fire)(R.gveda)