Dehumidifier sizing Updated June 2026

50-Pint vs 70-Pint Dehumidifier: Which Size Do You Need?

By Yann Buf, HVAC tech 5 min read Standards-reviewed

TL;DR

Choose a 50-pint dehumidifier for spaces up to 2,000 sq ft with moderate dampness. Go with 70 pints for basements over 1,500 sq ft, very damp conditions, or if you need faster moisture removal.

50 Pint vs 70 Pint: The Real Difference

The difference between 50-pint and 70-pint dehumidifiers goes beyond just the capacity number. A 70-pint unit is physically larger, uses more power, and costs $50-80 more upfront. But it can remove moisture significantly faster.

For most homeowners with a 1,500-2,000 sq ft basement at moderate dampness, a 50-pint dehumidifier is the right choice. It's more energy-efficient, quieter, and costs less.

Top picks for this size

BEST OVERALL

Waykar 80 Pints Energy Star Dehumidifier

50-pint (80-pint 2019 DOE), 5000 sq ft, ENERGY STAR

★★★★ 4.4 · 21,500+ ratings

ENERGY STAR CertifiedAuto DefrostDrain Hose Included

$166 approx

Check price

BUDGET

Waykar 130 Pints Dehumidifier

★★★★☆ 4.5 · 213+ · $349

Amazon

PREMIUM

AEOCKY 5500 Sq.Ft 105 Pint Dehumidifier

★★★★ 4.4 · 4,900+ · $302

Amazon

Decision Guide: 50 vs 70 Pints

Choose 50 pints if: Space is 1,000-2,000 sq ft, moderate dampness, standard ceilings, residential use
Choose 70 pints if: Space is 1,500-3,000+ sq ft, very damp/wet conditions, 10 ft+ ceilings, commercial use

Frequently asked questions

How much more electricity does a 70-pint use vs 50-pint?

A 70-pint dehumidifier typically uses 200-250 more watts than a 50-pint when running. That's about $7-10 more per month.

Is a 70-pint dehumidifier louder than a 50-pint?

Generally yes. 70-pint units have larger compressors and fans, producing 55-60 dB compared to 48-53 dB for 50-pint models.

Can I use a 70-pint dehumidifier in a small room?

Technically yes, but it's overkill and may short-cycle, which is inefficient. A 70-pint in a small room will cycle frequently, wearing out the compressor faster.