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Tier 2 are those that are 25% to 29.9% more efficient. Tier 3 is the highest qualification, for those refrigerators that are at least 30% more efficient than Federal standards. [42] About 82% of the Energy Star qualified refrigerators are Tier 1, with 13% qualifying as Tier 2, and just 5% at Tier 3. [citation needed]
The coefficient of performance or COP (sometimes CP or CoP) of a heat pump, refrigerator or air conditioning system is a ratio of useful heating or cooling provided to work (energy) required. [ 1 ] [ 2 ] Higher COPs equate to higher efficiency, lower energy (power) consumption and thus lower operating costs.
A rating system can be any kind of rating applied to a certain application domain. They are often created using a rating scale.. Examples include: Motion picture content rating system
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Rating system of the Royal Navy (7 P) S. Star ranking systems (2 P) Sustainable building rating systems (1 C, 15 P) T. Top lists (10 C, 39 P) Tournament rating ...
A tier list is a concept originating in video game culture where playable characters or other in-game elements are subjectively ranked by their respective viability as part of a list. Characters listed high on a tier list of a specific game are considered to be powerful characters compared to lower-scoring characters, and are therefore more ...
This 400E locomotive from the early ’30s sold for a whopping $250,000 in 2016. But there’s good news: you can buy a similar one online for a fraction of the price.Its rarity, condition, and ...
Multitier architecture, a tier-based system in software architecture; Tier (emission standard), rankings of emission standards in the US; Standings or rankings, listings which compare sports teams or individuals, institutions, nations, companies, or other entities by ranking them in order of ability or achievement; Tier list, a list of playable ...