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WHEN KINDLING A FIRE OR RELOADING THE STOVE. It should be “damped down” or partially closed as
soon as the fire has been kindled or, if the stove is being reloaded, as soon as the fire has been re-established.
N
EVER BUILD A ROARING FIRE IN A COLD STOVE! It takes approximately
30-45 minutes to heat the soapstone mass of the Keystone or Palladian stove
thoroughly. Any attempt to hurry this process and generate extremely high heat
quickly could result in damage to the cast-iron or to the soapstone. Your patience will
be rewarded with hours of “stored” warmth.
The Surface and Probe Thermometers
We recommend placing the surface thermometer 8”-10”above the flue collar on
single wall stove pipe if the stove is vented out the top. If you are reading the single
wall stove pipe temperature, the interior flue exhaust temperature is about twice as
hot. Since the 22 gauge sheet metal pipe is more reactive (faster heat transfer) than the
stove top, it gives a better idea of exhaust temperatures. We recommend engaging the
catalytic combustor once the pipe thermometer reaches 250°-300° F. Once the
combustor is engaged, you should see the stove surface temperature rise and the pipe
temperature drop, indicating catalytic combustor activity. From a cold start it may
take 30-45 minutes to get the stove up to temperature. If you are reloading a hot
stove, wait approximately 10-15 minutes before engaging the combustor.
The surface thermometer is not a precise instrument – it will not tell you the exact temperature inside the firebox or
in the flue. If reading the surface temperature, the thermometer will not register changes in temperature quickly due to
the thickness and heat retention of soapstone. We supply the thermometer to give you some idea of what is going on
inside the stove, and to provide a guide for operation.
STOVE TOP READING OPERATION
over 250º. . . . . . . . . . . . . . . . . . . . . OK to engage the combustor
400-600º. . . . . . . . . . . . . . . . . . . . . . Normal operating temperature
600-700º. . . . . . . . . . . . . . . . . . . . . . High burn range
over 700º. . . . . . . . . . . . . . . . . . . . . DO NOT burn in this range
The probe thermometer can be inserted into the port beside the flue collar in the rear of the stove. The probe
thermometer will measure the temperature immediately downstream of the catalytic combustor. The sensing end of
the probe extends to within 1 inch of the face of the catalyst. The probe is calibrated from room temperature to 1700
degrees F. The catalyst can be engaged as soon as the temperature on this probe exceeds 500 degrees F, or as soon as
the temperature on the pipe thermometer exceeds 250 degrees (see above). The best operating range for the catalyst is
from 500 - 1400 degrees F. When the temperature on the probe thermometer exceeds 1400
o
F, we recommend closing
the damper to prevent excessive heat from occuring
Overfiring
The cast iron parts in your Woodstock Soapstone Stove are of the finest quality. Our cast
iron parts have been made in the same foundry since the mid 1980’s, and the foundry
itself has been in business for over one hundred years. Each cast iron part is inspected by
our stove builders before it becomes part of a stove. However, cast iron is not
indestructible. Experts have shown that cast iron begins to oxidize (reddish or whitish
discoloration) at 1400º F. Burning a stove frequently at excessive temperatures is known
as overfiring. When the surface temperature is consistently near or over 700º F, the stove
has reached 1400º F inside. Operation with temperatures in this range can lead to cast
iron warping, becoming brittle, and eventually deteriorating completely. Overfiring can
also shorten the useful life of the catalytic combustor.
Avoid overfiring by letting the combustor do most of the work in the stove. Your stove is operating at peak efficiency
when the combustor is “engaged”, with the damper lever set to a low to moderate setting, and the logs are glowing
with some low flames, or lazy floating flames. You will get the greatest amount of heat per pound of wood when the
stove is operated in this manner.
Daily Use
Your Keystone or Palladian is well-suited for continuous firing on a 24 hour-a-day basis. It will burn for hours on one load
DO NOT OVERFIRE!
ATTEMPTS TO ACHIEVE
HEAT OUTPUT RATES
THAT EXCEED STOVE
DESIGN SPECIFICATIONS
CAN RESULT IN PERMA-
NENT DAMAGE TO THE
STOVE AND TO THE
CATALYTIC COMBUSTOR.
15
Place the stove top thermometer on the soap-
stone, in the center of the top of the stove, over
the the catalyst, or on the first 8-10” of single
wall stove pipe.
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