Every commercial gas range gets a score from 0 to 100% built from five factors, which maps onto the 5-point rating shown on the site (a 0% score would be 1.5 stars; a perfect score, 5). Each factor is scored against fixed reference points, not against the other products in the list, so adding a new model never moves another model’s rating. Ranges are grouped by width, 24 in, 36 in and 48 to 60 in, and use the same scale in every group.
| Factor | Measures | Weight |
|---|---|---|
| Value | price per 1,000 BTU of total input, burners and ovens | 30% |
| Burners | rating of each open burner on natural gas | 20% |
| Oven | rating of each oven, plus a convection fan | 20% |
| Features | oven safety shut-off, two racks per oven, casters and a propane kit in the box | 20% |
| Warranty | warranty length | 10% |
Where the numbers come from
Burner and oven ratings, oven size, features and warranty come from the maker’s spec sheet or warranty statement, or from the maker’s own copy on a retail listing where no spec sheet covers the model. Every rating is for the natural gas version. When a spec sheet and a listing disagree, the spec sheet’s figure is used. Prices are checked at the stores each page links to, and the lowest price is used.
The factors
Value is the current price divided by the total input of the burners and ovens together, in dollars per 1,000 BTU, on a log scale, so halving the price always counts the same. $30 per 1,000 BTU scores zero and $6 per 1,000 BTU full marks. Where a maker gives the burner and oven ratings but no total, the total is their sum.
Burners is the rating of each open burner on natural gas: 24,000 BTU scores zero and 36,000 BTU full marks. Propane ratings, where a maker publishes a separate figure, are shown on the product page and never scored.
Oven is 60% the rating of each oven burner (24,000 BTU scores zero and 38,000 BTU full marks) and 40% for a convection fan. On a two-oven range each oven is rated on its own, so a 60 in range is not scored as if it had one oven twice as strong.
Features is 35% for an oven pilot with a 100% safety shut-off or flame-failure device, 25% for two or more racks with each oven, 20% for casters as standard equipment and 20% for propane conversion parts in the box.
Warranty is the maker’s warranty: none scores zero and 3 years full marks, so a one-year warranty earns a third of this factor.
What isn’t scored
Width, the number of burners, oven interior size, thermostat range, ignition type, weight, certifications, propane ratings, whether a range can be converted to propane, and release date are listed but not scored. Service networks and parts availability matter a great deal for commercial equipment but are not published in a form that can be compared, so they are left to the buyer.
Missing data
If a burner or oven rating isn’t published, that factor gets the neutral middle score (50) and the product page marks it as estimated. When the total input isn’t published, value uses the sum of the published burner and oven ratings. Features score neutral only when none of them is published; a feature the maker doesn’t mention otherwise counts as absent, including casters a maker sells only as an option. The exception is warranty: a maker that doesn’t publish one gets no warranty counted, so that factor scores zero and is marked estimated.
Ties and discontinued models
Products are ranked by score within each group. Discontinued models stay listed but rank below every current model and can be hidden with the “Hide discontinued” filter.