TANKLESS PRODUCT GUIDE
SAVE ENERGY. Energy-efficient, plentiful, and endless supply of hot water. SAVE SPACE. Compact size and wall-mounted to free up valuable floor space. SAVE MONEY. The smart choice that will save you a substantial amount of energy. 1 Takagi has delivered innovative hot water solutions for more than 70 years, and is sold exclusively by plumbing wholesalers and contractors. Takagi’s selection of residential and commercial tankless water heaters are unmatched for quality and diversity.
TANKLESS ADVANTAGE HOW IT WORKS – THE PROCESS: • A hot water tap is opened. • The opened tap allows water to flow through the water heater. An internal water flow sensor detects this flow. • Upon flow detection, the flow sensor sends the activation signal to the computer board. • The computer automatically ignites the burner. • As water flows through the heat exchanger, it absorbs heat from the burner. • By the time the water exits the heater, it has reached the designated set temperature.
SAFETY At Takagi, we place the safety and reliability of our products above all else. By incorporating technologically advanced safety features into every model, we provide the assurance and peace of mind that can only come from an Takagi quality product. Air-Fuel Ratio (AFR) Sensor Takagi’s unique AFR sensor monitors and maintains proper combustion at all times.
DURABILITY HEAT EXCHANGER WITH COMMERCIAL-GRADE COPPER Only Takagi incorporates true commercial-grade heat exchangers in our tankless heaters (D2, 510U/C, or 510U, 510C, H3, 540P, CT-199 and M50 non-ASME models). All aspects of the heat exchanger are designed to add the durability and reliability that is vital to any successful commercial organization or business.
WATER VALVES Making true commercial-grade water heaters involves more than just redesigning our heat exchangers—every internal component has to measure up to Takagi’s commercial standards. Just like our advanced heat exchangers, the longevity and functionality of components such as our water valves and flow sensors are also of great importance.
SECONDARY HEAT EXCHANGER 316L STAINLESS STEEL (CONDENSING MODELS ONLY) The secondary condensing heat exchanger is made of high-quality 316L stainless steel. This is where the rest of the heat transfer occurs. Due to the lower temperature acidic condensation occurs, and stainless steel is required in order to avoid corrosion.
WATER FLOW Condensation can build up over time in any heat exchanger, causing damage and premature leaks. Takagi’s commercial models (M50 series) include condensation reduction features that safeguard against these types of damaging effects. Better Water Pathway Design By redesigning and redirecting the flow of water, the temperature of the heat exchanger drum and finned coils stay elevated above dew point, making it much more difficult for condensation to build.
BASIC SIZING GUIDELINES The flow rate capacity of tankless water heaters depends on the temperature difference between the desired output and incoming water temperature. The flow rate comparison chart and table shown here summarize the flow rate charts found in the specifications of each model. Takagi water heaters are sized according to the peak flow rate requirements, worst-case temperature-rise scenarios, and types of applications.
FLOW RATE GUIDE Temperature Rise vs. Gallons per Minute Temp Rise KJr2/ 110U/ 110C K4/ 310U/ 310C D2/ 510U/ 510C H3M H3J H3S H3/540P CT-199 M50 30° 6.6 8.0 10.0 6.6 6.6 8.0 10.0 10.0 14.5 35° 6.6 8.0 9.3 6.4 6.6 8.0 10.0 10.0 14.5 40° 5.7 7.8 8.1 5.6 6.6 8.0 9.5 9.5 14.5 45° 5.1 6.9 7.2 5.0 6.6 7.6 8.4 8.4 13.5 50° 4.6 6.2 6.5 4.5 6.1 6.8 7.6 7.6 12.2 55° 4.2 5.7 5.9 4.1 5.5 6.2 6.9 6.9 11.1 60° 3.8 5.2 5.4 3.7 5.1 5.7 6.3 6.
