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Takagi TK-540P-NIH - Residential 199,000 BTU - Natural Gas Tankless Water Heater - Indoor
Model:
TK-540P-NIH
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Features
Fuel
Natural Gas
Location
Indoor
# of Showers
3.0
UEF
0.93
Energy Star Certification
Yes
- Integrated Recirculation Pump
- The TK-P tankless water heater comes with a built-in integrated recirculation pump. A recirculation pump is designed to provide hot water to the home
- High Efficiency Condensing Technology
- The TK-540P-NIH features the latest in water heating condensing technology. This means that the unit can deliver some of the highest efficiency standards on the market, keeping dollars in your pocket.
- Ultra Low-NOx Emissions
- The TK-540P-NIH is designed to qualify for the most stringent Low-NOx standards. These standards coincide with SCAQMD rules and other air quality management districts.
- Heavy Duty Heat Exchanger
- The primary heat exchanger is built out of copper, offering better heat transfer than stainless steel and designed to be more resilient against corrosion. A.O. Smith water heaters are built to last and save you money in the process.
- Multiple Safety Features
- TK-P 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.
- Space Saving Design
- Takagi tankless heaters take up less space than their conventional counterparts. The convenient wall mount design means they can fit in nearly any home layout and offer additional flexibility.
Takagi has been delivering innovative residential and commercial hot water solutions for over 60 years. The TK-540P-NIH is Takagi's high efficiency, Ultra-Low NOx indoor model, it keeps emissions low by featuring the latest in water heating technology. Switching on when a hot water tap is opened, a built in temperature sensor helps to maintain hot water within a one degree set point during use, and the system automatically shuts off when the tap is closed saving you energy. The TK-P line utilizes condensing technology to provide higher Uniform Energy Factors and reduce your fuel costs. An on board controller gives you simple and complete control over your water heater.
California residents see
WARNING: This product contains chemicals known to the State of California to cause cancer and birth defects or other reproductive harm..
For more information go to: www.p65Warnings.ca.gov
Specifications
TK-540P-NIH
Overview
Product Category
Water Heater - Tankless
UPC
671657021351
General Information
Type
Tankless Water Heater
Product Category
Water Heater - Tankless
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/Stainless
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.
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.
Direct Vent
Venting Category
Venting Category
Venting Category describes what type of flue material can be used in water heater installations. Category III: Stainless Steel, Category IV: ABS, PVC, CPVC, PolyPro, Stainless Steel
IV
Storage Type
Tankless
Application
Residential
Mount Type
Wall
Installation Location
Indoor
Maximum Altitude
10100 Feet
Includes Pump
Yes
Gas Conversion Kit
Not Available
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.
199000 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
9.5 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
7.5 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
6.3 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
5.4 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.
0.93
Minimum Flow Rate
0.5 GPM
Flow Rate at 77F Temperature Rise
4.9 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
Primary Vent Pipe Diameter
4 Inches
Gas Connection Size
3/4 Inch
Cold Water Inlet
3/4 Inch
Hot Water Outlet
3/4 Inch
Product Height
23 5/8 Inches
Product Width
17 3/4 Inches
Product Depth
11 1/4 Inches
Product Weight
61 Pounds
Certifications
CSA Listed
Yes
Energy Star Listed
Yes
AHRI Certified
Yes
ANSI Certified
Yes
UPC Listed
Yes
NSF Certified
NSF Certified
The National Sanitation Foundation has developed public health standards and certification programs to protect the world's food, water, consumer products and environment.
Yes
AHRI Reference Number
10014414
Warranty Information
Parts Warranty
Parts Warranty
A warranty is a safeguard from defects in manufacturing and can vary in length and terms. Some manufacturers require registration for extended warranty benefits, be sure to check out features and the warranty document. To see the manufacturer's warranty statement, click on the Manuals tab. Learn More
5 Years
Heat Exchanger Warranty
15 Years
Reviews
(29)
Takagi TK-540P-NIH Reviews & Ratings
Customer Rating
4.69
(29 Ratings)
90% recommend this product
5
(23)
(23)4(5)
(5)3(0)
(0)2(0)
(0)1(1)
(1)
Works great, have it installed over 2 months now
By Kenneth D.
Northwood, New Hampshire
Purchased 01/28/2020 |
Review Posted 04/11/2020
Easy installation
Kenneth D. Recommends This
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Rating Breakdown
4/5
5/5
5/5
4/5
I like this water heater.
By Madoud A.
Lagrange ga, Georgia
Purchased 01/20/2020 |
Review Posted 03/26/2020
I bought one of this 4 month ago l like it. We are 3 adult and no one have complain yet. Then is greater than storing hot eater until it is needed.
Madoud A. Recommends This
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Rating Breakdown
4/5
4/5
4/5
4/5
Long Lasting Dependability
By Sarah C.
