Special Offer
Hover to zoom
1 Of 5
Takagi TK-310U - 5.3 GPM at 60° F Rise - 0.82 UEF - Gas Tankless Water Heater - Outdoor
Model: TK-310U-E-NG
+
Share This Product
-
Product Description
-
26Reviews
-
Recommended Accessories
-
How-To Articles
-
Manuals
Product Description
+−
Fuel
Location
Outdoor
# of Showers
UEF
Fuel
Natural Gas
Location
Outdoor
#of Showers
2.5
Uniform Energy Factor
0.82
Features
Features
- Ultra-Low NOx Emissions
- The TK-310U-E-N is designed to qualify for the most stringent Low NOx standards. This includes SCAQMD standards and other air quality management districts meant to limit pollution in the southwest United States.
- Heavy Duty Heat Exchanger
- The heat exchanger is built out of commercial-grade copper, providing much better heat transfer than standard stainless steel and designed to be more resilient towards corrosion. Takagi water heaters are built to last and save you money in the process.
- Multiple Safety Features
- These models come with a long list of safety features standard. These include: built in freeze protection, manual reset hi limit, an overheat cutoff fuse, inlet and outlet thermistors to monitor temperatures, and a built-in flame sensor.
- Operating Options
- Outdoor models come standard with a remote control. The TK-310U-E-N can also be field converted to operate on liquid propane with its included conversion kit.
Takagi has been delivering innovative residential and commercial hot water solutions for over 60 years. Their line of tankless water heaters are unmatched in quality and diversity, providing the perfect hot water solution for any situation. The TK-310U-E-N features a copper heat exchanger, which helps to stabilize outgoing water temperature and reduce pressure drops compared to a standard stainless steel exchanger. The TK-310U-E-N is also designed to meet Ultra-Low NOx standards, meaning it's good for you wallet and the environment.
Specifications
General Information
Type
Tankless Water Heater
Medium
Medium
Medium refers to the substance that carries heat through the heating system. Systems are either designed to use either Hot Water or Steam as a medium, and components are usually specific to one or the other.
Hot Water
Heat Exchanger Material
Copper
Fuel Type
Fuel Type
To create heat, some form of fuel is required. Fuel Type specifies what the product uses as an input to create heat.
Natural Gas
Combustion Type
Combustion Type
Condensing appliances use leftover thermal energy from combustion gases to heat water in a secondary heat exchanger, resulting in higher efficiency and lower exhaust temperature.
Non-Condensing
Vent Type
Vent Type
Products that use combustion (burning) of fuel to create heat also create potentially dangerous gasses that need to be exhausted (AKA "Vented"). Depending on the product, venting can be done via a chimney, through a side wall, or use a second vent to provide fresh air to the appliance.
Outdoor (No Venting)
Storage Type
Tankless
Mount Type
Wall
Installation Location
Outdoor
Maximum Altitude
6000 Feet
Includes Pump
No
Gas Conversion Kit
Included
UPC
671657237783
Additional Model Numbers
TK-310U-E-N, TK-310U-E-NG
Performance
Maximum Input Capacity
Maximum Input Capacity
The Maximum Input Capacity describes how quickly the appliance will use fuel when delivering it's maximum capacity. The units may change depending on the fuel being used.
190000 BTU
Minimum Input Capacity
15000 BTU
Flow Rate at 40F Temperature Rise
Flow Rate at 40F Temperature Rise
Flow rate measures how much hot water your heater can deliver. Click Learn More to determine the appropriate temperature rise to use based on your location. Learn More
7.9 GPM
Flow Rate at 50F Temperature Rise
Flow Rate at 50F Temperature Rise
Flow rate measures how much hot water your heater can deliver. Click Learn More to determine the appropriate temperature rise to use based on your location. Learn More
6.2 GPM
Flow Rate at 60F Temperature Rise
Flow Rate at 60F Temperature Rise
Flow rate measures how much hot water your heater can deliver. Click Learn More to determine the appropriate temperature rise to use based on your location. Learn More
5.3 GPM
Flow Rate at 70F Temperature Rise
Flow Rate at 70F Temperature Rise
Flow rate measures how much hot water your heater can deliver. Click Learn More to determine the appropriate temperature rise to use based on your location. Learn More
4.5 GPM
Uniform Energy Factor
Uniform Energy Factor
Uniform Energy Factor (UEF) is a measurement of water heater energy efficiency. The higher the energy factor, the more efficient the water heater.
