Takagi · T-M50 Commercial Series
Takagi T-M50-P
The Takagi T-M50-P is a non-condensing tankless water heater — a DHW-only appliance, not a boiler — firing 15,000 to 380,000 BTU/h on propane with 82% thermal efficiency and up to 14.5 GPM.
Key figures
- Max input
- 380,000 BTU/h
- Max CSA output
- —
- AFUE
- —
- Min input
- 15,000 BTU/h
Input is gas energy consumed; output is heat delivered. Never size from input alone.
Takagi T-M50-P in practice
The T-M50-P is the propane indoor model in Takagi's T-M50 tankless water heater family. Takagi — T-M50 Commercial Gas Tankless Water Heater Specification Sheet (TCGSS00314) prints an input range of 15,000 to 380,000 BTU/h with 82% thermal efficiency, up to 14.5 GPM maximum flow, 1" NPT water connections and a 1" NPT gas connection.
The unit measures 25-1/4 × 24-7/8 × 12-3/4 in (H × W × D) and weighs 113 lb, and it is installed indoors. 5" Category III stainless steel to 50 ft, 5 elbows max; 5" combustion-air intake with optional kit. It is a tankless water heater, not a boiler: Takagi's catalogue contains no boiler line, and where the family is used with storage tanks, recirculation or combined domestic & heating applications, the appliance remains a water heater whose installation and system design follow the official manual and local code.
No Canadian availability statement appears on the captured pages, so Canadian availability is recorded as unknown. Sizing, venting design and gas-supply capacity are engineering decisions for a licensed contractor following the current installation manual.
Best suited to
- Indoor domestic hot-water service at up to 380,000 BTU/h input
- Projects needing 82% thermal efficiency operation with up to 14.5 GPM
- Commercial loads with multi-unit linking (Easy-Link up to 4; Multi-Link up to 10 with controller)
Applicability and support
- Model number
- T-M50-P
- Canadian availability
- unknown
- Production status
- current
- ROMA supplies
- Confirmed at consultation
- ROMA services
- Confirmed at consultation
- Warranty
- Not verified
Where ROMA provides on-site service
On-site service is currently offered in Greater Vancouver, BC, including Vancouver, Burnaby, Richmond, Surrey, Coquitlam, North Vancouver, West Vancouver, New Westminster, Port Coquitlam, Port Moody, Delta, Langley, Maple Ridge, Abbotsford, Chilliwack, White Rock, Pitt Meadows, Tsawwassen, Anmore, Lions Bay, Belcarra, Bowen Island, Mission. Everything else on this site is reference information you can use anywhere in Canada.
Specifications
Published specifications
Values as published by Takagi. Units are shown with every value; notes flag conflicting sources or missing figures.
| Specification | Value | Note |
|---|---|---|
| Input | ||
| Input, maximum | 380,000 BTU/h | As printed in Takagi — T-M50 Commercial Gas Tankless Water Heater Specification Sheet (TCGSS00314). |
| Input, minimum | 15,000 BTU/h | As printed in Takagi — T-M50 Commercial Gas Tankless Water Heater Specification Sheet (TCGSS00314). |
| Efficiency | ||
| Thermal efficiency | 82 % | As printed in Takagi — T-M50 Commercial Gas Tankless Water Heater Specification Sheet (TCGSS00314). |
| Domestic hot water | ||
| Maximum flow rate | 14.5 GPM | Factory-tested maximum; 0.4 GPM required for continuous fire after ignition (0.5 GPM activation on commercial sheets). |
| Venting and air | ||
| Venting | 5" Category III stainless steel to 50 ft, 5 elbows max; 5" combustion-air intake with optional kit | |
| Physical and connections | ||
| Hot/cold water connections | 1" NPT | |
| Gas connection | 1" NPT | |
| Dimensions (H × W × D) | 25-1/4 × 24-7/8 × 12-3/4 in (H × W × D) | |
| Weight | 113 lb | Approximate shipping weight per the specification sheet. |
| Operating limits and other | ||
| Installation | Indoor | |
| Technology | Non-condensing tankless water heater | |
| Manifold capability | Easy-Link up to 4 units; Multi-Link up to 10 units with TM-MC01 controller | As printed in the specification sheet. |
Frequently asked questions
Is the Takagi T-M50-P a boiler?
No. It is a tankless water heater (DHW-only). Takagi's catalogue contains no boiler line; where the family is used with hydronic or radiant systems, the appliance is still a water heater and the system must be designed by a licensed contractor.
What is the input range of the T-M50-P?
Takagi — T-M50 Commercial Gas Tankless Water Heater Specification Sheet (TCGSS00314) prints 15,000 BTU/h minimum and 380,000 BTU/h maximum input on propane, with up to 14.5 GPM and 82% thermal efficiency.
Where can I find the official documentation for the T-M50-P?
The specification sheet TCGSS00314 is served from takagi.com (https://www.takagi.com/media/8087/T-M50-Spec-Sheet.pdf), and the product page https://www.takagi.com/products/tankless-water-heaters/t-m50-p lists the installation and owner's manuals.
Questions about the Takagi T-M50-P?
Describe what the boiler is doing and get a straight answer about the next step.
On-site service in Greater Vancouver, BC. ROMA lists “Open 7 days” on its site; call to confirm same-day availability.
Sources and verification
- Takagi — T-M50 Commercial Gas Tankless Water Heater Specification Sheet · TCGSS00314 · accessed September 9, 2026
- Takagi — T-M50-P product page · accessed September 9, 2026
Facts checked September 9, 2026. Last updated September 9, 2026. Technical reviewer: not yet assigned.