CSA B365-17 Installation Code for Solid-Fuel-Burning Appliances and Equipment. Standard by CSA Group,. View all product details. Immediate download $150.00.

These sections have all been combined into a single cat­egory under Annex G in the new document. This has been done because many of the requirements within these sections were con­sidered to be subjective in nature, and difficult if not impossible to enforce. To reflect this, the words “shall” have been replaced with “should”. While there are many arguments for and against the revisions to these sections, we urge members to do their best to comply with the recommendations posted within this annex. This will help to ensure WETT maintains a positive, professional reputation in the minds of the public. Hazardous Locations This section can now be found under clause 4.3 in the new document.

Language dealing with the installation height of appliances has been clarified. The wording now reads, “Any component representing a source of ignition, such as a blower or the bottom of the firebox, is at least 450 mm (18 inches) above floor level.” The old wording was open to much interpretation. Tosti na denj rozhdeniya na kirgizskom yazike full.

It stipulated that the “appliance” must be mounted 18 inches above floor level. To be sure, the height of the appliance’s pedestal or legs was being factored in as part of the appliance. This resulted in platforms that were taller than they needed to be to satisfy the intent. Even with the revision, installers will still need to check with their local-authority-having jurisdiction as to what they want to see to satisfy the requirement for protection against physical damage.

Venting Flue Gases Tees are now required in certain liner applications. This new clause (6.2.7) stipulates that a tee is mandatory for a liner system connected to a free-standing space heater, or a hearth-mounted stove that is rear-vented. This does not apply to fireplace inserts or to hearth-mount appliances that are top-vented. Why the change?

It just makes good sense to use a tee in these applications as is it improves inspection and maintenance access. If you were already doing this anyway – good for you!

Section 6.4.2 in the new code makes some subtle changes to the requirements for horizontal sections of single-wall flue pipe that should not be overlooked. The wording has been revised to ensure that effective lengths of elbows are factored in when determining the overall length of a horizontal flue pipe. Before, it could be interpreted that 3 m (10 feet) of straight pipe was permitted along with up to 180 degrees of elbow. This was never the intent. It is important to note that a 90 degree elbow is roughly equivalent to five feet of straight pipe in terms of resistance. You would be at maximum hori­zontal flue pipe length with single-wall pipe if you used just two ninety degree elbows or four forty-five degree elbows.

And while we should not have to say it, elbows should never be included within a flue pipe solely as a means of reclaiming heat from flue gases. This is a bad idea that will only slow down draft and result in excess accumulations of creosote! Readers will also note that a diagram that is commonly referred to has been moved. This diagram shows a cross-section of a breech pipe installed through a combustible wall and into a masonry chimney (Figure 2 on page 23 in the old CSA B365-01).

This diagram has been relocated to the back of the new CSA B365-10 and relabeled as Annex H – Breech Pipe Installation. Installation of Appliances – Spark & Ember Protection Good news!! Wording under section 8.1.3.2 helps to clear up a common problem installers sometimes face when deal­ing with spark & ember protection on floors. Code requires a minimum 200 mm (8 inches) of protection on the sides and rear for wood stoves, yet many of today’s appliances are certified to be installed with much less clearance to a wall if appropriate heat shields are used. In these instances, the floor protection can be less than 200 mm providing the pad butts up tightly to the wall’s base.

The key to this new wording is that floor protection applies only to combustible surfaces beneath the appliance. Jumping sparks and embers are not likely to stick to a wall (especially at the rear of the appliance), so this revision just makes good sense and keeps up with the more tolerant clearances required by today’s stove designs. One thing to keep in mind though just because you can install an appliance with minimal clearance does not mean you should.

Always keep in mind that someone may have to get behind that appliance down the road to look at a certifica­tion label, or to work on a fan or other component. They will not appreciate it if the appliance has to be removed in order to get access (this point is actually a code requirement – see section 8.2.1 on page 16). Sections 8.1.4.2, 8.1.4.3, and 8.1.4.4 under Radiant Heat Protection all feature a slight rewording to clarify intent when it comes to installation of appliances with no legs or short legs. The language is now more specific. Clearances should be measured between the “firebox bottom” and the ember pad, instead of between the “appliance bottom” and floor pad. Again, under the old version, some could make the argument that the measurement applied to the very bottom of any legs, an ash pan, shields, or any other portion forming part of the appliance.