No, we no longer manufacture the Dorchester DR35L water heater. The closest fit replacement would be the Dorchester DR-LA 30/40 (auto) or Dorchester DR-LP 30/40 (permanent pilot) water heaters.
By opting for the horizontal draught diverter arrangement, it would be easier to integrate with the existing flue system.
For more details on comparing the data and dimensions of your existing water heater with the potential replacements, please contact our technical department on 01202 662500. Read more about the Dorchester DR-LA/LP.