61. In the case of a steam boiler, with the exception of electric boilers, the capacity in kilowatts is established by multiplying by 20 the boiler capacity in HP established in relation to 1.022 m2 (11 ft2) of heating surface. However, if there is doubt or conflict concerning this method, the board of examiners establishes the capacity according to section 15.
R.R.Q., 1981, c. M-6, r. 1, s. 61.