Dehumidifier sizing by dampness level, with the adjustments that raise it

Capacity scales with dampness (AHAM area × dampness); size up for tall ceilings, laundry, and bare concrete, then round to a standard unit.

Four dampness bands for a roughly 1,000 square foot space, each with a growing water bar and a pints-per-day need on the current scale: moderately damp about 10, damp about 14, very damp about 18, and wet about 22. Amber chips below list the adjustments that size it up — a tall ceiling times 1.25, a laundry plus 5 pints, and bare concrete up one tier. — Source: AHAM DH-1 (current 2019 scale)

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Four dampness bands for a roughly 1,000 square foot space, each with a growing water bar and a pints-per-day need on the current scale: moderately damp about 10, damp about 14, very damp about 18, and wet about 22. Amber chips below list the adjustments that size it up — a tall ceiling times 1.25, a laundry plus 5 pints, and bare concrete up one tier.

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