Recovered heat from ice rink refrigeration condenser can be used in a variety of applications: space heating, domestic water heating, floor heating, ice melting, ventilation....
Is there by any chance possibility to assume what would be a minimum of recovered energy in every moment, in order to minimize a district heating connection design capacity?(e.g. lets say thath in total I need 400kw, and that I could say that from refregaration plant I'll get 150kW. in that cases I would need 250 kW more taken from district heating)?.

Best regards,

Drmile