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A small, metallic mechanical component with a hinge and adjustable screws, resembling parts used in window actuators, is placed on a white background.

Illustration of a wall-mounted pull-out drying rack with a rectangular frame, diagonal support bars, and three hooks for hanging items, seamlessly integrated with natural ventilation features.

T175 – Locking Opener

Highline Locking Opener (T175) for use with manual window operator on most bottom-hung open in windows and vents. Unit is ideal for use on windows with minimal clearance.

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In stock, next day delivery

250mm opening stroke (adjustable)
Suitable for Inward Opening windows
Supplied with mounting bracket

Colour

Black Grey White

Stroke

250mm

Window Type

T175 Data Sheet

T250 – Midi Operator

Highline Midi Window Operator (T250) for use with manual chain openers (T100) to operate high level windows. Please Note: The T250 cannot be used with the T150 chain opener – Use the longer T260 operator.

T300 – Mini Operator

Highline Mini Window Operator (T300) for use with manual window openers (T100, T150, T175, T190 or SJ138600) on high level windows and vents.

T260 – Midi Operator

Highline Midi Window Winder (T260) for use with manual chain opener (T150) to operator high level windows.

T200 – Maxi Operator

Highline Maxi Window Operator (T200) is a heavy duty handle operator designed for use with multiple openers (T100, T150, T175, T190, SJ138600) or on heavier vents.

T210 – Maxi Operator

Highline Maxi Window Operator (T210) is a heavy duty manual handle operator designed for use with multiple openers (T100, T150, T175, T190 or SJ138600) or on heavier vents.

Natural Ventilation Smoke Ventilation

Key changes in the design of Smoke Ventilation with BS 9991:2024

The long-awaited BS 9991:2024 – Fire safety in the design, management and use of residential buildings, represents one of the most significant overhauls to residential fire safety in nearly a decade.

Smoke Ventilation

What is a Smoke Ventilation System and why every building needs one

During a fire, smoke moves rapidly through a building, making it one of the biggest threats to life and property. Smoke inhalation is the leading cause of fire-related deaths, which is why every building should have a smoke ventilation system to efficiently remove smoke and heat.

Manual Window Control Natural Ventilation Control

How many types of ventilation are there?

There are many types of ventilation, many of which are categorised as a form of smoke ventilation or natural ventilation. Providing buildings with ventilation controls is essential for complying with Approved Document B – Fire Safety, or Approved Document F – Ventilation of the UK Building Regulations.

Smoke Ventilation

Our quick guide to AOV window regulations

Natural Ventilation Control

How do electric window openers work

Generally, electric window openers, also known as electric window actuators, are operated remotely.

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Related Products

T100 – Chain Opener

Highline Manual Window Opener (T100) for use with manual window operators on high level windows. With this manual winding gear the user can control individual or multiple sets of windows from a single handle operator. Supplied complete with vent bracket.

Colour

Anthracite Black Grey White

Stroke

250mm

Window Type

Bottom-Hung Side-Hung Top-Hung

T150 – Chain Opener

Highline Manual Window Opener (T150) for use with Window Winding Gear on high level windows and vents. Please Note: The T250 cannot be used with the T150 chain opener – Use the longer T260 operator. Supplied complete with vent bracket. Additional fixing plates available.

Colour

Anthracite Black Grey White

Stroke

380mm

Window Type

Bottom-Hung Side-Hung Top-Hung