SIMPLE TANKLESS SIZING TANKLESS MODELS GROUND WATER TEMPERATURE FACTOR The temperature of incoming ground water (cold water inlet temperature) varies greatly throughout the U.S. and also fluctuates with the changing of the seasons. The temperature of water as it enters the water heater will determine the amount of “temperature rise” required to achieve the desired hot water outlet temperature (120°F is recommended).
KJR2 SERIES NON-CONDENSING The KJr2 Series is great for apartments, one bath homes in cold climates, condos and summer cabins. A remote control is included as a standard feature. 11 T-KJR2-IN Specifications Gas Consumption Input Model Number* T-KJr2-IN-N Model Number* T-KJr2-IN-N Inlet Gas Pressure** Type Minimum (BTU/H) Maximum (BTU/H) Minimum (in. W.C.) Maximum (in. W.C.) UEF Natural 19,500 140,000 4.0 10.5 0.79 Maximum GPM 6.
Specifications Indoor installation only Water Pressure: 15-150 psi Power Vent or Power Direct Vent Design • Pressure Only Relief Valve Requires (Min 140,000 btu/h, 150 psi). • 40 psi or above recommended for max. flow Low NOx Emissions Warranty 4” Category III Vent • 15-year limited warranty on heat exchanger in residential applications. Flow Rate up to 6.6 GPM • Values based on factory testing. 0.
K4 SERIES NON-CONDENSING The K4 features a max flow rate of 8.0 gpm, providing enough hot water for a home with up to three showers at the same time. A remote control is included as a standard feature. 13 T-K4-IN T-K4-OS Specifications Gas Consumption Input Model Number* Type Minimum (BTU/H) Inlet Gas Pressure** Maximum (BTU/H) Minimum (in. W.C.) Maximum (in. W.C.) UEF T-K4-IN-N Natural 11,000 190,000 4.0 10.5 0.80 T-K4-OS-N Natural 11,000 190,000 4.0 10.5 0.80 Clearances (in.
Specifications Indoor and Outdoor Installation Options Warranty Power Vent or Power Direct Vent Design • 15-year limited warranty on heat exchanger in residential applications. Low NOx Emissions • 5-year limited warranty on heat exchanger in commercial applications. 4” Category III Vent Flow Rate up to 8.0 GPM • 5-year warranty on all parts. • Values based on factory testing. 0.4 GPM required for continuous fire after initial ignition • Refer to takagi.
D2 SERIES NON-CONDENSING The D2 series is well suited for residential/commercial applications such as small restaurants and beauty salons. Utilizing commercial grade copper alloy for the heat exchanger tubing, the D2 series is also suitable for heavier residential usages such as combination space heating and domestic recirculation systems. A remote control is included as a standard feature.
Specifications Indoor and Outdoor Installation Options Easy-Link up to 4 heaters Power Vent or Power Direct Vent Design Warranty Low NOx Emissions • 15-year limited warranty on heat exchanger in residential applications. 4” Category III Vent • 5-year limited warranty on heat exchanger in commercial applications. Flow Rate up to 10.0 GPM • Values based on factory testing. 0.4 GPM required for continuous fire after initial ignition • 5-year warranty on all parts. • Refer to takagi.
110C SERIES NON-CONDENSING The 110C Simplicity Series is fuel convertible out of the box and easily installs using contractor preferred concentric venting. Great for apartments, one bath homes in cold climates, condos and summer cabins. 17 TK-110C-NI Specifications Gas Consumption Input Model Number* TK-110C-NI Model Number* TK-110C-NI Inlet Gas Pressure** Type Minimum (BTU/H) Maximum (BTU/H) Natural 15,000 140,000 Maximum GPM Hot/Cold Connections Gas Connection 6.
Specifications Installations are simple and flexible with contractor-preferred concentric venting Water Pressure: 15-150 psi • Pressure Only Relief Valve Requires (Min 140,000 btu/h, 150 psi) Long venting runs up to 43 feet and operates in altitudes up to 10,100 feet • 40 psi or above recommended for max. flow Warranty Gas convertible from natural gas to propane using the included conversion kit • 15-year limited warranty on heat exchanger in residential applications. Flow Rate up to 6.
