What are the 4--W's (WHO__WHAT__WHEN__WHERE? or name brand--model #-- serial #'s oil fire---or gas fire--- up flow---downflow ----age of unit--- piot light or hot surface igniter ect. ect...
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What are the 4--W's (WHO__WHAT__WHEN__WHERE? or name brand--model #-- serial #'s oil fire---or gas fire--- up flow---downflow ----age of unit--- piot light or hot surface igniter ect. ect...