
Mr. Heater Forced Air Propane Heater
Score: 87/100
Vornado VMHi500
Score: 85/100Rankings

The Mr. Heater F271390 is a portable forced-air propane heater delivering up to 125,000 BTU to heat spaces as large as 3,125 sq ft, featuring Quiet Burner Technology and built-in safety switches. Its weight and requirement for well-ventilated outdoor use limit indoor portability. Ideal for professionals needing high-output heating on job sites.

The Vornado VMHi500 offers whole-room heating up to 250 sq ft with a sleek metal design and comprehensive safety features. Its weight and the scarcity of third-party reviews are notable trade-offs. Ideal for bedrooms or home offices where style, safety and reliable heating are priorities.
| Attribute | ![]() | ![]() |
|---|---|---|
— | 1,500 Wbest | |
125,000 BTU/hbest | 5,118 BTU/h | |
3,125 sq ftbest | 250 sq ft | |
— | 720 minbest | |
| ↓ lower better | 1.361 kgbest | 4.354 kg |
— | 120 Vbest | |
1 years | 5 yearsbest |
Click an attribute name to sort · Green = best, red = worst (relative to this comparison)
| Attribute | ![]() | ![]() |
|---|---|---|
Power & Performance(3) | ||
BTU Output (BTU/h) | 125000 BTU/h | 5118 BTU/h |
Heating Area (sq ft) | 3125 sq ft | 250 sq ft |
Power Source | Propane | electric |
Build & Design(2) | ||
Weight (kg) | 1.361 kg | 4.354 kg |
Dimensions (H × W × D) (cm) | 42.5 × 30.5 × 54.6 cm cm | 29.7 x 23.4 x 23.9 cm cm |
General(1) | ||
Warranty (years) | 1 years | 5 years |

Products in the top-left offer the best value (high score, low price).

Professional reviewers consistently commend the F271390 for its high BTU output, reliable forced-air heating, and safety features such as the high-temperature limit switch. They also highlight the Quiet Burner Technology as a differentiator that makes the unit suitable for outdoor jobs where noise matters.
Everyday users echo the professional praise, emphasizing rapid heating of large spaces, long runtime on a single tank, and the convenience of the included hose and regulator. The most common feedback revolves around the unit's weight and the requirement to operate only in well-ventilated environments, but overall sentiment is positive for its intended outdoor/commercial use.

“Provides whole-room heating up to 250 sq ft using Vortex circulation technology for even temperature distribution”

“Stylish powder-coated metal cabinet that complements home or office décor while offering durability”



Professional reviewers and editors, though limited, emphasize the VMHi500's premium metal construction, advanced safety suite, and efficient Vortex heat circulation that mimics furnace performance in a compact form. The auto climate control and remote operation are highlighted as convenient features that set it apart from basic heaters.
Everyday users generally praise the heater for its reliable whole-room warmth, stylish design, and ease of use with remote and timer functions. Safety features such as cool-touch metal and tip-over protection receive positive mentions, while the lack of extensive reviews leaves some buyers uncertain about long-term reliability.