310C SERIES NON-CONDENSING The 310C Simplicity Series is fuel convertible out of the box and easily installs using contractor preferred concentric venting. It generates a max flow rate of 8.0 gpm, providing enough hot water to run three showers at the same time. 19 TK-310C-NI Specifications Model Number* TK-310C-NI Model Number* TK-310C-NI Gas Consumption Input Inlet Gas Pressure** Type Minimum (BTU/H) Maximum (BTU/H) Minimum (in. W.C.) Maximum (in. W.C.) UEF Natural 15,000 190,000 4.
Specifications Installations are simple and flexible with contractor-preferred concentric venting Water Pressure: 15-150 psi • Pressure Only Relief Valve Requires (Min 190,000 btu/h, 150 psi) Long venting runs up to 43 feet and operates in altitudes up to 10,100 feet • 40 psi or above recommended for max. flow Warranty Gas convertible from natural gas to propane using the included conversion kit • 15-year limited warranty on heat exchanger in residential applications. Flow Rate up to 8.
510C SERIES NON-CONDENSING The 510C Simplicity Series is fuel convertible out of the box and easily installs using contractor preferred concentric venting. It is well suited for residential/commercial applications such as small restaurants and beauty salons. Utilizing commercial grade copper alloy for the heat exchanger tubing, the 510C series is also suitable for heavier residential usages such as combination space heating and domestic recirculation systems.
Specifications Installations are simple and flexible with contractor-preferred concentric venting Water Pressure: 15-150 psi • Pressure Only Relief Valve Requires (Min 199,000 btu/h, 150 psi) Long venting runs up to 43 feet and operates in altitudes up to 10,100 feet • 40 psi or above recommended for max. flow Easy-Link up to 4 heaters or connect up to 20 heaters with a Multi-Unit Controller Flow Rate up to 10 GPM Warranty • Values based on factory testing. 0.
110U SERIES NON-CONDENSING The 110U Series is great for apartments, one bath homes in cold climates, condos and summer cabins. Indoor models include an integrated temperature controller. A remote control is included as a standard for outdoor models. Complies with SCAQMD Rule 1146.2 and other air quality management districts with similar NOx Emission requirements of 14 ng/J or 20 PPM.
Specifications Indoor and Outdoor Installation Options Water Pressure: 15-150 psi Power Vent or Power Direct Vent Design • Pressure Only Relief Valve Requires (Min 140,000 btu/h, 150 psi). Ultra-Low NOx Emissions • 40 psi or above recommended for max. flow 4” Category III Vent Warranty Gas convertible from natural gas to propane using the included conversion kit • 15-year limited warranty on heat exchanger in residential applications.
310U SERIES NON-CONDENSING The 310U features a max flow rate of 8.0 gpm providing enough hot water to run three showers at the same time. Indoor models include an integrated temperature controller. A remote control is included as a standard for outdoor models. Complies with SCAQMD Rule 1146.2 and other air quality management districts with similar NOx Emission requirements of 14 ng/J or 20 PPM.
Specifications Indoor and Outdoor Installation Options Water Pressure: 15-150 psi Power Vent or Power Direct Vent Design • Pressure Only Relief Valve Requires (Min 190,000 btu/h, 150 psi). Ultra-Low NOx Emissions • 40 psi or above recommended for max. flow 4” Category III Vent Warranty Gas convertible from natural gas to propane using the included conversion kit • 15-year limited warranty on heat exchanger in residential applications.
510U SERIES NON-CONDENSING The 510U series is well suited for residential/commercial applications such as small restaurants and beauty salons. Indoor models include an integrated temperature controller. A remote control is included as a standard feature for outdoor models. Utilizing commercial-grade copper alloy for the heat exchanger tubing, the D3U series is also suitable for heavier-residential usages such as combination space heating and domestic recirculation systems.
