Introducing the Master® 190TMHD-TEC-DF
Product News · June 2026
Master® 190TMHD-TEC-DF
Dual-Fuel Enclosed Flame Heater Built for Safety, Efficiency, and the Toughest Jobsites
Pinnacle Climate Technologies expands the Master® lineup with the 190TMHD-TEC-DF — a high-output, dual-fuel direct-fired heater delivering 99% fuel efficiency with an enclosed flame design for safer operation in demanding work environments.
The MASTER TEC’s enclosed flame gives the safety and efficiency of direct-fired technology — all while keeping the flame separate and away from construction debris and flammable objects.
The 190TMHD-TEC-DF is designed for contractors, rental companies, and facility managers who need serious heat output without compromising job site safety. Its enclosed flame keeps combustion away from construction debris and flammable materials, while dual-fuel capability lets you run on either natural gas or propane — giving you flexibility no matter where the job takes you. Add optional ducting to locate the unit outside the workspace entirely, reducing noise and freeing up room while directing heat exactly where it’s needed.
With 99% fuel efficiency and whisper-quiet operation under 70 decibels, the 190TMHD-TEC-DF delivers more heat for every dollar spent — and won’t drown out communication on the job. Need to circulate air without heat? Run it as a fan. Need to keep the unit out of the workspace entirely? Hook up optional ducting and send warmth exactly where it’s needed while keeping the heater out of the way.
Key features
Enclosed flame design
Enclosed combustion keeps the flame away from debris and flammable materials — the safety of direct-fired technology in a cleaner package
Dual-fuel flexibility
Easily switches between natural gas (NG) and propane (LP) — ideal for rental fleets and varied job sites
Fan-only mode + optional ducting
Run as a circulation fan when heat isn’t needed. Add ducting to locate the unit outside the space — reducing noise and freeing up room on the job site
CSA certified & OSHA compliant
Rated for well-ventilated indoor and outdoor use. Backed by a 1-year limited warranty.
Ultra-quiet operation
Under 70 decibels — quieter than standard gas-fired heaters, so the job site stays productive
99% fuel efficiency
Nearly all fuel goes directly to heat output — maximizing ROI on every tank
Specifications
| Model | 190TMHD-TEC-DF |
| Fuel type | Dual fuel — Propane (LP) / Natural Gas (NG) |
| Fuel efficiency | 99% |
| Noise level | < 70 dB |
| Voltage | 120V / 60 Hz |
| Product dimensions (L x W x H) | 38.5 x 24.25 x 30 in |
| Shipping dimensions | 43.875 x 25 x 31.5 in |
| Net weight | 142 lbs |
| Mount type | Portable with cord |
| Country of origin | USA |
| Certifications | CSA Certified, OSHA compliant |
| Warranty | 1-year limited |
The 190TMHD-TEC-DF is available now through Master Industrial Products.
Find full specs and dealer information:
