Cabinet depth is the dividing line between the PRD366WHU and the PRD366WGU. Thermador builds this one in its Pro Harmony body, 24 3/4” deep, with an oven of 4.9 cu ft. The cooktop idea carries over: six open burners and 99,000 BTU. Gas above and electricity below stay independent systems.
Across the six burners run three continuous grates. If one rocks, we look for warping or a bent support bracket long before suspecting a burner.
Owners also describe delayed ignition, a flame that lights late or unevenly along the burner row. That usually reflects a partially clogged port or a tired igniter spark. Should a burner fail to light while you smell gas, close the range’s gas valve before trying anything else.
No. Six-burner cooktops match, but the WHU's 24 3/4'' Pro Harmony cabinet holds 4.9 cu ft, whereas the WGU's deeper Pro Grand cabinet (27 7/8'') holds 5.7 cu ft.
A pop at ignition usually means gas pooled for a moment before catching, often because a port is partly clogged or the spark is weak. Book a check, and close the gas valve if it happens often or a gas smell accompanies it.
Yes, have it inspected for warping or a bent bracket. The burner is rarely involved, but a loose grate is an unsteady base for a heavy pot.
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