[supafamous]

Originally Posted by unit

hot water on demand systems generally have shitty warranties... we have one at the shop that just died after about 4 years. we might be able to replace the switch inside, gonna try that first.

hot water tanks on the other hand are good for 6 years even for the cheapest models, with the good models being 10 years and up.

never actually tried using those warranties though... the few hwt that i've ever replaced have always gone beyond their warranty life.

The heater core for our Navien died after 3 years so we were able to get a warranty replacement but the Pioneer Plumbing guy made a bit of a mess of replacing it (and a bit of bad luck) and we ended up being out of hot water and heat for over a week as Navien had to send another heater core to us.

We had a small running list of issues with our previous Navien as well in our duplex - the guy who installed it did a pretty terrible job from what we could tell. Seems like having an installer who actually knows what they're doing makes a big difference in the performance of the system (shocked pikachu of course)