Roundup · Infrared
The type that works where every other type struggles — and the one whose weakness nobody selling it mentions.
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Infrared heaters warm objects and people directly instead of warming the air, so they feel effective almost instantly and work in drafty, high-ceilinged or leaky spaces where convection heaters struggle. The trade-off is that the warmth stops at the first solid object — step out of the line of sight and it is gone.
A convection heater warms the air, and the warm air then warms you. That works beautifully in a sealed room and badly in a leaky one, because in a leaky room you are paying to heat air that is on its way outside. An infrared heater skips the air entirely: it emits radiation that passes through the air almost unaffected and converts to heat when it lands on something solid — a wall, a floor, a workbench, you.
That is why infrared is the right answer in a garage, a workshop, a drafty sunroom, a high-ceilinged room or a space you only occupy for an hour at a time. In all of those, warming the air is either impossible or wasteful, and warming the person directly is neither. The full physics is on convection vs radiant heating, and the type explainer is infrared space heaters explained.
Infrared marketing leans harder on efficiency than any other category on this site, so it is worth being blunt: an infrared heater at 1,500 W costs 27.5 cents an hour at the U.S. average rate, which is exactly what an oil-filled radiator at 1,500 W costs, which is exactly what a ceramic tower at 1,500 W costs. There is no infrared discount. The energy going in is the energy coming out, for every electric resistance heater ever made.
| Wattage | Per hour | 1 h | 4 h | 8 h |
|---|---|---|---|---|
| 1,500 W | 27.5¢ | $0.28 | $1.10 | $2.20 |
Computed at 18.34¢/kWh — the U.S. residential average for June 2026 (EIA, Electric Power Monthly, Table 5.6.A, released August 26, 2026). Your rate is on your own bill; substitute it and the arithmetic still holds. Figures assume full output for the whole period.
Where a genuine saving can appear is in hours, not watts. If radiant warmth makes a drafty workshop usable after five minutes, and a convection heater would have needed forty minutes to make the same space tolerable, you ran the heater for less time and paid less. That saving is real, it is conditional on the room, and it is nothing at all like the device being more efficient.
The rate behind every figure on this site
18.34¢per kilowatt-hour
U.S. residential average for June 2026. EIA, Electric Power Monthly, Table 5.6.A, released August 26, 2026.
This is the most recent month EIA has published. Residential rates move seasonally and vary enormously by state — from roughly a dime per kilowatt-hour in parts of the South to more than 40¢ in Hawaii — so treat it as a national reference point, not as your rate.
Our standard rule — 10 watts per square foot, average insulation, 8-foot ceiling — puts 1,500 W at 150 sq ft, and that still applies if you are trying to raise the air temperature of a whole room. But raising the air temperature is frequently not what you are doing with an infrared heater. In a garage or a workshop you are heating a person at a bench, and the relevant question is not the floor area of the building but whether the heater can see the person.
| Room size | Watts needed | BTU/h | Plug-in heaters |
|---|---|---|---|
| 100 sq ft | 1,000 W | 3,412 | 1 |
| 150 sq ft | 1,500 W | 5,118 | 1 |
| 200 sq ft | 2,000 W | 6,824 | 2 (different circuits) |
| 300 sq ft | 3,000 W | 10,236 | 2 (different circuits) |
Computed as square feet x 10 W x insulation factor x (ceiling / 8 ft), for an average heated room — 10 W/sq ft, 8 ft ceiling. Heater count assumes the 1,500 W plug-in ceiling.
Treat the table above as the answer to “can this warm the whole room” — usually no, in the kind of space you bought infrared for — and treat line of sight as the answer to “will this make me comfortable”, which is usually yes. For the uninsulated case specifically, best space heaters for a garage works the demand arithmetic all the way through and reaches an uncomfortable conclusion.
Three units, ordered by how much their makers are willing to publish and by whether they solve the floor-space problem that comes with putting a hot appliance in a working space.
Ranked for fit, not for hype. Coverage and current draw are computed from each unit’s published wattage. Tap a row for the full write-up, or go straight to the listing.
| # | Product | Best for | Covers | Draw | Price |
|---|---|---|---|---|---|
| 1 |  Dr Infrared DR-968The one listing in this category that publishes its amp draw and its noise level, which is exactly the arithmetic everyone else leaves you to do — 12.5 A and 39 dB, both stated. | The published numbers | 150 sq ft | 12.5 A | $112.99 · Check on Amazon−10% |
| 2 |  Dr Infrared DR-978A hybrid: infrared for the person in front of it and a blower to push convected heat into the rest of the room, which is a genuine answer to radiant heating's shadowing problem. | Radiant plus circulated air | 150 sq ft | 12.5 A | $99.99 · Check on Amazon |
| 3 |  Heat Storm HS-1500-PHXWall-mounted, which removes the entire tip-over failure mode rather than mitigating it — and Wi-Fi scheduling means it can heat a bathroom before you get in it. | Getting the heater off the floor | 150 sq ft | 12.5 A | $149.99 · Check on Amazon |
Coverage computed at 10 W/sq ft, average insulation, 8 ft ceiling. Draw computed as watts ÷ volts. Neither figure is a manufacturer claim.
Top pick · The published numbers
The one listing in this category that publishes its amp draw and its noise level, which is exactly the arithmetic everyone else leaves you to do — 12.5 A and 39 dB, both stated.
| Published specification | |
|---|---|
| Rated power | 1,500 W at 120 V |
| Current draw | 12.5 A (published) |
| Noise | 39 dB (published) |
| Element | Infrared quartz tube plus PTC |
| Thermostat | Electronic, 50–85°F |
| Other | 12-hour auto-off timer, IR remote, caster wheels, 19 lb |
| Heat type | Infrared quartz |
| Maker’s coverage claim | None published — the coverage figure above is ours |
| Safety listing | No listing mark published in the listing text; check the cabinet's rating plate for the UL or ETL mark. |
Who it is for
A reader who wants to compute the load rather than trust a claim: the published amp draw and decibel figure make it the easiest unit on this site to check.
