Back in 2008 we upgraded our furnace and water heater.
We had a Navien T-Creator Condensing 98% unit installed.
Initial reaction was it was good all in all.
Had an active teenager then that loved his showers and we do too, never ever ever ran out of hot water once flowing.
It did/does take longer to reach the faucets and shower heads than the 55 gallons of pre/reheated system did and we decided to live with it and not put in re-circulation.
It has had some issues and been serviced a few times over the years, last time I did it replacing at least a dozen o-rings that don't age well.
8 years ago the Factory actually sent out a team to do a rework on the main board and replaced at least one of the myriad of tubes pipes and such- all under warranty.
Last night my wife took a shower and afterward said hey! there's no water running from the taps at all.
I went out to the unit and there was a small river of water that had just began emanating from down under.
The panel had a code blinking, I cleared it and discovered the drain PCV outside
had frozen solid in the 8 degree at night temps.
I pulled a flexible tube out of the PVC inside and drained it into a bucket.
The heater started working fine again but there was also some water dripping from the case- Rutro.
Pulled the cover and there is a slow drip from the primary heat exchanger. And some corrosion I don't like the looks of.
The leak come from the side of the case just to the left of the black elbow going into the condenser
Debating replacing a big chunk of it vs replacing the 14 year old unit...
Any suggestions for a good replacement unit for a middle size household??
14 years ago it was $3100 installed... ah the good old days.