DS Greenhouse Blast GH450 Owner's Manual - Page 3
Browse online or download pdf Owner's Manual for Furnace DS Greenhouse Blast GH450. DS Greenhouse Blast GH450 13 pages. High efficiency wood or coal furnace
Print Page18. When used in a large greenhouse and they are forecasting a cold night it is advisable to load and fire your
furnace at 3 to 4 o'clock in the afternoon so that you do not fall behind. If you wait till the sun sets to fire your
furnace you may be playing catch up all night. In the morning when it is cold with a sunny day in the forecast
you may want to consider shutting the furnace down at 5 o'clock in the morning so that when the sun comes
out and it warms up so that there's not to much heat in your green house till the furnace fire dies down.
Note: When burning coal, shake ashes every 12 hours if possible. You must keep your ashes cleaned out from
under grating. This may require emptying your ash pan daily. If there is no air space under the grates, the
grates will warp and become inoperable.
Starting A Coal Fire
Fully open Hot-Air Regulator. Place crumpled paper and kindling wood on grate and ignite with match or lighter. Use
a good amount of kindling to get the fire started. Add larger pieces of wood to get a hot fire. Once you have a hot fire,
add 2" of coal over the entire grate area. As the coal starts burning and glowing red add another layer of coal.
Keepadding coal until you have an 8" body of fire. You can now add 50 lbs. of coal, adjust draft on Hot-Air Regulator
to meet your needs. NOTE: You can also use charcoal briquettes for a fire starter.
With new steel there is a small amount of oil or dirt on the metal. You may smell an odor. This is normal during
the first operation. You may want to assemble the furnace out of doors and build a small fire in it to "BURN
OFF" this dirt and oil before installing unit.
Starting A Wood Fire
When starting a wood fire use the same steps as starting a coal fire above, but do not add coal. Allow ash to
build up on top of grates, this will not choke fire until it covers louvers. For most efficient burn, keep approxi-
mately 2" to 3" of ash on grates at all times.
With new steel there is a small amount of oil or dirt on the metal. You may smell an odor. This is normal during
the first operation. You may want to assemble the furnace out of doors and build a small fire in it to "BURN
OFF" this dirt and oil before installing unit.
Creosote – Formation and need for removal
When wood is burned slowly, it can produce tar or other organic vapors, which combined with expelled mois-
ture will form creosote. The creosote vapors condense in the relatively cool chimney flue of a slow burning fire.
As a result, creosote residue accumulates on the flue lining. When ignited, this creosote makes an extremely
hot fire. The chimney connector and chimney should be inspected at least twice monthly during the heating
season to determine if a creosote build-up has occurred. If creosote has accumulated, it should be removed to
reduce the risk of a chimney fire.
NOTE: Firewood must be seasoned for one year. That means cut, split and stacked under shelter with sides
open so the wind can dry it. Wood needs to have no more than 20% moisture. Stack indoors 1 day prior to
burning. Do not shut primary air supply or it will smolder fire and create creosote.
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