Model differences

Hamilton Beach O47 toaster ovens: 31134 vs 31137 vs 31144

The Hamilton Beach 31134, 31137 and 31144 are earlier small toaster ovens connected by the maker’s Type O47 Use & Care guide. They share a simple one-cavity Toast/Bake/Broil plan, but their pages give slightly different body depths and in-box descriptions. Measure the body and confirm the model label rather than assuming the model codes describe the same unit.

Three exact models, two useful body sizes

Model 31134 is the shallow one: Hamilton Beach lists an 8-inch height, 15-inch width and 9.5-inch depth. The page describes a four-slice capacity, a 9-inch pizza fit, an adjustable temperature, a 30-minute timer with bell and automatic shutoff, and a bake pan plus broil rack. If front-to-back counter space is tight, those exact numbers and the named rack bundle make it the most distinctive of the three.

The 31137 is listed at 7.8 inches high, 15 inches wide and 11.89 inches deep. Its page says it fits four bread slices or a medium 9-inch pizza, and names Toast, Bake and Broil with a bake pan. The 31144 page gives almost the same body dimensions—7.8 by 15 by 11.9 inches—and the same 9-inch pizza reference and basic controls. Its exact manufacturer image depicts a black/dark exterior, while the 31137 image shows a stainless-looking front. The guide lists both exact model numbers under Type O47; their shared functions and matching dimensions support treating 31144 as a finish variant of the 31137 plan, with its model code kept explicit.

For strict depth limits, do not round away a useful difference: 31134 is 9.5 inches deep; 31137 is 11.89; 31144 is 11.9. None of those figures includes operating clearance. The manual’s one-inch rule refers to the distance between food and a heating element, not the space between an oven and cabinetry. Check placement and door movement from the exact guide and your kitchen before choosing.

Shared operation, not three sets of presets

The directly linked 840194704 Use & Care guide names 31134, 31137 and 31144 together as Type O47 and rates them at 120 V, 60 Hz and 1,050 W. It describes Toast, Bake and Broil in one shared cavity. These are manual-control ovens, not digital air-fryers or multi-zone appliances. Their page listings do not establish convection, Air Fry, a named Bagel setting, Keep Warm, Dehydrate, a probe or a long-duration Low program. If one of those functions is essential, ask the finder for it and require the exact model’s own source to document it.

All three pages show an earlier lifecycle label—“No Longer Available.” That describes the maker page, not whether a shop has leftover inventory or a secondhand oven is in good condition. Before buying an older unit, compare the complete model label, check that the cord, door, crumb tray and controls are intact, and confirm the included parts. A replacement rack listed online is not proof that it came with a used oven.

Which one fits a simple routine?

Choose 31134 as the more compact-depth reference if 9.5 inches of body depth matters and you want the page-listed pan and broil rack. Choose 31137 if its stainless-looking finish suits the counter and the deeper 11.89-inch body is acceptable. Choose 31144 if you want the same approximate deeper footprint with the black-image finish. Their four-slice and 9-inch-pizza references suit small batches, not a full-size casserole or a larger pizza. No cubic-foot volume or interior dimensions are published, so a strict dish-fit or volume requirement is not proven by those marketing examples.

They also differ from the earlier Hamilton Beach 31142. That model has its own O72 guide and named Bagel and Keep Warm settings; those functions do not carry over to O47. Likewise, the maker’s “faster” or “less energy” statements are product-page claims, not independent performance tests. Compare the specific cooking tasks and exact body dimensions rather than turning them into a universal speed or efficiency ranking.

Each exact page links to the family guide at 840194704: see the 31134 page, 31137 page and 31144 page. This is a source-based comparison, not a test report.