Specifications Indoor and Outdoor Installation Options Water Pressure: 15-150 psi Power Vent or Power Direct Vent Design • Pressure Only Relief Valve Requires (Min 199,000 btu/h, 150 psi). Ultra-Low NOx Emissions • 40 psi or above recommended for max. flow 4” Category III Vent Warranty Gas convertible from natural gas to propane using the included conversion kit • 15-year limited warranty on heat exchanger in residential applications.
H3M SERIES The H3M Series is a high efficiency, ultra-low NOx condensing model with up to 0.91 Uniform Energy Factor, allowing for the use of 3”or 4” PVC venting or Category IV stainless steel. Indoor models have an integrated temperature controller and outdoor models include a remote control as a standard feature. T-H3M-DV T-H3M-OS CONDENSING Specifications 29 Gas Consumption Input Model Number* Type Minimum (BTU/H) Inlet Gas Pressure** Maximum (BTU/H) Minimum (in. W.C.) Maximum (in. W.C.
Specifications Indoor and Outdoor Installation Options Warranty Power Vent or Power Direct Vent Design • 15-year limited warranty on heat exchanger in residential applications. Ultra-Low NOx Emissions • 5-year limited warranty on heat exchanger in commercial applications. Flow Rate up to 6.6 GPM • Values based on factory testing. 0.4 GPM required for continuous fire after initial ignition • 5-year warranty on all parts. • Refer to takagi.
H3J SERIES The H3J series offers high efficiency Ultra-Low NOx condensing technology allowing for the use of 3” PVC venting and has 0” clearance to combustibles. Indoor models have an integrated temperature controller and outdoor models include a remote control as a standard feature. T-H3J-DV T-H3J-OS CONDENSING Specifications 31 Gas Consumption Input Model Number* Type Minimum (BTU/H) Inlet Gas Pressure** Maximum (BTU/H) Minimum (in. W.C.) Maximum (in. W.C.
Specifications Indoor and Outdoor Installation Options Warranty Power Vent or Power Direct Vent Design • 15-year limited warranty on heat exchanger in residential applications. Ultra-Low NOx Emissions • 5-year limited warranty on heat exchanger in commercial applications. Flow Rate up to 6.6 GPM • Values based on factory testing. 0.4 GPM required for continuous fire after initial ignition • 5-year warranty on all parts. • Refer to takagi.
H3S SERIES The H3S series offers high efficiency Ultra-Low NOx condensing technology allowing for the use of 3” PVC venting and has 0” clearance to combustibles. Indoor models are certified up to 10,100 ft. altitude. Indoor models have an integrated temperature controller and outdoor models include a remote control as a standard feature. T-H3S-DV T-H3S-OS CONDENSING Specifications 33 Gas Consumption Input Model Number* Inlet Gas Pressure** Type Minimum (BTU/H) Maximum (BTU/H) Minimum (in. W.C.
Specifications Indoor and Outdoor Installation Options Warranty Power Vent or Power Direct Vent Design • 15-year limited warranty on heat exchanger in residential applications. Ultra-Low NOx Emissions • 5-year limited warranty on heat exchanger in commercial applications. Flow Rate up to 8 GPM • Values based on factory testing. 0.4 GPM required for continuous fire after initial ignition • 5-year warranty on all parts. • Refer to takagi.
H3 SERIES Utilizing commercial-grade copper alloy for the heat exchanger tubing, the H3 is suitable for heavier residential usages such as combination space heating and domestic recirculation systems. Indoor models have an integrated temperature controller and outdoor models include a remote control as a standard feature. Indoor models are certified up to 10,100 ft. altitude. Complies with Ultra-Low NOx regulations.
Specifications Power Vent or Power Direct Vent Design Easy-Link up to 4 heaters or connect up to 20 heaters with a Multi-Unit Controller Ultra-Low NOx Emissions Warranty Flow Rate up to 10 GPM • 15-year limited warranty on heat exchanger in residential applications. Indoor and Outdoor Installation Options • Values based on factory testing. 0.4 GPM required for continuous fire after initial ignition • 5-year limited warranty on heat exchanger in commercial applications.
