Furnace

Exhaust:
34.92°F
Av:38.00°

Exhaust:
63.84°F
Av:68.13°

Intake:
64.74°F
Av:68.63°

Intake:
35.26°F
Av:35.18°

Flame raw:
Run: 1023
Min: 918
Max: 996

Pressure:
Run: 0
Min: 84
Max: 98

Primary Heat:
63.72°F
Max:149.34

Gas Ignition Profile

    

OUTSIDE

Gas OFF

Blower
  OFF

Return Air

Pressure Error List:
No errors this season

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The Furnace system uses one Pro Mini to monitor the furnace temperatures, control the inducer motor, vary the blower motor speed, monitor a pressure transducer, Monitor flame quality and display status and statistics readings on a 4x20 LCD. A second Pro Mini is used with an ESP-1 to request data and send to this web page for display. Data rates are changed based on furnace activity. The following is the current data rate: 70 seconds. When the furnace is running, updates are available every 5s. After one hour of inactivity the rate slows to every 70s. After 12 hours of inactivity data rate slows to 140s.

The gas ignition profile in the upper right corner is recorded for each heating cycle. You can hover over each bar to see its actual value. There should be a dip in the middle area of the chart as the flame is very yellow when igniting. A lower number represents a poorer flame quality. If the flame values stay low, this indicates a poor flame quality and excess carbon monoxide production.

The inducer pressure readings are raw counts. The readings are taken across the primary and secondary heat exchanges. A value between 80 and 102 indicate acceptable air flow for combustion.

There is a custom third heat recovery unit between the furnace and outside wall. This heat exchanger condenses additional combustion moister (latent heat) and also provides some sensible heat recovery. Seasonaly I recovered an additional 500,000 - 1,000,000btus of heat. .