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The domestic water loop does not require annual maintenance.
Calcium build-up over time will act as an insulator. The exchanger unit can be
back-ushed with a lime removal cleanser.
The fan unit does not require annual maintenance.
The Timberline system is equipped with the ecient Autoterm Binar Compact
Diesel or Gasoline burner. This burner is designed for optimal use in all climates
including high altitude up to 10000 feet. There is limited required maintenance for
the Autoterm burner.
It is recommended to exercise the burner every month letting the burner run for
15-20 minutes. If the burner is utilized monthly there is no annual or hour based
maintenance required.
The exhaust system should be inspected annually for damage.
The system coolant does not require winterization.
The system coolant can be tested for its freeze protection value.
The domestic water circuit needs to be drained or protected using RV winterizing
uid. Propylene-glycol can be pumped through the system using the domestic
water pump and opening both hot and cold valves at a plumbing xture. Using this
procedure does not require draining the Demand Hot Water exchanger.
Refer to the Draining the Fresh Water System and Winterizing the plumbing sys-
tem sections.