Masonry Fireplace Firebox Dimensions

The size of fireplaces will vary but masonry fireboxes should be at least four inches thick and 20 inches deep.

Masonry fireplace firebox dimensions.

In each direction to mark the 42 in. Once the area was tented it was time to layout the base of the firebox on the slab. Thus the best performance is generally achieved when the inlet is located near the front of the fireplace within the combustion chamber. 2 generally ranges from 6 to 60 sq in.

The throat shall not be less than 8 inches 203 mm above the fireplace opening. Fireplace design details checklist sides of firebox must pinch in towards back back wall of fireplace must be straight up for first 12 inches back wall must slope towards front for remainder of height width and height of opening must come from table below smoke shelf up above fireplace must be sized. Then he draws a centerline and measures out 21 in. Brickwork should be strong enough to hold any decorative stone or other materials used on the exterior of the fireplace.

The throat opening shall not be less than 4 inches 102 mm deep. The air inlet damper assembly area as shown in fig. 400 mm in front of the fireplace opening. Prefabricated fireplaces factory built or prefabricated fireplaces are relative newcomers to the fireplace scene.

Hearth may be a reinforced brick masonry cantilever. 3870 to 38 700 mm2 depending on the other components in the exterior air supply system. He draws a line along the back to establish the 20 in. The firebox of a concrete or masonry fireplace shall have a minimum depth of 20 inches 508 mm.

This article series provides information about masonry fireplaces. Mike begins by snapping a chalkline to mark the front face of the fireplace. Our conventional model is compatible with either masonry chimneys or ul 103 metal chimney systems. Typical firebox assembly.

If the fireplace opening is greater than 6 ft. To provide adequate draft and safe venting of combustion products the chimney flue for a fireplace has to be adequate in size or cross sectional area. Unlike traditional masonry fireplaces most factory built fireplaces are metal and come from the factory as complete units with a firebox a specific chimney system and all miscellaneous parts. 30 36 42 and 48.

Single face fireplace dimensions including the firebox depth width and height along with the proportionate flue size are given in technical notes 19. Oversized models available in 60 and 72 openings with dual chimney systems. The technical notes address all the necessary features in a brick fireplace and their relationship to one another. Model building codes also require that the hearth extend a minimum of 8 in.

Details are provided in technical notes 19a while proper chimney construction is outlined in technical notes.