540P SERIES The 540P Series integrates a recirculation pump to provide instant hot water in residential applications with dedicated recirculation lines. The pump is easily controlled with a simple user interface and multiple pump settings allow you to customize pump operation to meet your needs while maximizing heater efficiency. Indoor models have an integrated temperature and pump controller and outdoor models include a remote control as a standard feature.
Specifications Indoor and Outdoor Installation Options Easy-Link with up to 3 other T-H3 heaters Power Vent or Power Direct Vent Design Warranty Ultra-Low NOx Emissions • 15-year limited warranty on heat exchanger in residential applications. Integrated recirculation pump • 5-year limited warranty on heat exchanger in commercial applications. Flow Rate up to 10 GPM • Values based on factory testing. 0.4 GPM required for continuous fire after initial ignition • 5-year warranty on all parts.
M50 SERIES The M50 Series, specifically designed for heavy-duty applications, is the largest Takagi tankless heater yet and the most powerful (14.5 GPM max) in the tankless industry. The M50 Series is suitable for commercial applications (hotels, restaurants, government, convalescent homes, etc.) that require high demand and the most durable of heaters.
Specifications Indoor and Outdoor Installation Options Power Vent or Power Direct Vent Design Low NOx Emissions Easy-Link up to 4 heaters or connect up to 10 heaters with a Multi-Unit Controller Warranty • 6-year limited warranty on heat exchanger in commercial applications. Flow Rate up to 14.5 GPM • Values based on factory testing. 0.4 GPM required for continuous fire after initial ignition Water Pressure: 15-150 psi • 5-year warranty on all parts. • Refer to takagi.
CT-199 SERIES The CT-199 is well suited for commercial applications such as small restaurants and beauty salons. Complies with Ultra-Low NOx regulations. Utilizing commercial-grade copper alloy for the heat exchanger tubing, the H3C is also suitable for combination space heating and domestic recirculation systems. Indoor models have an integrated temperature controller and outdoor models include a remote control as a standard feature. Indoor models are certified up to 10,100 ft. altitude.
Specifications Indoor and Outdoor Installation Options Easy-Link up to 4 heaters or connect up to 20 heaters with a Multi-Unit Controller Power Vent or Power Direct Vent Design Create a Multi-Unit system with the 100112691 controller 96% thermal efficiency Ultra-Low NOx Emissions Flow Rate up to 10 GPM Warranty • Values based on factory testing. 0.4 GPM required for continuous fire after initial ignition • 6-year limited warranty on heat exchanger in commercial applications.
COMMERCIAL TANKLESS RACK SYSTEM Commercial tankless rack systems allow the power of tankless technology to be customized with unprecedented flexibility. Takagi offers wall mount, free standing and back-to-back configurations with easy options to integrate storage when needed. For jobs that require more than six units, custom solutions are available. Installation is easier than ever as the rack systems are constructed from a light weight frame and just three connections for hot water, cold water and gas.
MULTI- UNIT SYSTEMS Takagi tankless water heaters have the capability to link multiple heaters together to act as a system. The primary heater is rotated to ensure even operation of all heaters. The D2,510U/C, H3, CT-199, and M50 series models can Easy-Link up to four units using included communication cables.
APPLICATION DIAGRAMS Takagi tankless water heaters can be used in a wide variety of applications. Whether used in recirculation systems, in conjunction with storage tanks or with heating applications, our commercial units are built to provide continuous hot water when sized appropriately for your home’s needs. *Local codes dictate proper compliance.
MULTIPLE UNITS Multiple Units with Easy-Link Hot Water to Fixtures Hot Water Return Gas Supply Cold Water Supply Expansion Tank 1. Recirculation pump shall be sized for 2-4 gpm per activated heater (4-8 gpm for T-M50) 2. Recirculation pump shall be controlled by an aquastat. The minimum suggested differential should be 10°F 3. The automatic air should be installed at the highest location of the system in accordance with the manufacturer’s instructions.