0.82
Minimum Flow Rate
0.5 GPM
Flow Rate at 77F Temperature Rise
4.1 GPM
Ultra Low NOx Emissions
Ultra Low NOx Emissions
NOx is a byproduct of the combustion process, and it's output is regulated in some jurisdictions. Many regulators mirror SCAQMD rules, which regulate air quality for some parts of Southern California. Ultra Low NOx appliances emit less than 10-14 ng/J (nanogram per Joule) of NOx. Learn More
Yes
Electrical Data
Voltage
120 Volts
Phase
1
Frequency
60 Hz
Dimensions
Gas Connection Size
3/4 Inch
Cold Water Inlet
3/4 Inch
Hot Water Outlet
3/4 Inch
Product Height
20 1/2 Inches
Product Width
13 3/4 Inches
Product Depth
9 1/2 Inches
Product Weight
38 Pounds
Certifications
CSA Listed
Yes
AHRI Certified
Yes
AHRI Reference Number
9007178
Warranty Information
Parts Warranty
Parts Warranty
A warranty is a safeguard from defects in manufacturing and can vary in length and terms. To see the manufacturer's warranty statement, click on the Manuals tab. Learn More
5 Years
Heat Exchanger Warranty
15 Years
Fuel
Location
Outdoor
# of Showers
UEF
Fuel
Natural Gas
Location
Outdoor
#of Showers
2.5
Uniform Energy Factor
0.82
Features
Features
- Ultra-Low NOx Emissions
- The TK-310U-E-N is designed to qualify for the most stringent Low NOx standards. This includes SCAQMD standards and other air quality management districts meant to limit pollution in the southwest United States.
- Heavy Duty Heat Exchanger
- The heat exchanger is built out of commercial-grade copper, providing much better heat transfer than standard stainless steel and designed to be more resilient towards corrosion. Takagi water heaters are built to last and save you money in the process.
- Multiple Safety Features
- These models come with a long list of safety features standard. These include: built in freeze protection, manual reset hi limit, an overheat cutoff fuse, inlet and outlet thermistors to monitor temperatures, and a built-in flame sensor.
- Operating Options
- Outdoor models come standard with a remote control. The TK-310U-E-N can also be field converted to operate on liquid propane with its included conversion kit.
Takagi has been delivering innovative residential and commercial hot water solutions for over 60 years. Their line of tankless water heaters are unmatched in quality and diversity, providing the perfect hot water solution for any situation. The TK-310U-E-N features a copper heat exchanger, which helps to stabilize outgoing water temperature and reduce pressure drops compared to a standard stainless steel exchanger. The TK-310U-E-N is also designed to meet Ultra-Low NOx standards, meaning it's good for you wallet and the environment.
Specifications
General Information
Type
Tankless Water Heater
Medium
Medium
Medium refers to the substance that carries heat through the heating system. Systems are either designed to use either Hot Water or Steam as a medium, and components are usually specific to one or the other.
Hot Water
Heat Exchanger Material
Copper
Fuel Type
Fuel Type
To create heat, some form of fuel is required. Fuel Type specifies what the product uses as an input to create heat.
Natural Gas
Combustion Type
Combustion Type
Condensing appliances use leftover thermal energy from combustion gases to heat water in a secondary heat exchanger, resulting in higher efficiency and lower exhaust temperature.
