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T-M50 Takagi ASME Tankless Water Heater (Natural Gas)

Brand:
Takagi
SKU:
T-M50-ASME-NG
Rating:
(1)
Q&A:
(3)
T-M50 Takagi ASME Tankless Water Heater (Natural Gas)
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Hover image to zoom
T-M50-ASME-NG has been discontinued
Discontinued April 13, 2023
This product was discontinued by the manufacturer.

Product Highlights

Product Highlight: Fuel Type
Natural Gas
Product Highlight: Max Flow (GPM)
14.5 MAX GPM
Product Highlight: Installation Type
Indoor/Outdoor
Product Highlight: Temperature Range (F)
100°F to 185°F
Product Highlight: Height (Inches)
24.875" Height
Product Highlight: Width (Inches)
25-1/4" Width

Description

The Takagi brand has been discontinued by the manufacturer as of December 31, 2025. Suggested replacement units will be available on our website and replacement parts will continue to be available as supplies last. If you'd like any further assistance, please contact our customer service team.


Rebate
Think Green, Save Green. Rebate and incentive programs provide cash-back to consumers for the purchase of appliances that meet certain energy efficiency standards. Most states are offering rebates in the $50 to $250 range. You can search for rebates in your area from here.

Note: Isolation valves are not included but are recommended for installation.

The New T-M50 model, also known as "The Monster Tankless," is Takagi's most powerful tankless water heater yet and was developed specifically for heavy duty commercial applications. The T-M50 offers "true commercial grade" components and can be Easy-Linked and Multi-Linked to meet high demands. The T-M50 also offers a dual-combustion system for added redundancy.

Features:
  • ASME Version
  • 380,000 BTU/U, up to 14.5 GPM (Max)
  • The versatility of being installed either indoor, outdoor, or with a direct vent, all with the same unit.
  • Easy-link capability up to 4 units. You may connect up to 10 units and generate over 140 GPM using a multi-controller unit.
  • Features a Dual-Heat Exchanger system that allows for redundancy. In the event of an emergency, if one system goes down, the other system will still stay running.
  • Uses HRS copper, the most durable copper in the industry. HRS copper is stronger and harder than the standard copper, making it much more resilient against erosion and leaks.
  • Offers precise control of the water valves.
  • 8 new dipswitch temperature settings: 100 F, 115 F, 120 F, 135 F, 145 F, 155 F, 165 F, and 185 F. These temperatures are better suited for commercial applications.
  • 7-segment LED for error codes: Remote controller is not required to pinpoint problems.
  • Ignition indicators: indicates which burner is fired up at the moment.
  • Utilizes the air-fuel ratio rod for added safety.
  • The drum thickness has been increased 25% for greater heat exchanger performance and to be more resistant to thermal stress.
  • Increase in fin pitch: Fins are more "spread out" which improves the durability of the heat exchanger. More space in-between the fins reduces build-up. Higher temperatures at the top of heat exchanger reduces condensation.

Specs

Application:

Commercial

4-6 Showers

ASME:

Yes

Height (Inches):

24.875"

Product Type:

Tankless Heater

Width (Inches):

25-1/4"

Fuel Type:

Natural Gas

Depth (Inches):

12-1/4"

Efficiency:

80.2%

Inlet Gas Pressure:

5.0-10.5"W.C.

BTU (Min):

15000

Flow Rate:

0.5-14.5 GPM

Min Flow (GPM):

0.5

Max Flow (GPM):

14.5

BTU (Max):

380000

Voltage:

120v

Type:

Non-Condensing

Hertz:

60

Vent Type:

Direct Vent

Gas Input:

15000-380000 BTU/h

Flow Rate at 40F Temp Rise (GPM):

14.8

Flow Rate at 50F Temp Rise (GPM):

12.5

Water Connection:

1"

Flow Rate at 60F Temp Rise (GPM):

10.5

Temperature Range (F):

100°F to 185°F

Flow Rate at 70F Temp Rise (GPM):

8.5

PSI Range:

15-150 psi

Installation Type:

Indoor/Outdoor

Vent Size:

5"

Venting Requirement:

Category III Stainless Steel

Weight (lbs):

112 lbs

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T-M50 Takagi ASME Tankless Water Heater (Natural Gas)
SKU: T-M50-ASME-NG
(1)
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You May Also Need

88 Replacement Parts

Kit, Terminal, Remote Controller
SKU: 100074428
AO Smith
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This is a great product with great support.

We use this hot water heater in a dairy barn, and it has paid for itself in propane savings vs. a tank water heater.
Robin
Gill, CO
4 years ago
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Product Q&A

3 Questions
3 Questions
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Q: Does this unit vent on PVC?

Asked by big bite 10 years ago

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Verified Author and ReplyVerified Reply- SupplyHouse Staff

No, the T-M50 tankless heater requires category III 5" stainless steel exhaust venting. PVC is not approved for the exhaust venting of this unit.

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Q: can this unit be flush mounted in exterior stone wall with out running a vent pipe thru the roof?

Asked by pat patterson 11 years ago

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Verified Author and ReplyVerified Reply- SupplyHouse Staff

The unit can be mounted outside however it is important to adhere to the clearance requirements dictated in the installation instructions.

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Q: is there a vent kit

Asked by dont have one 14 years ago

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Verified Author and ReplyVerified Reply- PexSupply Staff

This heater requires 5" Category III venting, which we do not currently carry.

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