Alternating air intake and exhaust vents or pipes for boiler or furnace on the outside wall of a building

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Size: 5008px × 2408px
Location: England, UK
Photo credit: © Sam Oaksey / Alamy / Afripics
License: Licensed
Model Released: No

Keywords: air, alternating, boiler, boilers, brick, building, exhaust, flue, flues, furnace, furnaces, heating, intake, keston, pipes, pipework, uk, vent, vents, wall