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Powrmatic exhaust flue fan NVx90-140 (Torin 077445 DSF180-042)

Powrmatic

Powrmatic exhaust flue fan NVx90-140 (Torin 077445 DSF180-042)

Genuine Powrmatic exhaust/combustion fan for the NVx90, NVx120 and NVx140 gas-fired warm air unit heaters.

At a glance

  • Also known as 3481132
  • Fit by a Gas Safe registered engineer
Manufacturer part no.
NVX90140
Showing prices

£1,056.08

£880.07 ex. VAT · VAT at 20%

Available to order · 1 working day
Available to order · 1 working day
Not certain it's the right part? The technical team verifies fitment before dispatch — no charge, and it stops a second trip.Call the technical teamSend a technical question

Same-day dispatch

Ordered by 4pm Mon–Fri, 10:30am Sat.

30-day returns

Unused, in original packaging.

What it is

The NVx range from Powrmatic Ltd (Ilminster, Somerset) are gas-fired, fan-circulation warm air unit heaters with a closed combustion circuit, covering heat outputs from 10kW to 140kW for commercial and industrial premises. This fan is the internal exhaust/combustion fan, mounted downstream of the heat exchanger, that evacuates the products of combustion and draws in air for combustion on the NVx90-140 models. On start-up the exhaust fan runs first, and only once sufficient airflow is proved by the air pressure switch does ignition proceed.

Signs this part needs replacing

  • Exhaust fan fails to run, preventing the burner from proving airflow and lighting
  • Unusual noise, vibration or bearing wear from the fan
  • Appliance locks out at the air pressure switch check

Before you order

  • Confirm your heater model (NVx90, NVx120 or NVx140) before ordering - the NVx10-50 and NVx60-75 use different exhaust fans
  • Isolate the electrical supply and close the gas service valve before servicing
  • Fit by a Gas Safe registered engineer

Not sure which part?

Search by part number, product name or brand — our technical team confirms fitment before anything is dispatched.