Non-Condensing
Vent Type
Vent Type
Products that use combustion (burning) of fuel to create heat also create potentially dangerous gasses that need to be exhausted (AKA "Vented"). Depending on the product, venting can be done via a chimney, through a side wall, or use a second vent to provide fresh air to the appliance.
Outdoor (No Venting)
Storage Type
Tankless
Mount Type
Wall
Installation Location
Outdoor
Maximum Altitude
6000 Feet
Includes Pump
No
Gas Conversion Kit
Included
UPC
671657237783
Additional Model Numbers
TK-310U-E-N, TK-310U-E-NG
Performance
Maximum Input Capacity
Maximum Input Capacity
The Maximum Input Capacity describes how quickly the appliance will use fuel when delivering it's maximum capacity. The units may change depending on the fuel being used.
190000 BTU
Minimum Input Capacity
15000 BTU
Flow Rate at 40F Temperature Rise
Flow Rate at 40F Temperature Rise
Flow rate measures how much hot water your heater can deliver. Click Learn More to determine the appropriate temperature rise to use based on your location. Learn More
7.9 GPM
Flow Rate at 50F Temperature Rise
Flow Rate at 50F Temperature Rise
Flow rate measures how much hot water your heater can deliver. Click Learn More to determine the appropriate temperature rise to use based on your location. Learn More
6.2 GPM
Flow Rate at 60F Temperature Rise
Flow Rate at 60F Temperature Rise
Flow rate measures how much hot water your heater can deliver. Click Learn More to determine the appropriate temperature rise to use based on your location. Learn More
5.3 GPM
Flow Rate at 70F Temperature Rise
Flow Rate at 70F Temperature Rise
Flow rate measures how much hot water your heater can deliver. Click Learn More to determine the appropriate temperature rise to use based on your location. Learn More
4.5 GPM
Uniform Energy Factor
Uniform Energy Factor
Uniform Energy Factor (UEF) is a measurement of water heater energy efficiency. The higher the energy factor, the more efficient the water heater.
0.82
Minimum Flow Rate
0.5 GPM
Flow Rate at 77F Temperature Rise
4.1 GPM
Ultra Low NOx Emissions
Ultra Low NOx Emissions
NOx is a byproduct of the combustion process, and it's output is regulated in some jurisdictions. Many regulators mirror SCAQMD rules, which regulate air quality for some parts of Southern California. Ultra Low NOx appliances emit less than 10-14 ng/J (nanogram per Joule) of NOx. Learn More
Yes
Electrical Data
Voltage
120 Volts
Phase
1
Frequency
60 Hz
Dimensions
Gas Connection Size
3/4 Inch
Cold Water Inlet
3/4 Inch
Hot Water Outlet
3/4 Inch
Product Height
20 1/2 Inches
Product Width
13 3/4 Inches
Product Depth
9 1/2 Inches
Product Weight
38 Pounds
Certifications
CSA Listed
Yes
AHRI Certified
Yes
AHRI Reference Number
9007178
Warranty Information
Parts Warranty
Parts Warranty
A warranty is a safeguard from defects in manufacturing and can vary in length and terms. To see the manufacturer's warranty statement, click on the Manuals tab. Learn More
5 Years
Heat Exchanger Warranty
15 Years
Product Specs
+−
Specifications
General Information
Type
Tankless Water Heater
Medium
Medium
Medium refers to the substance that carries heat through the heating system. Systems are either designed to use either Hot Water or Steam as a medium, and components are usually specific to one or the other.
Hot Water
Heat Exchanger Material
Copper
Fuel Type
Fuel Type
To create heat, some form of fuel is required. Fuel Type specifies what the product uses as an input to create heat.
Natural Gas
Combustion Type
Combustion Type
Condensing appliances use leftover thermal energy from combustion gases to heat water in a secondary heat exchanger, resulting in higher efficiency and lower exhaust temperature.
