Skip to content
Namco P646-190 190-Pint Crawl Space Dehumidifier – Auto Pump, R-410A, 3,300 sq ft
1/2
Namco Compact Crawl Space Commercial Dehumidifier, 190 Pint - US Cleaning Tools
Namco Compact Crawl Space Commercial Dehumidifier, 190 Pint - US Cleaning Tools

Namco P646-190 190-Pint Crawl Space Dehumidifier – Auto Pump, R-410A, 3,300 sq ft

Brand: Namco ManufacturingSKU: P646-190In Stock – Ready to Ship
$1,868.40

Ships from US manufacturer with factory warranty

Ach Direct DebitAmazon American Express Apple Pay Diners ClubDiscoverGoogle Pay Mastercard PayPalShop Pay USDC Visa
Authorized RetailerFactory-authorized dealer with genuine products
Manufacturer's WarrantyFull manufacturer warranty included
30-Day ReturnsHassle-free returns within 30 days
Lowest Price GuaranteedWe match any competitor's price
Ordering 3+ units? Call for volume pricing – +1 (978) 295-7538
Order before 5:00 PM EST for same-day dispatch. Estimated delivery:

Need help choosing? Talk to an expert

+1 (978) 295-7538

Namco P646-190 190-Pint Crawl Space Dehumidifier – Auto Pump-Out, 3,300 sq ft Coverage

The Namco P646-190 removes up to 190 pints of moisture per day with an automatic pump-out system rated for 3,300 square feet of coverage. The compact profile fits in crawl spaces, basements, and tight mechanical areas where full-size commercial dehumidifiers cannot be positioned. R-410A refrigerant and digital controls with programmable humidity setpoints make it suitable for both permanent installation and temporary restoration deployment.

P646-190 Capacity, Coverage Area, and Pump System

  • Capacity: 190 pints/day β€” removes moisture at nearly double the rate of standard 95-pint models; appropriate for large crawl spaces with high groundwater infiltration or severe condensation.
  • Coverage area: up to 3,300 sq ft β€” handles large residential crawl spaces (most are 1,000–2,500 sq ft) and medium commercial basements.
  • Auto pump-out β€” continuous drainage to floor drain or drain hose; no manual bucket emptying required for extended unattended operation.
  • Refrigerant: R-410A β€” current-generation refrigerant, no ozone depletion, widely serviceable.
  • Controls: Digital β€” set target relative humidity with LCD readout; programmable for setpoint maintenance.
  • Voltage: 110–125V, NEMA 5-15P β€” standard outlet compatible for residential and light commercial installation.

Crawl Space and Basement Moisture Control Applications

The P646-190's 190-pint capacity handles the moisture load generated by large crawl spaces with vapor barriers but persistent groundwater seepage, basements with masonry walls that absorb exterior moisture, and whole-house humidity problems in humid climates where standard 50–70-pint residential units cannot achieve target RH levels. Restoration contractors deploying the P646-190 in water-damaged crawl spaces achieve faster structural drying than with lower-capacity units, reducing total project duration and the risk of secondary mold growth during the drying period.

Choosing Between P646-95, P646-150, and P646-190

All three P646 variants share the same compact footprint, auto pump-out, and digital controls. Capacity selection depends on space size and moisture load severity. The P646-95 handles up to 1,300 sq ft for standard crawl space maintenance. The P646-150 covers up to 2,600 sq ft for larger spaces or moderate moisture problems. The P646-190 at 3,300 sq ft coverage handles the most severe moisture conditions in the compact form factorβ€”select it when a crawl space has standing water history, high-humidity climate exposure, or inadequate vapor barrier conditions that require continuous high-capacity moisture removal.

Specification Value
Model P646-190
Capacity 190 pints/day
Coverage Area Up to 3,300 sq ft
Refrigerant R-410A
Auto Pump-Out Yes
Controls Digital
Voltage 110–125V
Plug Type NEMA 5-15P
Filtration High-performance air filter
TypeRefrigerant
Capacity190 PPD
Coverage3300 sq ft
Voltage230V
Built-in PumpYes

Product Warranty Information

"Motors & Parts: 1 Year Pro-Rated "

B2B & Tax-Exempt Purchases

We supply contractors, restoration companies, property managers, schools, government agencies, and other tax-exempt organizations.

