CodeChronicle

OBC 2006 Division B

9.21.2.

Version 0 — in force 31 December 2006

In force
Verified · covered Verified against the 2006-12-31–2007-04-01 consolidation, whose range covers the query date. How to read this

Provenance

OBC 1997 · continues from 9.21.2. — Pro

Base · O. Reg. 350/06 · ext← current

Original — base regulation

OBC 2012 · continues as 9.21.2. — Pro

9.21.2. — Chimney Flues

Content not available for this version.

9.21.2.1. — Chimney Flue Limitations

(1) A chimney flue that serves a fireplace or incinerator shall not serve any other appliance.

(2) A chimney flue that serves a solid fuel-burning appliance shall not be connected to a natural gas- or propane-fired appliance.

(3) A chimney flue that serves a solid-fuel burning appliance shall not be connected to an oil-burning appliance unless the solid-fuel burning appliance is listed for such installation and the installation of both appliances meets their respective installation requirements.

Text · e-Laws consolidated snapshot

9.21.2.2. — Connections of More Than One Appliance

(1) Except as required in Article 9.21.2.1.v1, two or more fuel-burning appliances are permitted to be connected to the same chimney flue provided adequate draft is maintained for the connected appliances and the connections are made as described in Sentences (2) and (3).

(2) Where 2 or more solid fuel-burning appliances are connected to the same chimney flue, the appliances must be located on the same storey.

(3) The connection referred to in Sentence (2) for a solid fuel-burning appliance shall be made below connections for appliances burning other fuels.

Text · e-Laws consolidated snapshot

9.21.2.3. — Inclined Chimney Flues

(1) Chimney flues shall not be inclined more than 45° to the vertical.

Text · e-Laws consolidated snapshot

9.21.2.4. — Size of Chimney Flues

(1) Except for chimneys serving fireplaces, the size of a chimney flue shall conform to the requirements of the solid fuel-burning appliance installation standard referenced in Sentence 6.2.1.4.(1) and Article 9.33.1.2.

(2) Where a chimney flue serves only one solid fuel-burning appliance, the flue area shall be at least equal to that of the flue pipe connected to it.

Text · e-Laws consolidated snapshot

9.21.2.5. — Fireplace Chimneys

(1) The size of a chimney flue serving a masonry fireplace shall be within the allowable range specified in Table 9.21.2.5.A. or Table 9.21.2.5.B.

Text · e-Laws consolidated snapshot

Table 9.21.2.5.A. Diameter of Round Flues for Fireplace Chimneys Forming Part of Sentence 9.21.2.5.(1)

Column 1

Column 2

Column 3

Column 4

Column 5

Column 6

Column 7

Column 8

Column 9

Fireplace Opening, m²

Chimney Height, m

3.0 to 4.5

> 4.5 to 5.9

> 5.9 to 8.9

> 8.9 to 12

Flue diameter, mm

Min.

Max.

Min.

Max.

Min.

Max.

Min.

Max.

Up to 0.150

110

170

100

160

90

150

90

150

0.151 to 0.250

150

210

130

190

130

190

120

180

0.251 to 0.350

180

240

160

220

150

210

140

200

0.351 to 0.500

220

280

200

260

190

250

170

230

0.501 to 0.650

260

320

230

290

220

280

200

260

0.651 to 0.800

290

350

260

320

240

300

220

280

0.801 to 1.00

330

390

290

350

270

330

250

310

1.01 to 1.20

360

420

320

380

300

360

270

330

1.21 to 1.40

390

450

350

410

330

390

300

360

1.41 to 1.60

420

480

380

440

350

410

320

380

1.61 to 1.80

400

460

370

430

340

400

1.81 to 2.00

400

460

360

420

2.01 to 2.20

380

440

Table 9.21.2.5.B. Rectangular Flue Sizes for Fireplace Chimneys Forming Part of Sentence 9.21.2.5.(1)

Column 1

Column 2

Column 3

Column 4

Column 5

Column 6

Column 7

Column 8

Column 9

Fireplace Opening, m²

Chimney Height, m

3.0 to 4.5

> 4.5 to 5.9

> 5.9 to 8.9

> 8.9 to 12

Flue Size, mm

Min.

Max.

Min.

Max.

Min.

Max.

Min.

Max.

Up to 0.150

200 × 200

200 × 200

100 × 200

100 × 200

100 × 200

100 × 200

100 × 200

100 × 200

0.151 to 0.250

200 × 200

200 × 200

200 × 200

200 × 200

200 × 200

200 × 200

200 × 200

200 × 200

0.251 to 0.350

200 × 300

200 × 300

200 × 200

200 × 300

200 × 200

200 × 200

200 × 200

200 × 200

0.351 to 0.500

300 × 300

300 × 300

200 × 300

200 × 300

200 × 300

200 × 300

200 × 200

200 × 300

0.501 to 0.650

300 × 300

300 × 400

300 × 300

300 × 300

300 × 300

300 × 300

200 × 300

200 × 300

0.651 to 0.800

300 × 400

300 × 400

300 × 300

300 × 400

300 × 300

300 × 300

300 × 300

300 × 300

0.801 to 1.00

400 × 400

400 × 400

300 × 400

300 × 400

300 × 400

300 × 400

300 × 300

300 × 300

1.01 to 1.20

400 × 400

400 × 400

400 × 400

400 × 400

300 × 400

300 × 400

300 × 400

300 × 400

1.21 to 1.40

400 × 400

400 × 400

400 × 400

400 × 400

300 × 400

300 × 400

1.41 to 1.60

400 × 400

400 × 400

400 × 400

400 × 400

1.61 to 1.80

400 × 400

400 × 400

1.81 to 2.00

400 × 400

400 × 400

9.21.2.6. — Oval Chimney Flues

(1) The width of an oval chimney flue shall be not less than two-thirds its breadth.

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