Balmer decrements for ESO-Hα 574, regions A1 (top) and A (bottom), fitted with Case B recombination (black and red lines) and LTE optically thin models (blue line). For the Case B scenario, the best fit is offered by n_e = 10⁴ cm^-3, T_e = 10 000 K. The LTE optically thin case with T_e = 20 000 K provides an equally good fit. The results agree with the fact that for region A1, emission from the accretion zone is dominated by the outflow emission.