Carmina Gadelica, Volume 1, by Alexander Carmicheal, [1900], at sacred-texts.com

PEAT is the fuel of the Highlands and Islands. Where wood is not obtainable the fire is kept in during the night. The process by which this is accomplished is called in Gaelic smaladh; in Scottish, smooring; and in English, smothering, or more correctly, subduing. The ceremony of smooring the fire is artistic and symbolic, and is performed with loving care. The embers are evenly spread on the hearth--which is generally in the middle of the floor--and formed into a circle. This circle is then divided into three equal sections, a small boss being left in the middle. A peat is laid between each section, each peat touching the boss, which forms a common centre. The first peat is laid down in name of the God of Life, the second in name of the God of Peace, the third in name of the God of Grace. The circle is then covered over with ashes sufficient to subdue but not to extinguish p. 235 the fire, in name of the Three of Light. The heap slightly raised in the centre is called 'Tula nan Tri,' the Hearth of the Three. When the smooring operation is complete the woman closes her eyes, stretches her hand, and softly intones one of the many formulae current for these occasions.

Another way of keeping embers for morning use is to place them in a pit at night. The pit consists of a hole in the clay floor, generally under the dresser. The pit may be from half a foot to a foot in depth and diameter, with a flag fixed in the floor over the top. In the centre of this flag there is a hole by which the embers are put in and taken out. Another flag covers the hole to extinguish the fire at night, and to guard against accidents during the day. This extinguishing fire-pit is called 'slochd guail,' coke or coal-pit. This coke or charcoal is serviceable in kindling the fire.