Measure the opening before you compare ovens. In the 800 Series, the HBL8743UC is a combination wall oven requiring a space 49 inches tall, an awkward number that falls between a single oven and a double. It uses 9,600 watts and pairs a 1.6 cu ft microwave-convection compartment with a full oven underneath.
Since the heights differ, a combination oven and a double oven cannot trade places in the same column. Whoever swaps one for the other should budget for cabinetry changes in both directions.
Home Connect and a soft-close door come along, as do convection, microwave and combined cooking. Two details matter for long-term ownership. One is two cooking systems sharing a single control fascia. The other is airflow: the upper compartment is actively cooled and that air must leave through the cabinet, so a cutout that is too snug is a genuine cause of shutdowns.
Not without carpentry. A double oven column measures roughly 52 inches and a combination oven roughly 49, so the opening must be altered in either direction.
Bosch publishes cutout and clearance figures, and they matter, since the upper compartment's cooling air has to exit. A snug opening can trigger protective shutdowns.
They are in the installation instructions for the exact model number. Check them before any cabinetry work begins, so the opening, the trim and the ventilation are right the first time.
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