The provisions of this chapter shall apply to volunteer or call members of a paid fire department, but the amount of pension to be paid to such members shall be determined by the board of trustees. [S13, §932-e; C24, 27, 31, 35, 39, § 6320; C46, 50, 54, 58, 62, 66, 71, 73, 75, 77, 79, 81, §410.12 ]