So I visited the customer support area on the Takagi website and low and behold: lot's of installers and wholesalers, but THERE IS NOT A SINGLE AUTHORIZED SERVICE TECHNICIAN IN THE STATE OF TENNESSEE. If it breaks, what is Joe Homeowner supposed to do? Fly in a technician from the one outfit in Austin that'll work on the thing? So I headed over to the Bosch website. There is only one installer/service technician in the whole state to service their tankless products! Lastly I visited the Rinnai website. There is an authorized dealer and service provider listed for Knoxville. One. Again, lots of installers, but only one outfit that is also authorized to service the product. I might add that there is no place listed for Joe Homeowner to legitimately purchase a Rinnai tankless.
So love 'em or hate 'em, I would suggest that the availability of parts, service, and the valdity of a DIY installation (if that's the way you want to go) be added that to the list of things for homeowners to check on before their purchase. I wonder what the present worth calculations would look like?