MULTI-UNITS Multiple Unit with Storage Hot Water to Fixtures Gas Supply T-1 P-2 T-2 Hot Water Return Cold Water Supply Expansion Tank P-1 1. Tank circulation pump, P-1, should be controlled by tank aquastat, T-1. 2. Tank aquastat, T-1, should be set 20°F below water heater set temperature. 3. Pump P-1 should be sized to provide flow necessary to heat the storage tank. Refer to the water heater’s spec sheet for pressure drop curves. All application diagrams shown are concept drawings only.
SOLAR TANKLESS BACK UP COLLECTOR SENSOR TANKLESS WATER HEATER H SOLAR COLLECTOR TEMPERED HOT WATER C GAS SUPPLY T HOT WATER RETURN FIELD SUPPLIED PUMP AQUASTAT TANKLESS SUPPLY LINE COLD WATER INLET TANK SENSOR SOLAR CONTROL STORAGE TANK NOTES: 1. Ensure field supplied tank aquastat is in top 1/3 section of the tank. 2. Set tank aquastat 10°F lower than tankless unit set point. 3.
VENTING DIAGRAMS (EXAMPLES) 4” Sidewall Termination (Please check the wall thickness for proper installation) 2 1 3 Models KJr2/110U, K4/310U, D2/510U 4” Combustible Sidewall Termination Kit Part Number: 100112726 4 Qty. 1 100112419 4" Sidewall Hood Terminator 1 2 100112732 4" Wall Thimble (4.0"-7.
Up4” & Sidewall Out Standard Installation Combustible Wall Termination (With Condensate Trap) (Please check the wall thickness for proper installation) 3 1 Models KJr2/110U, K4/310U, D2/510U 4” Combustible Sidewall Termination (With Condensate Trap) 4 2 Kit Part Number: 100112775 Qty. 1 100112419 4" Sidewall Hood Terminator 1 2 100112732 4” Wall Thimble (4.0”-7.
DIRECT VENT, CONCENTRIC SIDEWALL TERMINATION KJr2, K4, D2 Models 1 3 Models KJr2, K4, D2 Kit Part Number: 100112421 2 1 100112550 Concentric Intake/Exhaust Kit 1 2 100112549 Universal Appliance Adaptor 1 3 NA 3” Aluminum Flex 1 4 100112184 Direct Vent Conversion Kit 1 12-18” Sidewall Thickness Direct Vent, Concentric Termination Kit Part Number: 100112420 4 M50 Model Qty.
Vertical Venting: Flat Roof Termination 4” Rooftop Termination Models KJr2/110U, K4/310U, D2/510U 1 3 Qty.
5” Sidewall Termination 2 Model M50 Qty. 5" Combustible Sidewall Termination 3 1 4 Kit Part Number: 100112729 1 100112594 5" Sidewall Hood Terminator 1 2 100112734 5" Wall Thimble (4.0"-7.0") 1 3 100112587 5" 90 degree Elbow 1 4 100112599 5" Female-Female Adaptor 1 1 2 3 Model M50 5" Non-Combustible Sidewall Termination Kit Part Number: 100112768 53 Qty.
5” Sidewall Termination (With Condensate Traps) 2 Model M50 5" Combustible Sidewall Termination (With Condensate Trap) 3 4 Kit Part Number: 100112777 1 Qty. 1 100112594 5" Sidewall Hood Terminator 1 2 100112734 5" Wall Thimble (4.0"-7.
5” Rooftop Termination Model M50 1 7 3 Qty. 5” Flat Roof Termination 2 Kit Part Number: 100112730 1 100112596 5” Extreme Weather Rain Cap 1 2 100112590 5” Storm Collar 1 3 100112592 5” Flat Roof Flashing 1 4 100112591 5” Vertical Firestop 1 5 100112587 5” 90 degree Elbow 2 6 100112597 5” Universal Appliance Adaptor 1 7 Refer to Accessories Chart Straight Pipe TBD 7 1 7 4 3 2 7 5 4 6 7 Model M50 Qty.
