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Important

Air bricks are designed to allow air to flow either in or out for the purpose of ventilation. This purpose is the most important factor, so when comparing air bricks remember not to look just at the design but also the free air flow of the air brick - the higher the better. Generally air flows through holes not metal so when looking for a cast iron air brick with a good air flow choose a simple traditional design.

We have numerous designs of air bricks with correspondingly varying levels of free air flow.

Here are a selection.....

item 31 and item 32, item 1 , item 3 and item 9

compare air bricks from end

compare cast iron air bricks

 

 

Cast Iron Air bricks can be used as air inlets and exhaust outlets in the following situations :-

  • Suspended Floor Air Vents,

  • Tumble Dryer Outlets

  • Kitchen Extractors Outlets

  • Hob Extractor Outlets

  • Bathroom, WC and Laundry Extractor Outlets

  • Roof Space Vents

  • Room Ventilation for Gas, Solid Fuel and LPG Fires

  • Compartment/Room Ventilation for Gas and Oil fired boilers

  • Fresh Air Vents

  • Inglenook Inlet Vents

Use the schoolboard boxed frame reverse in multiples to make up larger vents, for example:-

18x18
18" x 18"
24x9
9" x 24"

Sizes that can be made up in this way are:-

9" x 12", 9" x 18", 9" x 24", 18" x 18", 18" x 12", 9" x 27",

6" x 18", 6" x 27", 15" x 9", 12" x 12", 18" x 27"

 




 Installation
Image

Above is a typical rotten vent circa 1800s which can easily be replaced utilizing a cast iron airbrick like the ones below.

New cast iron repro 9"x3"      cast iron air brick

Most of our cast iron air bricks should be suitable for listed properties (subject to conservation approval) and should  be ideal modern replacements for defective and missing grills in restoring many other Georgian, Victorian and Edwardian properties.

Period Property Extensions

- Extensions to Georgian, Victorian and Edwardian properties deserve sympathetic care and treatment so your extension works in harmony with the existing building. 

Your building control will insist you meet modern ventilation requirements and may expect vent fans in kitchens, cloak rooms and bathrooms. The conservation department will be more concerned with how it looks - the cast iron reproduction vents should appease both parties.

Please scroll down individual product web pages to see full specifications and product free air vent flows.

New Builds

These cast vents are ideal for outside walls for Hob Extractors, tumble dryers, kitchen and bathroom fan outlets (9" x 6") and under floor ventilation (9" x 3") if there is wooden suspended flooring.

Heavy Duty Range

The heavy duty 9" x 3" Cast Iron vents weigh nearly 2KG and the 9" x 6" weigh 3.25KG and are up to 1/2 inch thick in places and therefore should last several lifetimes. They are very strong and fit in place of the brick(s) but all that metal comes with a price as they have a much lower free air flow rate than simpler designs.

Contract Range

Almost exact replicas of Victorian and Edwardian utility square hole air bricks, these schoolboard range are available individually or in packs of ten and have excellent flow rates for maximum ventilation.

schoolboard cast iron

Restoration

- Missing or corroded air vents along the bottom of outside walls for under floor ventilation can be replaced using these cast iron replacements and should fit with little or no adjustments except for bedding in with mortar (lime based mortar for listed Georgian properties and early Victorian).

Replacing Plastic Grills

- The appearance of dryer vent outlets, hob extractor and kitchen and bathroom fan outlets can all be improved using cast vents over the ducting outlet. For the cast bricks to sit flush within the brick work some work will be required to the brickwork and the ducting may need shortening slightly although the overhaul effect is worth the effort. Our louvre vents are particularly suited as extractor outlets or in areas were prevailing winds are a problem.

Disclaimer- All the information supplied regarding the suitability of our cast iron air bricks for various ventilation scenarios shown on castironairbricks.co.uk or given by any of our representatives is given in good faith and is for guidance only. A qualified architect, local building regulations officer and/or Corgi registered plumber if applicable should be consulted prior to installation if in doubt. In the case of installation on a listed building, permissions from the local authority should be sought from the conservation officer before any work is carried out, even to replace damaged items.

We specialise in cast iron grills and antique cast iron ware, metal and cast iron air brick replacement. We also have grill cast iron, cast iron grate and grates plus metal air vents, architectural vents and all cast iron air vents and cast iron air vents. Whilst our cast iron vent grills and cast iron air bricks are not Victorian or antique they are heavy duty reproductions which will replace or repair cast iron vents and grills.