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Installing a Combi Boiler without using the heating part for a while
New to this board so I hope I dont commit any violations. We just moved into an older house. The existing water heater is leaking badly and probably going to fail more catastrophically sooner than later. To replace it I bought a Navien NCB-180e which is a combi boiler. It is my intention to install this asap to replace the failing hot water heater but for the time being I only intend to use the DHW side of the boiler. I bought the combi boiler so I could plumb the heating side to radiator and baseboard heaters later this year but for now other priorities prevail.
Will there be any problem with running this combi boiler but only using the DHW side for now? I am thinking this should be OK as the situation will be similar to a summer shutdown of the heating side while continuing to use the DHW side but I worry about protecting the heating side heat exchanger which is primary in this unit.
Are there any special precautions I should take to ensure that the heating side wont overheat when I am only using DHW? Should I hookup a temporary primary loop or something similar?