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The BTU rating of the temperature and pressure relief valve must always equal or exceed the BTU input rating of the heater itself to ensure the valve can safely vent the full output of the tank in an emergency
A digital manometer is recommended for final verification
replacing the old
Using non-OEM paper can lead to calibration offsets or mechanical feed issues
White-Rodgers FR2000U-108 Filter 30067439-890 The BTU rating of theAs a seasoned technician, you know that maintaining system static pressure starts with selecting the right media. The White Rodgers FR2000U 108 is a professional grade 20x25x5 air filter designed to provide a MERV 8 rating according to ASHRAE 52. 2 standards. This 3 pack of pleated media filters is engineered for high velocity systems, supporting up to 2000 CFM airflow without the significant pressure drop seen in restrictive higher MERV alternatives.
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