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A note before you buy: Dyna-Glo’s only radiant-branded propane heater is the Grab N Go, a 10,000 BTU portable model we’ve already reviewed. There isn’t a second genuine Dyna-Glo radiant heater in the licensed catalog to cover a larger space. So we’re reviewing a real substitute here instead. Gasland’s MHA18BN is an 18,000 BTU radiant heater built for garages and workshops that need more coverage than the Grab N Go offers.
Top 3 Recommended
Who It’s For
This heater fits a garage, workshop or construction site up to 450 sq ft. Its built-in wheels and carry handle make it easy to roll between work areas. The enclosed tank cabinet also keeps the propane cylinder out of the way and out of sight. It’s a step up from the smaller Dyna-Glo Grab N Go for anyone needing more coverage. It’s also a lighter, more affordable option than a full-size cabinet-style vent-free heater, if all you need is portable radiant heat in a work space.
Radiant vs Forced Air for Workshop Use
Radiant heaters like this one warm people and surfaces directly in their path, with no fan and no moving parts to maintain. That makes them quieter and simpler than a forced-air unit, which matters in a small enclosed shop where fan noise gets old fast. The trade-off is coverage pattern. A forced-air heater pushes warm air throughout a space more evenly, while a radiant heater creates a clear warm zone directly in front of it and a cooler zone everywhere else. For a single-person workbench setup, that’s often exactly what you want. For a larger shop with multiple work areas, a forced-air heater like Dyna-Glo’s own Workhorse line may serve better.
Full Specs
| Spec | Detail |
|---|---|
| BTU output | 18,000 BTU max, adjustable across Low (6,000) / Middle (12,000) / High (18,000) |
| Coverage | Up to 450 sq ft |
| Dimensions | 17.5"D x 15"W x 21.7"H |
| Weight | 16.68 lbs |
| Design | Built-in casters and carry handle, tank housed inside the cabinet |
| Heating element | Ceramic, radiant baseboard design |
| Safety | Tip-over shutoff and low-oxygen shutoff protection |
| Tank fit | A 20 lb. propane tank fits inside the housing |
Source: Gasland MHA18BN product listing.
What Owners Praise
The three-level heat adjustment gets frequent praise for flexibility. Owners run it on Low for a mild day and step up to High only when needed, which stretches tank runtime noticeably. The built-in casters and handle also draw positive mentions, since owners can roll it between work areas rather than carrying it. Several reviews specifically call out how the enclosed tank design keeps the propane cylinder protected and out of the way in a busy workshop, unlike an open tank-top design.
What Owners Report as Drawbacks
The most common complaint is weight distribution — with the tank housed low in the cabinet, some owners note the unit feels front-heavy when rolling it over uneven garage or job-site flooring. A second theme: the ceramic heating element takes a little longer to reach full radiant output than some owners expect, especially on the Low setting. A smaller number of reviews mention wanting a longer power cord or hose reach for setups where the tank needs to sit farther from the work area, though the tank actually mounts inside the unit itself.
Pros & Cons
Pros
- Three heat settings from 6,000 to 18,000 BTU stretch tank runtime
- Built-in casters and handle make it easy to move around a work site
- Enclosed cabinet keeps the propane tank protected and out of the way
- Tip-over and low-oxygen shutoff protection standard
Cons
- Can feel front-heavy on uneven flooring due to the tank’s low position
- Ceramic element takes a little longer to reach full heat than radiant plaque designs
- At 450 sq ft coverage, it’s not sized for a large open shop floor
Positioning It for Best Results
Since this is a radiant design, where you place it matters as much as the BTU setting you choose. Point it at the actual work area, not just toward the center of the room, since radiant heat travels in a fairly direct line rather than filling a space evenly. Owners working at a fixed bench report the best results keeping the heater a consistent distance away and angled slightly upward, so the warmth reaches both hands and torso rather than just the floor in front of it. Moving the heater as you move between work areas, rather than trying to heat the whole shop from one spot, gets more out of the same BTU output.
Setup and Maintenance
Load the 20 lb. tank into the housing per the manual before connecting the regulator. Check the connection with a soapy-water test each season. Keep the casters clear of debris so the unit rolls smoothly between work areas. Wipe the ceramic element free of dust between uses to maintain even heat output, and always run it in a space with adequate ventilation despite the tip-over and low-oxygen safety features.
Casters and Mobility Between Jobs
The built-in casters matter more than they might seem on paper for anyone moving between a garage, a truck bed, and a job site regularly. Owners specifically note the difference between rolling the unit across a driveway versus carrying it, especially at nearly 17 lbs with a full 20 lb. tank loaded inside. A smooth, level surface is best for the casters; gravel or uneven ground makes rolling harder and is where the carry handle becomes the more practical option instead.
How It Compares
Against Dyna-Glo’s own Grab N Go, this Gasland model nearly doubles the coverage area, from roughly 200 sq ft to 450 sq ft, at a modest increase in weight. Against Dyna-Glo’s Workhorse forced-air heaters in the same hub, this radiant design skips the fan and the ventilation requirement, making it a better fit for a space without a lot of airflow, though it covers less total area than the larger forced-air units.
Best for Garages, workshops and job sites up to 450 sq ft
Related Products
See our full garage and workshop heater guide, or check our propane heater worth-it breakdown before buying. Pair it with these:
