Cefn Coed Colliery Boilerhouse is a Grade II* listed building in the Neath Port Talbot local planning authority area, Wales. First listed on 4 February 1991. House.

Cefn Coed Colliery Boilerhouse

WRENN ID
leaning-copper-tallow
Grade
II*
Local Planning Authority
Neath Port Talbot
Constituency
Neath and Swansea East MP: Carolyn Harris (Lab)
Country
Wales
Date first listed
4 February 1991
Type
House
Address
Cefn Coed Colliery Boilerhouse, Crynant
OS grid reference
SN 785 032
Coordinates
51.71483, -3.7595
Source
Cadw listing

Also on this page: flood risk · radon risk · weather exposure · detailed attributes ↓

Description

Cefn Coed Colliery Boilerhouse features a row of six Lancashire boilers that are in excellent condition, dating from their installation in 1926 and 1927. The oldest boiler was re-used from another site and dates back to 1910. In 1958, four of the six boilers were converted to operate on methane gas sourced from the mine workings instead of coal. These boilers are made of wrought iron and are set on a brick plinth, originally standing in the open air. They are now protected by a modern cover structure.

Local climate

Cefn Coed Colliery Boilerhouse sits in one of the wettest parts of the UK, with an average of 1,380 mm of rain a year. This makes it wetter than 97% of listed buildings in the UK. Its exposure to wind-driven rain is greater than that of 96% of listed buildings.

It experiences an average of 28 freeze-thaw cycles a year, fewer than 69% of listed buildings. Of these, 12 follow at least 1 mm of rain in the preceding 48 hours. Average temperatures at this location have risen by 0.3°C per decade since 1991.

Averages for 1991–2020; temperature trend 1991–2025. Figures describe the wider area (a grid cell of roughly 10 km), not the individual site. Contains modified Copernicus Climate Change Service information 2026.

More on this building

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  2. Cefn Coed Colliery, No. 1 Shaft Headframe Grade II* 40 m
  3. Cefn Coed Colliery Engine House Range and Steam Capstan Engine Grade II* 42 m
  4. Cefn Coed Colliery chimney and boiler house flue Grade II* 56 m
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