Head-to-head · Pelonis
Two real models, six near-identical listings, and no model number in any of the titles. Here is which is which.
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Pelonis sells two meaningfully different oil-filled radiators: the mechanical PHO15A2AGW, with two knobs, and the digital PSHO07JR4AGB, with a remote, a 24-hour timer, a 41–95°F thermostat and a child lock. Both run at 600, 900 or 1,500 W. Neither listing title names its model.
Search for a Pelonis oil-filled radiator and you get six listings that look almost the same. They are titled with feature strings rather than model numbers — *"Radiator Heater for Large Space, Electric Oil Filled Radiator, Dual Knobs, 1500W"* — and two of them carry word-for-word identical titles while costing different amounts.
That is a genuinely difficult shelf to buy from, and it is not the buyer's fault. So before writing anything we resolved each listing to a model number from the listing's own model field, then went to Pelonis's product page for that model. Two models came back clean. The rest could not be resolved, and they are named at the bottom of this page rather than quietly folded in.
| PHO15A2AGW (mechanical) | PSHO07JR4AGB (digital) | |
|---|---|---|
| Heat settings | 600 / 900 / 1,500 W | 600 / 900 / 1,500 W |
| Thermostat | Mechanical knob, unmarked | 41–95°F in 1°F increments |
| Controls | Two knobs | Touch panel plus remote |
| Modes | Three heat settings | ECO, Sleep and Memory |
| Timer | None | 24 hours |
| Child lock | None | Yes |
| Tip-over protection | Yes | Yes |
| Overheat protection | Yes | Yes, auto shut-off |
| Housing | Not stated | V0 flame-retardant |
| Portability | 4 caster wheels, carry handle | Not stated |
| Maker's coverage claim | None published | 255 sq ft |
| Our computed coverage | 150 sq ft at 10 W/sq ft | 150 sq ft at 10 W/sq ft |
| Safety listing (UL/ETL) | Not stated | Not stated |
| Warranty | 1 year | Not stated |
Published by Pelonis for each model number. "Not stated" means we looked on Pelonis's page for that model and it was not there.
The important row is the first one: they produce identical heat. Both top out at 1,500 W, which is the ceiling for any U.S. plug-in heater, so both deliver 5,118 BTU/h and both cost the same per hour at the same setting. Everything you are choosing between on this page is control, safety features and convenience — not warmth.
Most radiators in this price bracket advertise "3 heat settings" and leave it there, which means the only cost you can compute is the maximum. Pelonis publishes 600 W, 900 W and 1,500 W for both of these models, so every setting can be costed honestly.
| Wattage | Per hour | 1 h | 8 h |
|---|---|---|---|
| 600 W | 11.0¢ | $0.11 | $0.88 |
| 900 W | 16.5¢ | $0.17 | $1.32 |
| 1,500 W | 27.5¢ | $0.28 | $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.
At the rate below that is 11.0 cents an hour at 600 W against 27.5 cents at full output — and 5.0 A against 12.5 A, which matters as much as the money. A radiator idling at 600 W sits well inside a 15 A circuit's 12 A continuous allowance; the same radiator at 1,500 W is over that allowance on its own. The full circuit arithmetic.
| Heater | Draw at 120 V | 15 A circuit (12 A limit) | 20 A circuit (16 A limit) |
|---|---|---|---|
| 600 W | 5.0 A | Fits | Fits |
| 900 W | 7.5 A | Fits | Fits |
| 1,500 W | 12.5 A | Over the limit | Fits |
| Maximum continuous | — | 12 A = 1,440 W | 16 A = 1,920 W |
Draw computed as watts / 120 V. The continuous limit is 80% of the breaker rating, which follows from the NEC's requirement to size a circuit at 125% of a continuous load (NFPA 70, 210.19(A)(1) and 210.20(A)).
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.
Pelonis publishes 255 square feet for the PSHO07JR4AGB. Our sizing rule — 10 watts per square foot, average insulation, 8-foot ceiling — puts 1,500 W at 150 square feet. Pelonis's figure is about 1.7 times ours.
Neither number is a lie; they are different assumptions. A 255 sq ft claim implies roughly 5.9 W per square foot, which is achievable in a well-insulated, modern, draft-free room being topped up rather than heated from cold. Our 10 W/sq ft is the standard working figure for an average room. Use the wattage, not the claim — and if the room is drafty, multiply the watts you need by 1.25, or by 1.5 if it is unheated. Where the 10 W/sq ft rule comes from.
| 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) |
| 255 sq ft | 2,550 W | 8,701 | 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.
ECO modes are real and they do reduce consumption, but not by being more efficient. Every electric resistance heater converts essentially all the electricity it draws into heat; there is no such thing as an efficient setting. What an ECO mode does is modulate the wattage as the room approaches temperature, so the heater spends more of its time at 600 W and less at 1,500 W.
So the saving is real, it comes from running at lower wattage for more of the time, and "up to 40%" is the best case rather than a figure you should budget around. Your actual saving depends on the room, the target temperature and how long you run it. Why nothing about a heater's design makes it cheaper to run.
The underlying point is true and it is the reason to buy this type at all: an oil-filled radiator has no fan and no moving parts, so it makes no operating noise. It is the quietest kind of electric heater there is.