Non-Condensing
Vent Type
Vent Type
Products that use combustion (burning) of fuel to create heat also create potentially dangerous gasses that need to be exhausted (AKA "Vented"). Depending on the product, venting can be done via a chimney, through a side wall, or use a second vent to provide fresh air to the appliance.
Outdoor (No Venting)
Storage Type
Tankless
Mount Type
Wall
Installation Location
Outdoor
Maximum Altitude
6000 Feet
Includes Pump
No
Gas Conversion Kit
Included
UPC
671657237783
Additional Model Numbers
TK-310U-E-N, TK-310U-E-NG
Performance
Maximum Input Capacity
Maximum Input Capacity
The Maximum Input Capacity describes how quickly the appliance will use fuel when delivering it's maximum capacity. The units may change depending on the fuel being used.
190000 BTU
Minimum Input Capacity
15000 BTU
Flow Rate at 40F Temperature Rise
Flow Rate at 40F Temperature Rise
Flow rate measures how much hot water your heater can deliver. Click Learn More to determine the appropriate temperature rise to use based on your location. Learn More
7.9 GPM
Flow Rate at 50F Temperature Rise
Flow Rate at 50F Temperature Rise
Flow rate measures how much hot water your heater can deliver. Click Learn More to determine the appropriate temperature rise to use based on your location. Learn More
6.2 GPM
Flow Rate at 60F Temperature Rise
Flow Rate at 60F Temperature Rise
Flow rate measures how much hot water your heater can deliver. Click Learn More to determine the appropriate temperature rise to use based on your location. Learn More
5.3 GPM
Flow Rate at 70F Temperature Rise
Flow Rate at 70F Temperature Rise
Flow rate measures how much hot water your heater can deliver. Click Learn More to determine the appropriate temperature rise to use based on your location. Learn More
4.5 GPM
Uniform Energy Factor
Uniform Energy Factor
Uniform Energy Factor (UEF) is a measurement of water heater energy efficiency. The higher the energy factor, the more efficient the water heater.
0.82
Minimum Flow Rate
0.5 GPM
Flow Rate at 77F Temperature Rise
4.1 GPM
Ultra Low NOx Emissions
Ultra Low NOx Emissions
NOx is a byproduct of the combustion process, and it's output is regulated in some jurisdictions. Many regulators mirror SCAQMD rules, which regulate air quality for some parts of Southern California. Ultra Low NOx appliances emit less than 10-14 ng/J (nanogram per Joule) of NOx. Learn More
Yes
Electrical Data
Voltage
120 Volts
Phase
1
Frequency
60 Hz
Dimensions
Gas Connection Size
3/4 Inch
Cold Water Inlet
3/4 Inch
Hot Water Outlet
3/4 Inch
Product Height
20 1/2 Inches
Product Width
13 3/4 Inches
Product Depth
9 1/2 Inches
Product Weight
38 Pounds
Certifications
CSA Listed
Yes
AHRI Certified
Yes
AHRI Reference Number
9007178
Warranty Information
Parts Warranty
Parts Warranty
A warranty is a safeguard from defects in manufacturing and can vary in length and terms. To see the manufacturer's warranty statement, click on the Manuals tab. Learn More
5 Years
Heat Exchanger Warranty
15 Years
Product Q&A
+−
Be the first to ask a question.
Recommended Accessories
+−
Expert Recommended Accessories
Hand Picked By Our Expert Bob
Required Accessories
Add All Required
Optional Accessories
How-To Articles
+−
.jpg)
By Bob D.
Manuals
+−
+
Ask Bob, Our Product Expert, A Question!
*Required Fields
+
Thank You For Submitting Your Question
Your submission has been sent successfully. Please give our experts up to two business days to respond.
Media Gallery
Takagi TK-310U - 5.3 GPM at 60° F Rise - 0.82 UEF - Gas Tankless Water Heater - Outdoor
×
Customer Review Images
