Morgan & Company HEARTHSTONE 8470 User Manual download pdf (Page 19)

HearthStone Quality Home Heating Products, Inc. ® Morgan Model 8470

(200 degree C) stovepipe confirms the Fireplace Insert is

supplying sufficient heat. Keep in mind that your house

itself will regulate room/house temperatures. How well

the walls, floors and ceilings are insulated, the number

and size of glass windows, the tightness of outside doors,

and the construction or style of your house (vaulted

ceilings or other open spaces which collect large

percentages of heat, ceiling fans, etc.) all are determining

factors of room temperature.

Your Fireplace Insert's performance is also dependant on

its installation. One common cause of poor performance

is an oversized chimney flue. Oversized chimney flues

result in decreased pressure, which prevents the smoke

from rising out the chimney. Oversized flues are also

more difficult to heat effectively, especially when burning

a high efficiency Fireplace Insert. Cool flue temperatures

inhibit the establishment of a strong draft (and encourage

the accumulation of creosote). The lack of a strong draft

will cause the fire to die down and may even force the

smoke to pour into the room. If your chimney is the

proper size and a strong draft is not easily established,

there is the possibility of the chimney being too cold.

Again, hot chimneys promote a stronger draft.

Other draft guidelines are as follows:

AN "AIRTIGHT" HOUSE: If your home is super-

insulated or especially well sealed, the (infiltration) air

supply to the interior of the house may be inadequate.

This phenomenon of air starvation within the building can

be exacerbated if exhaust fans, such as clothes dryers,

bathroom fans or cookstove exhaust fans, are in operation

within the home.

TALL TREES OR BUILDINGS: These obstructions,

when located in proximity to the top of the chimney can

cause chronic or occasional downdrafts. When selecting

a site for a new chimney, take care to consider the

placement of other objects near the proposed chimney

location.

WIND VELOCITY: Generally, the stronger and

steadier a wind, the stronger (better) the draft. However,

"gusty" wind conditions may cause erratic downdrafts.

BAROMETRIC PRESSURE: Chimney drafts are

typically sluggish on balmy, wet or muggy days. This is a

weather-related phenomenon, which generally is self-

correcting as the weather changes.

BRISKNESS OF FIRE: The hotter the fire in your

Fireplace Insert, the hotter your chimney and, therefore,

the stronger the draft.

BREAKS IN THE VENTING SYSTEM: An unsealed

clean-out door at the bottom of the chimney, leaky

stovepipe joints, a poor stovepipe-to-thimble connection,

or a leaky chimney may cause inadequate draft.

SEASONAL FACTORS: Early fall and late spring are

generally difficult seasons in which to establish proper

drafts. The colder the outside air is (relative to room

temperatures) the stronger the draft.

Operating the Fireplace Insert

There are days when a draft is not easily established. As

outlined above, seasonal factors or a cold chimney may be

the cause. Try starting the fire by using small kindling

and fuel to obtain a quick, hot fire. Tend the fire

frequently with small fuel until the chimney is hot and the

draft is well established.

DISPOSAL OF ASHES

Ashes should be placed in a metal container with a

tight fitting lid. The closed container of ashes should

be placed on a non-combustible floor or on the

ground, well away from all combustible materials,

pending final disposal. If ashes are disposed of by

burial in soil or otherwise locally dispersed, they

should be retained in the closed container until all

cinders have thoroughly cooled.

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Morgan & Company HEARTHSTONE 8470 User Manual Page 19

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