Noritz EZTR50 Indoor Condensing Tankless Water Heater with Recirculation
Noritz EZTR50 Indoor Condensing Tankless Water Heater with Recirculation Review
The Noritz EZTR50 is the smallest variant in Noritz's recirculation-equipped tankless line. "EZTR50" reflects ~105K BTU output with integrated recirculation. Smaller sibling of the EZTR75 and EZTR111.
Specs: 105,000 BTU natural gas input, UEF 0.94 condensing, 5.0 GPM at a 35°F rise, stainless steel heat exchanger, built-in recirculation pump with smart-pattern learning. PVC condensing venting. 12-year warranty on heat exchanger.
The 105K BTU class serves 1-bath warm-climate homes where the cold-water sandwich elimination matters but full 199K BTU capacity isn't needed. Smaller gas line requirements (often 1/2" line works at moderate distances).
About $1,800 unit, $3,400 installed. Right buyer: 1-bath warm-climate home wanting tankless + built-in recirculation in markets with established Noritz dealer presence.
- On-demand operation at 5 GPM — no standby heat loss; unlimited hot water if demand is within flow-rate capacity
- Strong UEF 0.93 efficiency — approximately 20% lower annual operating cost vs 0.62 standard
- 12-year warranty — above-average protection; most competitors offer 6
- Requires dedicated 150K BTU gas supply line — undersized gas piping is the leading cause of flow-rate shortfalls