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Airflow & Performance · Anchor Component

Listed Booster Fan (DEDPV)

The sanctioned way to run a duct past the normal length limit. Code caps a dryer run at thirty-five feet of developed length, and every bend eats into that — which is why plenty of two-storey and mid-building laundry rooms are over the limit the day they are framed. A listed dryer exhaust duct power ventilator, installed to its manufacturer's instructions, is what makes those runs legal and functional. It is not a patch for a dirty duct: if the run is simply blocked, cleaning is the fix and a booster would just be an expensive way to push against lint.

Specification

What the listing decides

Base limit
35 ft developed length before deductions (IRC M1502.4.5.1)
Bend deductions
5 ft per 90° bend, 2.5 ft per 45°
Permitted by
Listed DEDPV installed per manufacturer instructions (IRC M1502.4.5.2)

How this part is bought

The part follows the finding

No part in this store is a loose transaction. This one links back to the graded inspection that surfaces the need, and across to the install service it belongs to — both performed by the same trained crew.

Every store quote includes

  • A fit check — duct diameter, developed length, bend count and termination verified against your inspection
  • Written installed pricing before anything is ordered
  • Installation to the component's listing by trained technicians
  • Documentation that closes the finding — so the warranty, your insurer, and the next inspector all see a job done right

Airflow & Performance

Request a quote

No price is listed — that’s the standard, not a sticker. Installed pricing depends on your duct diameter, developed length, bend count and access, and we confirm it in writing after a fit check. No payment is taken online.

15+
Years in the field
IRC M1502
Checklist
48h
Written report
< 2hr
Response
Ready when you are

Get it inspected. Get it in writing.

Flat fee confirmed when you book. Same-week scheduling. A pass/fail verdict within 48 hours.

Licensed & Insured Same-Week Scheduling Photo-Documented Findings
Emergency

24/7 Response

No airflow, overheating dryer, burning smell, or a vent you're not sure about? We answer 7 AM to midnight and the assessment ends in a written safe-to-use verdict — including a do-not-use notice when the evidence supports one. After-hours dispatch runs subject to crew availability.

Emergency line
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