CONCENTRIC VENT SERIES Horizontal Installa�on 1 Horizontal Installation Models 110C, 310C, 510C 100266115 (11.5") 1 Standard Sidewall Kits* 2 Straight Pipe 100266134 (19.
CONCENTRIC VENT SERIES Vertical Installation Models 110C, 310C, 510C Ver�cal Installa�on 1 Roof Termination (38") 100266118 100266136 (1/12 to 6/12 pitch) 2 100266137 (8/12 to 16/12 pitch) Tile/Shingle Roof Flashing 100266138 (6/12 to 12/12 pitch) 1 100266187 (Flat Roof) 100266133 (10") 3 Straight Pipe 100266134 (19.
VENTING COMPONENTS Simple Leak-Proof Gasketed Connections – No Sealant Required. High Quality – Category III /IV Stainless Steel. Versatile – Vertical and Horizontal Terminations. Convenient – Vent Kits Available. UL Listed. All Connections have Heat-Resistant Rubber Gaskets.
Nova Vent Part # DESCRIPTION Nova Vent Part # DESCRIPTION TERMINATION INTAKE HOOD (GALVANIZED) 100112547 4” Termination Tee 100112545 3” 100112546 4” 100112547 5” 100112595 5” Termination Tee 100112419 4”Exhaust Sidewall Vent Terminator (Hood) 100112594 5”Exhaust Sidewall Vent Terminator (Hood) 100112415 4” Rain Cap 100112548 4” Extreme Weather Rain Cap 100112596 5” Extreme Weather Rain Cap 100112163 3” Concentric PVC Termination FIRESTOP 100112408 4” Firestop Direct Vent, Concentric Side
TK -1 1 T-K 0C-N Jr2 I T-K /TK11 Jr2 0U -O TK -I S/ -3 T K 1 T-K 0C-N -110 U4I E IN /T T-K K 4-3 OS 10 TK U/T -5 10 K-31 I C0 T-D UNI 2E IN /T T-D K251 OS 0U T-H / -I 3M TK-5 1 DV 0U T-H -E 3M T-H -OS 3J -D V T-H 3J -O T-H S 3S T-H -DV 3S T-H OS 3DV T-H /T K354 OS 0P T-M /T -N K 50 -5 IH 4 N 0P TC G -N T-1 EH 99 I/O ACCESSORIES ACCESSORIES 100112194 Outdoor Vent Cap 100266729, 100266730 Recess Box Standard Flange 100112188 100112187 100112190 100112718 100187904 Pipe Cover 100112691 Multiple Unit Co
Hard Water and Tankless Heaters Hard water can adversely affect plumbing systems, from water piping to water fixtures and even down to the water heating system. For piping and fixtures, hard water can create more pressure loss and reduce water flow. For water heaters, it can even reduce energy efficiency and damage the heater.
Where is hard water found? Hard water is everywhere. In fact, more than 85% of American homes have hard water.
I = Indoor O = Outdoor Venting Intake Exhaust High efficiency ultra-low NOx condensing tankless. 3” PVC venting. 0” clearance to combustible. 1/2” Gas 3/4” Water 120 VAC Intake & Exhaust 3”, 70’ Max, 5 elbow Max OR 4”, 100’ Max, 5 elbow Max N/A 120 - 140 (100 - 140) T-H3J-OS High efficiency ultra-low NOx condensing tankless. 3” PVC venting. 0” clearance to combustible.
I = Indoor O = Outdoor Models Easy-Link Temperature GPM (EL) (with (Max) Multi-Unit remote) Per Unit (MU) Connection: Gas/Water Power Venting Intake Exhaust Uniform Energy Factor Max BTU/h Dimension/ Weight Great for apartments, condos and summer cabins. 3/4” Gas/Water 120 VAC 3” / 5” Concentric, 43’ Max N/A 120 -140 (100 -140) 6.6 0.81 140,000 H= 20-1/4” W= 13-3/4” D= 7-3/4” 33 lbs Adds 1 more shower over the 110 at minimal increase in cost.
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