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Residential Products
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HomeProductsHomeownersWater HeatersTankless Water HeatersRheem® ThermaForce® Super High Efficiency Condensing Tankless Gas Water Heaters

Rheem® ThermaForce® Super High Efficiency Condensing Tankless Gas Water Heaters

MODEL CRTGH-L199i

Residential

15-Year Heat Exchanger
5-Year Parts
1-Year Labor

Commercial

5-Year Heat Exchanger
5-Year Parts
  • Up to .90 UEF
  • Save up to 32% annually in energy costs 
  • Only 4 moving parts - Damper, Fan, Gas Valve, Mixing Valve
  • Built-in Illuminated Touchscreen Control Panel

SKU CRTGH-L199i
Warranty Years 15
Model Rheem® ThermaForce® Super High Efficiency Condensing Tankless Gas Water Heaters
GPM 10.1
Fuel Natural Gas,Propane Gas
Depth 10"
Height 29"
Width 17"
UEF
0.9
High Efficiency Yes
Energy Star Rated Yes

Flexible Installation 

  • Moveable combustion air intake (left/ right) and ability to flex vent in existing B-vent 
  • Extra long pipe fittings with notched sides for easy gripping with wrench 
  • Only 4 moving parts – Fan, Mixing Valve, Gas Valve, and Damper 
  • Universal shared platform parts – Easily diagnose and service with common parts for all ThermaForce units

Key Features 

  • Innovative single pass Labyrinth Heat Exchanger with Integrated copper waterway ensures maximum heat transfer with minimal heat loss 
  • Wireless cascading using RF balances workload of each unit for longer life - No Wi-Fi required
  • Built-in Illuminated Touchscreen Control Panel 
  • Stands up to extreme hard water applications

Residential

15-Year Heat Exchanger
5-Year Parts
1-Year Labor

Commercial

5-Year Heat Exchanger
5-Year Parts

CSA Low Lead CompliantCSA_C_USAHRI B&W

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Find additional documentation by viewing these related products.

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CRTGH Series Super High Efficiency Condensing Tankless Gas Water Heater with Built-In Wi-Fi
6.6-9.5 GPM
  • .93 UEF Rated
  • Built-in EcoNet® Wi-Fi Technology
  • LeakGuard® Leak Detection and Prevention System
  • Indoor Model Only
Natural Gas
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Rheem IKONIC® (SR Series) Super High Efficiency Condensing Tankless Gas Water Heater with Built-in Recirculation Pump & Wi-Fi
8.4-11.2 GPM
  • .96 UEF
  • ENERGY STAR® certified
  • Built-in recirculation pump
  • Built-in EcoNet® wi-fi
  • Save up to 36% in energy costs per year
  • Rheem Exclusive! Hot Start Programming eliminates cold water bursts for continuous hot water
  • Rheem Exclusive! Overheat Film Wrap shuts down the system if overheating occurs
  • Industry Best! 1/2" side to side clearance
  • Industry-leading warranty with full unit replacement coverage*
Natural Gas
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Rheem IKONIC® (S Series) Super High Efficiency Condensing Tankless Gas Water Heater
8.4-11.2 GPM
  • .96 UEF
  • ENERGY STAR® certified
  • Save up to 36% in energy costs per year
  • Rheem Exclusive! Hot Start Programming eliminates cold water bursts for continuous hot water
  • Rheem Exclusive! Overheat Film Wrap shuts down the system if overheating occurs
  • Industry Best! 1/2" side to side clearance
  • Wi-Fi capable
  • Industry-leading warranty with full unit replacement coverage*
Natural Gas
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Professional Prestige Series: 9.5 GPM Indoor Tankless
9.5-9.5 GPM

  • High Efficiency Tankless with EcoNet® Smart Home Technology
  • Up to .93 UEF - US
  • Up to .96 EF - Canada
  • Built-in Condensate Neutralizer