CFM Corporation Winter Warm - Small Insert Fans, Burn Only High-Quality Wood

WinterWarm Small Insert

The Fans

Two fans deliver a steady stream of warm air into the room. Use the fall-away handle, (used to operate the damper), to control fan settings. (Fig. 11)

The fan speed should be set at “low” when operating at low to medium burn rates. The fan speed may be set anywhere between “low” and “high” when operating at high burn rates.

HIGH	LOW
OFF	FP1101

Fig. 11 Fan speed control settings.

Burn Only High-Quality Wood

The WinterWarm Small Insert is designed to burn natural wood only; do not burn fuels other than that for which it was designed.

You’ll enjoy the best results when burning wood that has been adequately air-dried. Avoid burning “green” wood that has not been properly seasoned or cordwood that is more than two years old.

The best hardwood fuels include oak, maple, beech, ash, and hickory that has been split, stacked, and air- dried outside under cover for at least one to two years.

For areas that do not have a supply of hardwood, com- monly burned softwoods include tamarack, yellow pine, white pine, Eastern red cedar, fir, and redwood. These too should be properly dried.

Your WinterWarm Small Insert will accept wood up to 18” (460mm). Longer wood pieces work better than short ones.

Wood should be stored under cover to maintain dry- ness. Even for short-term storage, however, keep wood a safe distance from the heater and keep it out of the areas around the heater used for re-fueling and ash

removal.

Use the Air Control Settings that Work Best for You

No single air control setting will fit every situation. Each installation will differ depending on the quality of the fuel, the amount of heat desired, and how long you wish the fire to burn.

The control setting also depends on your particular installation’s “draft,” or the force that moves air from the stove up through the chimney. Draft is affected by such things as the length, type, and location of the chimney, local geography, nearby obstructions, and other factors.

Too much draft may cause excessive temperatures in the WinterWarm Small Insert, and could even damage the combustor. On the other hand, too little draft can cause backpuffing into the room and/or the “plugging” of the chimney or combustor.

How do you know if your draft is excessively high or low? Symptoms of too much draft include an uncontrol- lable burn or glowing-red cast iron. A sign of inadequate draft is smoke leaking into the room through the stove or chimney connector joints, low heat, and dirty glass.

In some newer homes that are well-insulated and weather-tight, poor draft may result from insufficient air in the house. In such instances, an open window near the stove on the windward side of the house will provide the fresh air needed.

Another option for getting more combustion air to the stove is to duct air directly from the outside to the stove. In fact, in some areas provisions for outside combustion air are required in all new construction. To duct outside air to your WinterWarm Small Insert, use Outside Air Kit #3252 available from your Vermont Castings dealer. Follow the installation instructions included with the kit.

When first using the stove, keep track of the settings of the air controls. You will quickly find that a specific setting will give you a fixed amount of heat. It may take a week or two to determine the amount of heat and the length of burn you should expect from various settings.

Most installations do not require a large amount of combustion air, especially if adequate draft is available.

Do not for any reason attempt to increase the firing of your heater by altering the air control adjustment range outlined in these directions.

Use the following primary air control lever and fan speed control lever settings as a starting point to help

determine the best settings for your installation.

WinterWarm Small Insert Control Settings

Primary Air		Air Circulation
Burn	Control	Fan	Control
Rate	Setting	Speed	Position
High	2:00	High	Horizontal
Medium	3:00 - 4:00	Low	Turn clockwise
Low	4:30	Off	Turn Counterclockwise

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