Takagi T-T2-IN-NG Indoor Commercial Condensing Tankless
Model T-T2-IN-NG
from Check current price
Price via Amazon
Check Price on Amazon
Free shipping with Amazon Prime · 30-day returns
Btu
199000
Cascade
Up to 6 units
Venting
PVC Direct Vent
Fuel Type
Natural Gas
Tank Type
Tankless
Capacity Gpm
10
Takagi T-T2-IN-NG Indoor Commercial Condensing Tankless Review
The Takagi T-T2-IN-NG is an indoor commercial condensing tankless water heater. "T-T2" identifies the commercial platform; "IN-NG" means indoor natural gas configuration.
Specs: 199,000 BTU natural gas input, UEF 0.95 condensing, 11.0 GPM at a 35°F rise, dual stainless heat exchanger with commercial-grade reinforcement. PVC condensing venting. 12-year warranty on heat exchanger.
The T-T2 commercial line is positioned for higher cycle counts than residential. Same fundamental engineering as the T-D2 residential platform with reinforced commercial components.
About $2,800 unit, $4,500 installed. Right buyer: light commercial application (small restaurant, salon/spa) or very-large residential where commercial-grade durability matters.
Pros
- On-demand operation at 10 GPM — no standby heat loss; unlimited hot water if demand is within flow-rate capacity
- Strong UEF 0.94 efficiency — approximately 20% lower annual operating cost vs 0.62 standard
- 10-year warranty — solid above-average coverage for this class
- High 10 GPM output — serves 3+ simultaneous hot-water fixtures in most US climates
Cons
- Requires dedicated 199K BTU gas supply line — undersized gas piping is the leading cause of flow-rate shortfalls
Full Specifications
Brand
Takagi
Model Number
T-T2-IN-NG
Btu
199000
Cascade
Up to 6 units
Venting
PVC Direct Vent
Fuel Type
Natural Gas
Tank Type
Tankless
Capacity Gpm
10
Energy Factor
0.94
Warranty Years
10
Similar Water Heaters
Rinnai
Rinnai RU199iN Sensei Tankless Water Heater
199000
Natural Gas
Tankless
Check current price
Rheem
Rheem Marathon Lifetime 50-Gallon Electric Water Heater
4500
Electric
Tank
Check current price
Triangle Tube
Triangle Tube Smart 80 Indirect Water Heater 80-Gallon
Indirect
Indirect
0.88
Check current price