What it is not for
A 15 A circuit shared with anything else, and not a small room where a 19 lb cabinet on wheels is in the way.
2 · Radiant plus circulated air
A hybrid: infrared for the person in front of it and a blower to push convected heat into the rest of the room, which is a genuine answer to radiant heating's shadowing problem.
| Published specification | |
|---|---|
| Rated power | 1,500 W at 120 V |
| Element | Dual heating — infrared quartz plus convection |
| Control | Remote |
| Maker's coverage claim | None published |
| Heat type | Infrared quartz |
| Maker’s coverage claim | None published — the coverage figure above is ours |
| Safety listing | No listing mark published in the listing text; check the cabinet's rating plate for the UL or ETL mark. |
Who it is for
A living room or basement where you want immediate radiant warmth on the sofa and the rest of the room to catch up rather than stay cold.
What it is not for
A bedroom where noise matters, and any space where the published specification list needs to be complete — this one is thinner than its DR-968 sibling.
3 · Getting the heater off the floor
Wall-mounted, which removes the entire tip-over failure mode rather than mitigating it — and Wi-Fi scheduling means it can heat a bathroom before you get in it.
| Published specification | |
|---|---|
| Rated power | 1,500 W at 120 V |
| Published output | 5,200 BTU/h |
| Mounting | Wall-mounted |
| Control | Wi-Fi app, remote scheduling |
| Element | Infrared quartz |
| Heat type | Infrared quartz |
| Maker’s coverage claim | None published — the coverage figure above is ours |
| Safety listing | No listing mark published in the listing text; check the rating plate for the UL or ETL mark. |
Who it is for
A bathroom, a small bedroom, a workshop corner — anywhere floor space is gone and a heater on the ground is a hazard.
What it is not for
Renters who cannot drill, and rooms where you want the heater to move with you.
Sources for this entry
And what we did not do: we have not tested these units, owned them, measured them or run them in a room. Everything above is compiled from published manufacturer specifications and live retail listings, with the electrical load, room coverage and running cost computed by us from the published wattage. The full method.
Every roundup on this site names something to skip. It costs us nothing to publish and it is the fastest way to tell whether a buying guide was written for you or for its commission.
Any infrared heater sold as “more efficient” than other electric heaters
This claim is everywhere in this category and it is false as stated. An infrared heater converts essentially 100% of its electricity into heat, exactly like a ceramic heater and exactly like an oil-filled radiator. What is true — and worth buying for — is that radiant heat can make you feel warm without first warming the whole volume of air in the room, so in a space where the air is constantly being replaced you may get the comfort you wanted for fewer running hours. That is a usage saving in specific conditions, not an efficiency advantage in the device. Selling it as the latter is a marketing claim wearing a physics costume.
An infrared heater as the only heat in a room you sit around in
Radiant heat travels in straight lines and stops at the first solid object. Whatever is in the beam gets warm; whatever is behind that — the far side of the table, the person in the armchair, your back — does not. In a living room where people sit in several places, an infrared heater produces a warm spot and a set of complaints. For that room you want convection, and the picks are on best space heaters for large rooms.
Infrared quartz heaters run a genuinely hot element behind a grille, and the cabinets of the portable units here are designed to stay far cooler than that element. None of the three publishes a surface-temperature figure, so we are not going to characterise how warm any of them gets to the touch. What we will say is that the 3-foot clearance rule the U.S. Fire Administration gives applies to this type with no asterisks, and that a wall-mounted unit removes an entire class of problem — nothing gets knocked over, and nothing gets draped.
No. At the same wattage they cost exactly the same — about 27.5 cents an hour at 1,500 W and the U.S. average rate. Every electric resistance heater is essentially 100% efficient. Infrared can save money in a drafty space by making you comfortable in fewer running hours, which is a usage saving and not a property of the device.
Shadowing. Radiant heat travels in straight lines and stops at the first solid object, so anything not in the heater's line of sight is not being heated — including the side of you facing away from it. In a room where people sit in several places, this produces a warm spot rather than a warm room.
They are not the obvious choice. A bedroom is usually a sealed, small, low-ceilinged space, which is exactly the case where convection works well and radiant offers no advantage — and most infrared units have fans, so they are not silent either. For a bedroom, see best space heaters for a bedroom or the oil-filled picks.
No heater adds or removes moisture from a room. What changes is relative humidity: warming air without adding water lowers the relative humidity, so the air feels drier. That happens with every heater type, including infrared, and it is a consequence of the temperature rise rather than anything the heater is doing to the water.
In this category, effectively yes — infrared is the part of the spectrum that carries the radiant heat these units emit. The useful distinction is not infrared versus radiant but radiant versus convection, which is the difference between heating objects and heating air. That comparison is on convection vs radiant heating.
Heats you rather than the room — excellent where every other type struggles, and the shadowing problem.
Ceramic heats the air, infrared heats you. Same cost, different rooms — the verdict per use case.
A two-car garage needs about 9,000 W. An outlet gives you 1,500. What to do instead.
Heating the air versus heating the things in it — the distinction under every other comparison.
Why the sizing rule under-sizes a basement by half, and the units that suit cold, below-grade space.
Near-instant directional warmth against slow, silent, room-wide steadiness. Same running cost, opposite failure modes.
Glass on three sides means the 1.5x correction. One plug-in heater runs out at about 100 sq ft.