Picture credits

These photographs are used under the licences linked here; where a licence asks for a share-alike, our edited versions are under the same licence. Maker names and logos have been cropped or blurred out where marked. Pictures made by AI carry a note in their caption on the entry.

A white wall-mounted gas boiler on a tiled wall next to a pot plant. Kai Kemmann, source page, CC BY-SA 4.0. Maker names or number plates blurred.

Inside an airing cupboard: a green foam-covered cylinder, copper pipes and a pump, with tools on a towel. Janlepkowski, source page, CC BY-SA 3.0. Maker names or number plates blurred.

A hot water cylinder in a red insulating jacket, with copper pipes and a wall thermostat beside it. SpicyPhoto, source page, CC0. Cropped.

A white gas boiler fitted inside a kitchen wall cupboard with its pipework showing below. Turbojet, source page, CC BY-SA 4.0. Maker names or number plates blurred.

A white hot water cylinder in a wooden cupboard with copper pipes and a brass drain tap. Julie Anne Workman, source page, CC BY-SA 3.0. Maker names or number plates blurred.

Three stained plastic heating oil tanks joined by pipes in a basement. Flux Garden (uploader), source page, CC BY-SA 2.5. Maker names or number plates blurred.

A hand holding a radiator key beside the bleed valve on a white radiator. Sil10napel, source page, CC BY-SA 4.0. Cropped.

A tiled living room with a white panel radiator on the wall, a sofa and a television. gailhampshire from Cradley, Malvern, U.K, source page, CC BY 2.0. Cropped.

A white cast-iron radiator set in a wall recess above a patterned tiled floor. Abraham, source page, CC BY 4.0. Cropped.

A tall white cast-iron radiator with an old valve at one end, on wooden floorboards. Uploader Hautala, source page, CC BY-SA 3.0. Cropped.

A grey cast-iron radiator in a dim workshop, with a second radiator behind it. makantr, source page, CC0. Cropped.

A white room thermostat showing 15.5 degrees, with a dial numbered 1 to 6. SchmiAlf, source page, CC BY 4.0. Cropped.

Snow falling at night on a terraced street lined with snow-covered cars. IDS.photos from Tiverton, UK, source page, CC BY-SA 2.0. Maker names or number plates blurred.

Inside a plastic kettle with pale scale built up on the coil element. Henna, source page, CC BY-SA 1.0. Cropped.

A pile of cream limescale flakes taken out of a kettle. Alexander Davronov, source page, CC BY-SA 4.0. Cropped.

A white chalk cliff with a red and white lighthouse in the sea below. Diliff, Papa Lima Whiskey (edit), source page, CC BY-SA 3.0. Cropped.

A round white carbon monoxide alarm lying on dark wooden boards. Santeri Viinamäki, source page, CC BY-SA 4.0. Cropped.

A tall brick block of flats with balconies behind a row of parked cars. David Howard, source page, CC BY-SA 2.0. Maker names or number plates blurred.

A row of red-brick Victorian terraced houses with bay windows and parked cars. Bill Harrison, source page, CC BY-SA 2.0. Maker names or number plates blurred.

A long red-brick Victorian terrace with bay windows and parked cars along the street. Eric Jones, source page, CC BY-SA 2.0. Maker names or number plates blurred.

A large white air source heat pump standing on grass against a white wall. Djm-leighpark, source page, CC BY-SA 4.0. Maker names or number plates blurred.

A white 1930s semi-detached house with a green tiled roof and a curved bay window. Kolforn (Kolforn), source page, CC BY-SA 4.0. Maker names or number plates blurred.

A steep street of bay-fronted terraced houses and parked cars in heavy snow. Paul Gillett, source page, CC BY-SA 2.0. Maker names or number plates blurred.

An old cottage parlour with a brick fireplace and a cylinder in a red jacket in an open cupboard. Kolforn (Kolforn), source page, CC BY-SA 4.0. Cropped.

A snowy street between stone house walls with a snow-covered white car in front. Robert Graham, source page, CC BY-SA 2.0. Maker names or number plates blurred.

Brick bungalows behind hedges at a quiet road junction. Bob Harvey, source page, CC BY-SA 2.0. Cropped.