|Fuel Type||Liquid Propane|
|Vent Type||Direct Vent|
|Maximum Input Capacity (BTU)||150,000|
|Minimum Input Capacity (BTU)||17,000|
|Input Capacity Range|
|Minimum Flow Rate (GPM)||0.5|
|Primary Vent Pipe Diameter (Inches)||3|
|Gas Connection Size (Inches)||3/4|
|Cold Water Inlet (Inches)||3/4|
|Hot Water Outlet (Inches)||3/4|
|Product Height (Inches)||28|
|Product Width (Inches)||17|
|Product Depth (Inches)||12|
|Product Weight (Pounds)||74|
|Parts Warranty (Years)||5|
|Heat Exchanger Warranty (Years)||10|
Navien's condensing efficiency boasts the industries highest rating of 91%. Customers can take advantage of the low annual operating costs and receive the best value and payback, compared with conventional tankless or tank-type water heaters. Navien CH-18 Combi Condensing Water Heater offers the highest gallons-per-minute (GPM) when comparing input BTUs.
Navien utilizes dual stainless steel heat exchangers, providing 3.8 to 4.5 times longer life-expectancy and erosion resistance over the copper heat exchangers used in other brands. Naviens stainless steel heat exchangers operate with relatively low water temperature, minimizing damage from hard water conditions and maintains efficiency levels.
Navien Condensing tankless heaters offer safety and an unlimited amount of hot water supply. Consumers love the endless supply of hot, soothing water!
The high efficiency of Naviens Condensing Tankless results in lower exhaust temperatures, allowing for the use of 3 Inch PVC. PVC venting offers significant savings in cost and makes installation a breeze. Three-inch PVC venting up to 100ft with a maximum of 6 elbows, where each elbow deduct 5' off of venting length
This unit is non-convertible for Natural Gas use. For Navien CH-180-NG Gas Fired Heater click here.
Amtrol - FT-109-100 - 2 Gallon - Expansion Tank & Fill Valve Combination Kit - With 1" Purger & Vent - 1/2" NPT Connection - 1 Gallons Max Acceptance
Navien - NARC1GSNR037 - Remote Controller NR-10P - For CH Series Combi Boilers
Navien - BCRA1129 - Ready-Link Communication Cable - For NR, NCB and NPE Series Tankless Water Heaters and CH Series Combi Boilers
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