How to place a tax-exempt order:

  1. Write to us through our Contact Us page or email info@uscleaningtools.com and attach your valid tax exemption certificate (state resale or exemption certificate).
  2. We verify your certificate and mark your account tax-exempt — usually within one business day.
  3. Place your order and sales tax will not be charged.

For volume pricing or purchase orders, call +1 (978) 295-7538.

Shipping & Returns

Free shipping on most brands for orders over $300, delivered to the lower 48 states. Any brand-specific freight rate is shown at checkout before you pay.

Processing & delivery: in-stock orders are processed within 1–2 business days and typically deliver in 5–7 business days. Tracking is emailed within 24 hours of shipment. Built-to-order and backordered equipment shows its lead time on this page.

Freight deliveries: inspect your equipment on arrival and note any damage on the delivery receipt. Items damaged in transit or defective on arrival are fully covered at no cost to you.

Cancellations: cancel any time before your order ships for a full 100% refund.

30-day returns: return unused equipment in its original packaging within 30 days of delivery. Change-of-mind returns are subject to a restocking fee. To start a return, email info@uscleaningtools.com or call +1 (978) 295-7538.

Product Image
Added to cart
Namco P646-190 190-Pint Crawl Space Dehumidifier – Auto Pump, R-410A, 3,300 sq ftNamco P646-190 190-Pint Crawl Space Dehumidifier – Auto P...
View Cart
$1,868.40

Frequently Asked Questions

What is the coverage area for the Namco P646-190?
The P646-190 is rated for up to 3,300 square feetβ€”the largest coverage in the P646 series. This handles large residential crawl spaces (most are 1,000–2,500 sq ft) and medium commercial basements.
How does the P646-190 compare to the P646-150 and P646-95?
All three P646 models share the same compact form factor. The P646-95 covers 1,300 sq ft (95 pints/day), P646-150 covers 2,600 sq ft (150 pints/day), and P646-190 covers 3,300 sq ft (190 pints/day). Select based on space size and severity of moisture infiltration.
Does the Namco P646-190 need manual drainage?
No. The P646-190 has an automatic pump-out system that continuously drains collected water to a floor drain or drainage hoseβ€”no manual bucket emptying required for unattended long-term operation.
What power does the P646-190 require?
The P646-190 uses a NEMA 5-15P standard 3-prong plug at 110–125Vβ€”compatible with standard residential and commercial outlets, no dedicated circuit required.
Can the Namco P646-190 be used for water damage restoration?
Yes. Restoration contractors use the P646-190 in water-damaged crawl spaces to accelerate structural drying. The 190-pint capacity handles the elevated moisture loads in severe water intrusion events faster than lower-capacity models.
Does the P646-190 have air filtration?
Yes. The P646-190 includes a high-performance air filter that captures dust, allergens, and mold spores as air circulates through the machine during the dehumidification process.

Frequently Asked Questions

1. What payment methods can I use?

We accept Visa, MasterCard, American Express, Diners Club, Discover, major debit cards, and digital wallets like PayPal, Google Pay, Meta Pay, and Apple Pay.

2. When will my payment be processed?

Your credit/debit card or PayPal account will be charged when you place your order. Secure payment processing protects your information.

3. Will I receive an order confirmation?

Yes, a confirmation email will be sent to the provided email address once the order is placed.

4. How long does it take to process an order?

Orders are processed within 1-2 business days and then prepared for shipment.

5. How long does it take for my order to arrive?

Estimated arrival time (ETA) is 5-7 business days for all orders.

6. Do you offer warranty?

All our products come with a manufacturer warranty of at least 1 year, depending on the brand.

Compare products

{"one"=>"Select 2 or 3 items to compare", "other"=>"{{ count }} of 3 items selected"}

Select first item to compare

Select second item to compare

Select third item to compare

Compare