Formel nr. 1                   Formel nr. 2                Formel nr. 3                  Formel nr. 4                Fysik/kemi

Hedefladebelastning.      Energiberegning             Oliedyse-                       Olieberegning                Atomer
                                                                         dimentionering
Fyrrumsbelastning.        Omsætningstabeller                                              Brændværdi                  Molekyler
                                                                         Dysevalg
Virkningsgrad.                                                                                          Brændværdi-                Bindinger
                                                                         Dyseydelse                     omregning
Brutto og -                                                                                                                                   Kemiske-
nettovirkningsgrad.                                             Viskositet olie                   Olieopvarmning             forbindelser
                                                                         
Fordampningstal.                                                Normal kubikmeter           Udvikles ved-                 Regning : 
                                                                                                               forbrænding                  Interpolering
Tid for fordampning af -                                       Rumfang
vand i kedel.                                                                                             Kulanalyse
                                                                         Temperatur omregning
Luftoverskudskoefficient.
                                                                         Luftarters udvidelse
Co₂ Max. beregnet.
                                                                         Skorstenstræk
Røgtab.
                                                                         Røggashastighed
Varmefylde.

Massefylde.

Brændselsforbrug.

Varmetab.