Vermont Casting WinterWarm Fireplace Insert or System Guidelines for an Outside Air Supply

WinterWarm Fireplace Insert or System

	Chimney Cap
Flashing	Storm Collar
	Roof Support Package

Firestops
	Wall Band
	Offset
	Firestop
Chimney Section
Anchor Plate	89"
	(2260mm)
Front	Cabinet
	FP1094

Fig. 30 Typical chimney components used in the installation of a WinterWarm Fireplace System.

The listed chimneys and their manufacturers are:

American Metal Products	Ameri-Tec Model HS
Condensation
Engineering Corp.	Model HS
GSW Building Product Co.	Model SC
Metal Fab, Inc.	Model TG
Security Chimneys Ltd.	Model ASHT
Selkirk Metalbestos	Model SSII
Simpson Dura-Vent	Model SDP

In the United States, do not use any other chimney system with the WinterWarm Fireplace System.

In Canada, the WinterWarm Fireplace System is listed for use with any 200 mm diameter prefabricated chim- ney tested and listed to the High Temperature (650°C) Chimney Standard, ULC S-629.

Guidelines for an Outside Air Supply

Outside air may be introduced to the WinterWarm at either of two available ports: at the lower left corner of the back of the cabinet (as viewed from the front), or at the lower left corner of the left side panel.

An outside air duct must be 3” (75 mm) in diameter, must be no longer than 20’ (6 m), and must not have more than three elbows. No part of the outside air duct (including the outside air inlet) may be higher than the

cut-out panel on the WinterWarm shroud, and it should terminate at an outside air source. It may not terminate in a garage or basement, nor near another fuel-fed ap- pliance. The air inlet must be covered by a wire mesh screen (not included) with openings not larger than 1/4” x 1/4” (6 x 6 mm) to prevent rodents from entering from the outside. The optional duct kit includes a valve to close off incoming air when the WinterWarm is not in use.

Hearth Requirements

Unless the Fireplace System Cabinet will be installed on a completely noncombustible surface such as unpainted concrete over earth, a floor protector must be used in the installation for protection against radi- ated heat as well as protection against spilled coals and embers.

Floor protectors must extend at least 8” (203 mm) from the side of the door opening, making a total width of 40” (1016 mm). In addition, the floor protector must extend from the front door opening a minimum of 16” (410 mm) in the United States and 18”(460 mm) in Canada. (Fig. 31)

Flue

Collar

Glass

Door

B	A	B
		FP1086
	C
United States		Canada

A. 16“	(406 mm)	18”	(457 mm)
B. 8” (203 mm)		8” (203 mm)
C. 40”	(1016 mm)	40”	(1016 mm)

NOTE: Measuring from the door opening of the insert to the fire- place opening adds 3¹⁄₂” (90mm) to the total depth of the hearth protector.

Fig. 31 A floor protector must satisfy these requirements.

The approved construction of a floor protector calls for 24 gauge galvanized sheet metal covered with a listed floor protector material that is at least 7/16” (11 mm) thick (such as Wonderboard® or Durock®). The floor protector may be covered with a noncombustible deco- rative material if desired.

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