Ohmically heated divertor discharges with gas fuelling and pellet fuelling without any gas puffing are compared. Central radiation prevents improvement of the density limit with this pellet injection mode. Strongly peaked density profiles are obtained, while the temperature profiles are only weakly broadened, compared with gas puffing. Transport analyses show that the deep penetration enhances convective energy transport, which is offset by reduced electron thermal conduction loss. The particle and energy transport can be described by the same .models for both fuelling modes. But only the electron thermal diffusivity, χe, averaged over one pellet cycle, agrees with the scaling derived from steady state gas fuelled discharges, whereas a description in agreement with the 'temperature profile consistency' also depicts the time resolved χe profiles.