You are using an outdated browser version not supported by this website.
Click here to upgrade your browser

Bathroom Ventilation System Through Wall via Bulkhead

A ceiling or wall mounted extraction fan system for bathroom ventilation, ducted up to 3m through bulkhead or mid floor to exterior wall.

Key Features
  • Flexibity — more options for the location of the installation
  • Design assistance: Hometech staff are available to advise on design requirements and if required offer a design service suitable for PS1
  • Exceeds Healthy Homes requirement for bathroom or laundry ventilation
  • Wall switch control, optional timer, optional humidity sensor
Scope of Use
  • Options for up to 2 rooms
  • Ground or mid-floor installations
  • Bathrooms, toilets, laundries
  • Extract though bulkhead or mid-floor 


  • Diameter: 150mm 
  • Duct run: up to 3m
  • Fire protection available that is compliant to AS/NZS 15304.4:2014
Limitations on Use
  • Low voltage (SELZ) fan options should be used in Bathroom Electrical Zones 1 and 2, with remote mounted transformer installed beyond Zone 2
  • For installations over more than 3m speak to Hometech before specifying
  • All fans to be connected to an isolating switch as per AS/NZS 3000:2018
Statement of Building Code Compliance

Meets the following provisions of the NZBC:

  • B2: Durability
  • E2: External Moisture
  • G4: Ventilation

Healthy Homes:

  • Extraction air volume exceeds 25l/s for bathrooms, and/or 40l/s for laundries


  • Fire protection available that is compliant to AS/NZS 15304.4:2014
Other Performance Attributes
  • Air Flow: 70l/s
  • Power: 35W 


  • 1 year fan motor warranty
  • 10 years for materials and workmanship

Terms and conditions apply.

HTBKBH: Bathroom Kit via Bulkhead
CAD/PDF Details
Ceiling/Wall Fan 150
External Wall Cowl

Hometech, the ventilation specialists, have been helping Kiwis for over 30 years to create healthier homes.

Product Enquiries

News from Hometech

Ensure a Cool Summer with Hometech's Solar Fan NEW
Hometech Provides Extract Ventilation for Kāinga Ora Project
Minimise Moisture in the Roof Cavity
Get a free weekly digest of essential news

New and updated architectural products, design solutions, inspiration, technical advice and more when you sign up for EBOSS.