Knowing the temperature of the air going up the smoke stack is a first test in determining if you stove is running at peak efficiency.
For testing stack temperatures or the internal temperatures of your burner it is handy to have a digital thermometer. There are really two types of thermometers, the probe type, where you will have to drill a hole into the furnace pipe and insert the probe, and the infrared type, where you can take readings at a distance. Both are very accurate, just a matter of what you are trying to read.
The infrared type is of much more use than just for stack testing, as is the probe version. An example of typical use comes from the user Cobinator who writes:
"I can see what temps my heat exchanger are at and the fire pot temp (through the glass) and I also check my duct temps to see where I loose heat (I circulate heat with furnace fan) its been very helpful in tuning in my stove."
Just by pointing the infrared model at these different objects, you are able to get temperature readings. Some users have even gone as far as to map out different heat regions inside their furnaces to use this data and adjust their turbulators.
Another option is a permanent, or semi-permanent thermometer which is attached to your stove. The thermometer can be either stuck to the door in the case of a furnace or boiler to determine firebox temperature, or attached to a flue pipe to record stack temperature.
These magnetic thermometers can be purchased from [Ace Hardware] or most any other big box hardware/lumberyard.
TheChimGard Energy Meter - This stovepipe thermometer is a must for your wood, pellet or corn burning stove. The ChimGard energy meter attaches to your stovepipe magnetically so you can begin using right away. Its rugged welded construction and stay-cool fold-up handle makes the ChimGard long lasting and convenient. This ChimGard energy meter stovepipe thermometer will help in many ways. First it will make fires last longer which saves on reloading. Also it will cut down on chimney cleaning by burning wood completely in the best operation range. Help avoid chimney fires by keeping from overheating. Last it will extend the life of catalytic combustors by letting you know when you are overheating the fireplace. The CimGard energy meter sets the standard for the industry. It combines durable genuine porcelain enamel with yellow & orange zones clearly indicated on it's brown case - shows safe flue temperatures at a glance. Temperatures up to 900 degrees Fahrenheit (500 degrees Centigrade). ChimGard's rugged steel case ensures long life.
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