Vermont Casting 1655, 1656, 1657, 1658, 1659 Canadian Requirements, Floor Protection

Vermont Castings Madison

• Placing a chimney connector pipe inside a section

of 9" (230 mm) diameter, solid-insulated, factory-

built chimney, with two inches of air space between

the chimney section and combustibles. (Fig. 10)

Min. 18"

(460mm) Chimney clearance to sheet steel 2" (51mm)

supports and combustibles Min.

Canadian Requirements:

In Canada, the Canadian Standards Association has established specific guidelines regarding wall pass- though design. Figure 11 shows one approved method in which all combustible material in the wall is cut away to provide the required 18" (460 mm) clearance around the connector. The resulting space must remain empty. A flush-mounted sheet metal cover may be

24 ga. Sheet Steel Support (one side only)

ST276

Flue	Min. 18"
	(460mm)
Chimney	Chimney
	Connector
	24 ga.Sheet
	Steel Support
	Masonry Chimney
	constructed to CAN/CSA-
	B365

used on one side only. If covers must be used on both sides, each cover must be mounted on noncombus- tible spacers at least 1" (25 mm) clear of the wall. Your local dealer or your local building inspector can provide details of other approved methods of passing a chimney connector through a combustible wall.

In Canada, this type of installation must conform to CAN/CSA-B365, Installation Code for Solid Fuel Burning Appliances and Equipment.

Chimney clearance to sheet
steel supports and combustibles		2" (51mm) Min.
Steel Thimble
with two 1"
(25mm) Ventilated		Min. 6"
Channels		(152mm)
	Flue	Chimney Connector
	Chimney	Glass Fiber
Masonry Chimney		Insulation
constructed to NFPA 211
		24 ga.Sheet
		Steel Supports

ST274

Fig. 9 Wall Pass-through using single wall chimney connector with a ventilated steel thimble.

Fig. 11 CSA approved Wall Pass-through.

Floor Protection

A tremendous amount of heat radiates from the

bottom plate of your Madison. The floor area directly

under and around the stove will require protection from

radiant heat as well as from stray sparks or embers

that may escape the firebox.

Heat protection is provided through the use of a

Vermont Castings Bottom Heat Shield #1892. Spark

and ember protection must be provided by a floor

protector constructed with noncombustible material as

specified.

Most installations will require that the bottom heat

shield be attached. Only when the stove is placed on a

completely noncombustible surface such as unpainted

concrete over earth may it be used without the heat shield.

Even when the bottom heat shield is installed, you

must provide special protection to the floor beneath.

For installations with the heat shield attached, use a

noncombustible floor protector such as 1/4” non-

asbestos mineral board or equivalent, or 24 gauge

sheet metal. The floor protector may be covered with a

noncombustible decorative material if desired. Do not

obstruct the space under the heater.

Protection requirements vary somewhat between

the United States and Canada as follows:

For U.S. installations the floor protector is re-

Chimney clearance to sheet steel supports and combustibles

2" (51mm) Min.

air spaceFlue Chimney

Prefab Chimney Section

24 ga. Sheet Steel Supports

ST275

2" (51mm)

Min.

2" (51mm) Min.

Chimney

Connector

Prefab

Chimney

Section

24 ga. Sheet Steel Supports

Masonry Chimney constructed to NFPA 211

quired under the stove and must extend at least 18”

from the front of the stove (“D”, Fig. 12), at least 4”

from the right side and rear (“C”, Fig. 12) and 16” from

the left side (“E”, Fig. 12). It must also extend under

the chimney connector and 2” to either side (“F”, Fig.

12).

To meet these requirements, a floor protector must

be at least 48” wide (“A”,Fig. 12) and 48” deep (“B”,Fig.

12)

In Canada, a noncombustible floor protector is

required under the heater also. The floor protector

Fig. 10 Wall Pass-through with ventilated steel thimble.

must extend 18” (460 mm) to the front (D), and 8” (203

mm) from the right side (C) and rear (C) and 18”

(460mm) from left side (E).

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