Dehumidifier comparison
50 Pint vs 70 Pint Dehumidifier: Which Size Do You Need?
By the WhatSize editorial team 5 min read Standards-reviewed
When choosing a dehumidifier, the decision between a 50-pint and 70-pint unit is one of the most common. The difference goes beyond just the capacity number — it affects energy use, noise level, physical size, and cost. This guide breaks down exactly when each size makes sense.
Under the 2019 DOE standard, a 50-pint dehumidifier removes 50 pints of moisture per day at 65°F/60% RH. A 70-pint unit removes 70 pints under the same conditions. But the real-world difference depends on your space, dampness level, and climate.
50 Pint vs 70 Pint: Side-by-Side
| Factor | 50 Pint | 70 Pint |
|---|---|---|
| Coverage (sq ft) | 1,000 - 2,000 | 1,500 - 3,000+ |
| Energy use | 300-500W | 500-750W |
| Noise level | 48-53 dB | 55-60 dB |
| Typical price | $150-$250 | $200-$350 |
| Tank size | 10-15 pints | 14-20 pints |
| Weight | 30-40 lbs | 40-55 lbs |
| Best for basements | Up to 1,500 sq ft | 1,500-3,000+ sq ft |
When to choose 50 Pint
- Your space is 1,000-2,000 sq ft with moderate dampness
- You have standard 8 ft ceilings
- Noise level is a concern — 50-pint units are 5-7 dB quieter
- You want to save $50-100 upfront and reduce monthly electricity
- Your basement is finished or partially finished with good drainage
When to choose 70 Pint
- Your space is over 1,500 sq ft or very damp
- You have high ceilings (10 ft+) or an open floor plan
- You need faster moisture removal after flooding or heavy rain
- Your basement is unfinished, damp, or has standing water issues
- You live in a humid climate (Florida, Gulf Coast, Pacific Northwest)
Top pick for each option
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Best for 50 Pint
Best for 70 Pint
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. At $0.14/kWh and running 12 hours per day, that's about $10-15 more per month.
Is a 70-pint dehumidifier too big for a small basement?
It can be. A 70-pint unit in a small space (under 500 sq ft) will short-cycle — running for very short periods and shutting off frequently. This is inefficient and can wear out the compressor faster. Stick with 50 pints for spaces under 1,500 sq ft.
Can I replace a 70-pint dehumidifier with two 35-pint units?
Not recommended. Two separate units cost more to run, are harder to maintain, and don't coordinate with each other. One properly sized unit is always better.
All Dehumidifier sizing guides
More dehumidifier sizing guides
- What Size Dehumidifier for a 500 Sq Ft Room?
- What Size Dehumidifier for a 1,000 Sq Ft Space?
- What Size Dehumidifier for a 1,500 Sq Ft Space?
- What Size Dehumidifier for a 2,000 Sq Ft Space?
- What Size Dehumidifier for a Basement?
- What Size Dehumidifier for a Bedroom?
- What Size Dehumidifier for a Crawl Space?
- 50-Pint vs 70-Pint Dehumidifier: Which Size Do You Need?
- What Size Dehumidifier for a Grow Room? Tent Sizing Guide
- What Temperature Does a Dehumidifier Stop Working? Winter Guide
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