OPERATION : STARTING A FIRE
• Use one-year dry cordwood (18 to 28% moisture content), 16” to 32” long and 3” to 7” in diameter. Wood 8”to 12” in diameter should be split once, larger than 12” split twice. • Load the wood centered in the combustion chamber front to back, max length of 24” for the WHS 1000 model, and 32 ” for all other models. Do NOT EXCEED 24” or 32” as this allows a 4” to 6” minimum clearance to the front and back of the combustion chamber for proper combustion. The chamber can be packed full vertically, leaving about 8 ” clearance at the top . • If using softwood, the total weight of wood will be less due to the lower density of the softwood. Reloading after 1.5 hours may be required. • Load all wood carefully or damage to the reaction chamber may occur.
4) LIGHT FIRE AND START BLOWER
• Light the paper with a match and watch for a few seconds to confirm that the paper has ignited. • P ush and hold the “Start” button for 5 seconds , then close the door. This activates and locks the combustion blower on for 10 minutes. This time lock is a preset factory setting. • If a combustion air damper is installed , push and hold the “Start” button for 5 seconds, then close the door after about 20 seconds. The combustion blower will activate only after the damper end switch “proves open.” This procedure results in a delay of 30 to 40 seconds before the motor starts. • The Controller will turn the draft inducer off once the wood has been fully consumed.
5) MONITOR COMBUSTION AND RELOAD
• Open the door to adjust the fuel pile for complete combustion ….OR • Open the door to reload if the storage temperature has not reached 185°F. A full load of dry cordwood burns completely in about 3 hours. You can load additional fuel before the fire is out and continue to burn. Watch the tank temperature, being careful not to continue adding wood if the temperature approaches 185°F. Never exceed 200°F or boiling (which is altitude dependent). • The above procedure should take about 5 minutes. The GARN® WHS equipment is NOT to be used with any automatic fuel-loading device or blower modulation control. Managing your firing temperature to match your required heating load and outdoor temperature will significantly improve your wood consumption. With experience you will determine the lowest water temperature required to satisfy your needs during cold weather and establish that as your target “high” temperature. During the much longer shoulder season you will be able to lower your target high temperature resulting in fuel savings.
THE EXTERIOR DOOR AND AIR COLLAR SURFACES MAY BECOME HOT ENOUGH TO CAUSE BURNS. The hot surfaces inside of the door and combustion chamber WILL cause
burns.
GARN WHS 1000 and WHS 2000 Manual © HY-C Company LLC - September 2024
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