To support the weight of the niche and chimney, supplying must be made in the foundation plans. Most plans use a solid reinforcement for concrete footer. This notation is usually 12 (305mm) thick and extends at least 12 (305mm) time the perimeter of the chimney.
Fireplaces are fashioned in three types:
1. Constructed totally on the site.
2. Using a manufactured firebox and pipework system.
3. Freestanding units.
Major components of niche and flue structure:
1. firebox
2. chimney
3. respiration chamber
4. pipework support
5. damper
6. throat
7. poise anchor straps
8. cap
9. terra cotta pipework lining
10. face
11. respiration shelf
12. angle-iron brace
13. hearth
14. ash pit
15. footing
Fireplace
The main part of the niche is the firebox. The firebox reflects modify and draws respiration up the chimney. Included in the firebox are the sides, back, respiration chamber, flue, throat and damper. Most of the fireboxes are constructed in a factory. The creator places the firebox in the proper positioning in the flue construction and lines it with firebrick. Materials used in fireplaces and chimneys is usually of brick, stone or concrete. Hearth should be constructed of fire-resistant material such as brick, tile, marble or stone. The best method of drawing the construction details of a niche is to educate a sectional drawing. This will show the position of the firebox and the filler of materials used in the footer, hearth, face, pipework and cap of the chimney. Showing also the relationship of the flue to the story and ceiling lines of the structure.
Chimney
Extending from the notation finished the roof of the house is the chimney. The notation must be of decent filler to support the entire weight of the chimney. The flue extends above the roof line. Its peak above the roof line varies, local building codes in most areas scale its distance as 2′ (610mm). The flue is secured to ceiling and story joists by iron straps embedded in the brick work. The creator must also indicate the type and filler of flues to be inserted in the chimney. One pipework is necessary for each niche or furnace leading into the chimney. Fireplaces add warmth and atmosphere to a room. However, most of the modify produced by some fireplaces goes up the chimney. To reduce this modify loss and redirect some of this heat, warm-air outlets, balanced by cold-air outlets, can be installed.
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