Houston, Texas
Purchased 02/05/2020 |
Review Posted 03/12/2020
I bought this model of Takagi water heater to replace my Takagi Junior which I figure is about 15 years old. I was so impressed at how long the first heater laster - without any service! I am hoping to having equally good luck with this newer model!
Sarah C. Recommends This
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Rating Breakdown
5/5
5/5
5/5
5/5
We have had Takagi tankless watet heaters for over 20 years.
By Kenneth H.
Carlsbad, California
Purchased 10/27/2019 |
Review Posted 03/09/2020
The old Takagi water heaters were the best, but this new one is better and cost less! We moved to another house and put one here too. The old water heaters are still working very well.
Kenneth H. Recommends This
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Rating Breakdown
5/5
5/5
5/5
5/5
Excellent choice for replacement
By Taejin S.
Fullerton, California
Purchased 01/17/2020 |
Review Posted 02/10/2020
Easy to i stall & use. Compact and neat.
Taejin S. Recommends This
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Rating Breakdown
5/5
5/5
5/5
5/5
This unit works great, seems to be quality and is priced right
By Dean M.
Mahwah, New Jersey
Purchased 12/24/2019 |
Review Posted 01/19/2020
This was an easy choice when replacing our 15+ year old direct vent tank unit. Same price or cheaper. Takes up less space and easy to install. Screw it to a wall and make your water and gas connections. The hardest part is running at 3" PVC line out a sidewall.
Dean M. Recommends This
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Rating Breakdown
5/5
5/5
5/5
5/5
Takagi
By William C.
Kuna, Idaho
Purchased 12/23/2019 |
Review Posted 01/19/2020
Only had it for a couple of weeks but so far it has performed higher than my expectations. I guess time will tell after a few years.
William C. Recommends This
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Rating Breakdown
4/5
4/5
4/5
5/5
Second Takagi
By Howard H.
Merrimac, Wisconsin
Purchased 12/17/2019 |
Review Posted 01/16/2020
I purchased a Takagi tankless water heater 4 years ago and just purchased a second one for our lake home! Absolutely the best value for the money you can buy! Stop thinking about making the switch and do it! Unlimited supply of hot water when you need it. I will only buy a Takagi tankless water heater from now on!
Howard H. Recommends This
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Rating Breakdown
5/5
5/5
5/5
5/5
Great value
By Ken K.
Catawba, Virginia
Purchased 12/23/2019 |
Review Posted 01/14/2020
I purchased the TK110 to replace a TK-jr which had performed well in a high usage heating application for 12 years. The 110 is not an exact replacement vent,gas, and water connections have been relocated an inch or two requiring some plumbing revision.
The unit quit working after 1 week. BUT tech support is excellent. Diagnosed problem quickly, received replacement part next day. Total down time 2 days.
Excellent tech support. Excellent product.
The unit quit working after 1 week. BUT tech support is excellent. Diagnosed problem quickly, received replacement part next day. Total down time 2 days.
Excellent tech support. Excellent product.
Ken K. Recommends This
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Rating Breakdown
5/5
5/5
5/5
5/5
There were issues! - Though now resolved
By Debi S.
Northridge, California
Purchased 12/16/2019 |
Review Posted 01/07/2020
We were replacing a Takagi unit, after it failed (after 4 1/2 years), with an upgraded Takagi unit. The warranty would not be honored because, we were told, the unit had not been properly installed. Meanwhile, eComfort did a great job helping us to determine we were ordering the unit right for us. And delivery was amazingly quick. However, the manifold assembly with gas valve in the unit was faulty and had to be replaced and so we were still without a hot water heater. Due to weekends and holidays that required 11 days, and another 3 on top of that for another Takagi knowledgeable plumber to install it. It was bad enough when the first unit failed, but when the NEW one - fresh out of the box - didn't work, we were (underestandably?!?!) upset. This was just in time for the holidays and we had guests staying with us during this entire time. As darn inconvenient as it was (and it WAS!!!), it reminded us of just how very fortunate we are under normal circumstances ... and even when they weren't "normal."
I've rated the product as Good and Average. I believe Takagi is a good manufacturer for tankless hotwater heaters. When they're working, they work great. We were disappointed that the first unit gave up the ghost so quickly, but trusted the company's reputation & performance enough to buy from them again. Even great companies produce a "lemon" every now and then, it was just bad luck that we received one of them. HOWEVER, now that the unit is working, we're happy with it.
I've rated the product as Good and Average. I believe Takagi is a good manufacturer for tankless hotwater heaters. When they're working, they work great. We were disappointed that the first unit gave up the ghost so quickly, but trusted the company's reputation & performance enough to buy from them again. Even great companies produce a "lemon" every now and then, it was just bad luck that we received one of them. HOWEVER, now that the unit is working, we're happy with it.
Debi S. Recommends This
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Rating Breakdown
4/5
4/5
3/5
3/5
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Takagi TK-540P-NIH - Residential 199,000 BTU - Natural Gas Tankless Water Heater - Indoor
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