Majestic Appliances BC36 Chimney Requirements - Offset Installations, 30˚ Elbow Offsets, Rise

Majestic Fireplaces® BR/BC Series

		Chimney Requirements - Offset Installations																												OFFSET
		CHIMNEY FLUE EXIT
											CHIMNEY																	RISE
											SECTION								30˚														FP282
												ELBOW														30˚ Elbow Offsets
																		RETURN
												B			G			ELBOW												Chimney Support
	A																								1'	1¹⁄₂	'	3'	4'		Offset		Rise
																	30˚						G
																			0	0		0			0	0	3"		11"
				D													OFFSET
																									1	0		0	0	0		8¹⁄₄"	20"
																	ELBOW
							6 FT.			RISE															2	0		0	0	0	13¹⁄₂"		29¹⁄₄"
				C				E									30˚				SKCS8				0	1	0		0	0	11¹⁄₄"		25¹⁄₄"
																									1	1		0	0	0	16¹⁄₂"		34¹⁄₄"
														H		RETURN					SUPPORT
						OFFSET											ELBOW								0	0		1	0	0	20¹⁄₄"		40³⁄₄"
																						H			2	1		0	0	0	21³⁄₄"		43¹⁄₂"
		B															30˚								0	0		0	1	0	26¹⁄₄"		51¹⁄₄"
																									0	1		1	0	0	28¹⁄₂"		55¹⁄₄"
																OFFSET
																ELBOW
																									1	0		0	1	0	31¹⁄₂"		60¹⁄₄”
																									0	1		0	1	0	34¹⁄₂"		65¹⁄₂"
							HEARTH
																									0	0		2	0	0	37¹⁄₂"		70³⁄₄"
							FLOOR
																									1	1		0	1	1	41¹⁄₂"		77³⁄₄"
		Example 1											Example 2							Example 3					0	0		1	1	1	45"		83³⁄₄"
																									0	1		2	0	1	47¹⁄₄"		87¹⁄₂"
Notes: G + H cannot exceed 20 feet.																								FP269
																									0	0		0	2	1	51"		94"
			Air Space Clearances: SK8 (2-wall) = 1¹⁄₂" and "S" Series (3-wall) = 2"
																									0	1		1	1	1	53¹⁄₄"		98"
Illustration Key																									0	0		3	0	1	56¹⁄₄"		103¹⁄₄"
														C. The chimney cannot be more than 30˚											0	1		0	2	1	59¹⁄₄"		108¹⁄₂"
The following safety rules apply to
														(45˚ in Canada) from the vertical plane in											0	0		2	1	1	62¹⁄₄"		113¹⁄₂"
offset installations (letters correspond														any installation*.
																									0	1		3	0	1	64¹⁄₂"		117¹⁄₂"
with illustration above):
														D. The maximum length of the angled run											0	0		1	2	1	68¹⁄₄"		124"
A. Height of the chimney is measured
														of the total chimney system is 20 feet. (G											0	1		2	1	1	70¹⁄₂"		128"
from the hearth to the chimney exit.														plus H cannot exceed 20 feet.)
																									0	0		0	3	1	74¹⁄₄"		134¹⁄₂"
					BR/BC36 BR/BC42									E. A chimney support (Model SKCS8)											0	1		1	2	2	78"		140³⁄₄"
														is required every 6 feet of angled run of											0	0		3	1	2	81"		146"
Maximum:					90'0"				90'0"
														chimney. Chimney supports are required
																									0	1		0	3	2	84"		151¹⁄₄"
Minimum:
														for every 30 feet and 60 feet (SK8 pipe)
	Without Elbows				12' 6"				12' 6"																0	0		2	2	2	87"		156¹⁄₂"
														or 20 feet and 40 feet (3-wall pipe) of ver-
	With 2 Elbows*				14' 6"				14' 6"																0	1		3	1	2	89¹⁄₄"		160¹⁄₄"
														tical chimney height above the hearth.
	With 4 Elbows*				21' 0"				21' 0"																0	0		1	3	2	93"		166³⁄₄"
														Determine the offset distance of your
B. Do not use more than 4 elbows per																									0	1		2	2	2	95¹⁄₄"		170³⁄₄"
														chimney arrangement from the centerline
																									0	0		0	4	2	99¹⁄₄"		177³⁄₄"
chimney.
														of the fireplace to the centerline of the
																									0	1		1	3	2	101¹⁄₄"		181³⁄₄"
Attach the straps of the return (top)														chimney where it is to pass through the
																									0	0		3	2	2	104¹⁄₄"		186¹⁄₄"
elbow to a structural framing member.														first ceiling.
																									0	1		0	4	2	107¹⁄₄"		191¹⁄₂"
The offset (first) elbow of any pair does														NOTE: This offset distance may not be
																									0	0		2	3	2	110¹⁄₄"		196³⁄₄"
not have straps.														your full offset distance. See Examples 2
																									0	1		3	2	3	114"		203¹⁄₄"
														and 3.
* In Canada, two (2) SK845 are allowed.																									0	0		1	4	3	117³⁄₄"		209³⁄₄"
																									0	1		2	3	3	120"		213¹⁄₂"
																									0	0		0	5	3	123³⁄₄"		220"

Fig. 6. Chimney system requirements.

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