Learn Danish: Varmepumpen er noget dyrere end gasfyret. - The heat pump is somewhat more expensive than the gas boiler.

Here, noget is a degree adverb meaning "somewhat" or "a good deal." You could grammatically use lidt (a little), but noget dyrere implies a much more noticeable price difference than lidt dyrere does.

I thought noget meant "something". How can I tell when it means "somewhat"?

When noget is placed directly in front of a comparative adjective like dyrere, it shifts from being a pronoun to an adverb of degree modifying that adjective. If it meant "something", it would typically stand alone as an object or be followed by a standard neuter adjective rather than a comparative.

Why is the comparative form dyrere instead of mere dyr?

Short, single-syllable adjectives like dyr generally take the -ere suffix to form the comparative. The word mere (more) is reserved for longer adjectives, typically those with three or more syllables or those ending in suffixes like -isk or -et.

Why do varmepumpen and gasfyret have different definite endings in this sentence?

Compound nouns always take the grammatical gender of their final word. Because en pumpe is common gender, the first word becomes varmepumpen. Because et fyr (a boiler or furnace) is neuter gender, the second becomes gasfyret.