Treat the number itself as shorthand rather than a measurement, though. A quiet bedroom at night sits around 30 dB of ambient noise, so a sub-5 dB figure is well below what could be measured in any real room. Read it as "you will not hear it", which is accurate. If silence is the whole requirement, the quietest heaters covers the fanless types generally.
| If your priority is… | Buy |
|---|---|
| The lowest price for silent radiator heat | PHO15A2AGW — and compare both of its listings |
| Setting an actual temperature | PSHO07JR4AGB — 41–95°F to the degree |
| A child who can reach the controls | PSHO07JR4AGB — it is the one with a child lock |
| Overnight use on a schedule | PSHO07JR4AGB — 24-hour timer |
| A published warranty | PHO15A2AGW — 1 year; Pelonis states none for the digital model |
| Moving it between rooms | PHO15A2AGW — casters and a carry handle are published |
| Lower running cost | Neither. They are identical at identical settings. |
The decision, reduced.
The honest summary is that the digital model is the better heater for a bedroom or a nursery and the mechanical one is the better buy for a spare room, and the gap between them is smaller than the feature lists suggest — because the thing they both do, they do identically.
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 |  Pelonis PSHO07JR4AGBThe digital Pelonis: every one of its three wattages is published, the thermostat sets to the degree, and it is the only oil-filled radiator here with a child lock. | A radiator with a child lock and a real set-point | 150 sq ft | 12.5 A | $109.99 · Check on Amazon |
| 2 |  Pelonis PHO15A2AGWOil-filled warmth without the oil-filled price — a mechanical two-knob radiator that does the one thing the type is good at and publishes nothing it does not have. | Silent radiator heat at the lowest price here | 150 sq ft | 12.5 A | $79.99 · 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 · A radiator with a child lock and a real set-point
The digital Pelonis: every one of its three wattages is published, the thermostat sets to the degree, and it is the only oil-filled radiator here with a child lock.
| Published specification | |
|---|---|
| Rated power | 600 W / 900 W / 1,500 W at 120 V (all three published) |
| Thermostat | 41–95°F in 1°F increments |
| Modes | ECO, Sleep and Memory |
| Timer | 24 hours |
| Controls | Touch panel plus remote |
| Construction | 108 “Volcano” thermal vents |
| Maker's noise claim | “<5 dB” — fanless; see the note on the comparison page |
| Safety | Tip-over protection, overheat auto shut-off, child lock, V0 flame-retardant housing |
| Heat type | Oil-filled |
| Maker’s coverage claim | 255 sq ft |
| Safety listing | Pelonis publishes a V0 flame-retardant housing, tip-over protection, overheat auto shut-off and a child lock, but does not name a UL or ETL mark. Check the rating plate. |
Who it is for
A bedroom, nursery or study where silence is the requirement, someone else in the house should not be able to change the settings, and you want to set an actual temperature and a shut-off time.
What it is not for
Fast heat, or a room much over 150 sq ft on our arithmetic. It is a radiator: it warms slowly and steadily, and that is the design rather than a fault.
Sources for this entry
2 · Silent radiator heat at the lowest price here
Oil-filled warmth without the oil-filled price — a mechanical two-knob radiator that does the one thing the type is good at and publishes nothing it does not have.
| Published specification | |
|---|---|
| Rated power | 600 W / 900 W / 1,500 W at 120 V (all three published by Pelonis) |
| Controls | Two knobs — mechanical thermostat and power level |
| Noise | No fan — the type's defining property |
| Portability | Four heavy-duty caster wheels and a front carry handle |
| Safety | Tip-over safety switch, overheat protection, power indicator light |
| Warranty | 1 year |
| Heat type | Oil-filled |
| Maker’s coverage claim | None published — the coverage figure above is ours |
| Safety listing | No listing mark is published in the listing text; check the rating plate for UL or ETL. |
Who it is for
A bedroom or study where silence matters more than speed, and where the budget will not stretch to a De'Longhi.
What it is not for
Anyone who needs heat quickly, anyone who wants to set an actual temperature rather than a knob position, or a room with a child who can reach the controls — there is no child lock.
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.
Four other Pelonis oil-filled listings are currently on sale and none of them appears here. Two are marketed as "2025 Upgraded" with an adjustable thermostat and three heating modes; one is a higher-priced listing with a remote, ECO mode and a 24-hour timer. We could not resolve any of them to a model number, which means we could not open a Pelonis page for them and check what the manufacturer actually publishes.
We are not going to describe a heater from its own marketing copy and call that a specification, and we are not going to assume that a listing which sounds like the PSHO07JR4AGB is one. If those listings gain a model number, they will be worth revisiting — several of them may well be good heaters. Today they are unverifiable, which is a different thing from bad.
There are two distinct models. The PHO15A2AGW is mechanical — two knobs, no timer, no child lock, but a published 1-year warranty and caster wheels. The PSHO07JR4AGB is digital — a 41–95°F thermostat, ECO, Sleep and Memory modes, a 24-hour timer, a remote and a child lock. Both run at 600, 900 or 1,500 W and produce identical heat.
Because Pelonis lists the same model, PHO15A2AGW, more than once with word-for-word identical feature-string titles and no model number. The listings report the same model code but can carry different prices, so search the model number and compare every result before buying.
Both models Pelonis documents run at 600 W, 900 W or 1,500 W. At 1,500 W that is 12.5 A and about 27.5 cents an hour at the U.S. average rate; at 600 W it is 5 A and about 11 cents an hour.
Pelonis publishes 255 sq ft for the PSHO07JR4AGB. At the standard 10 watts per square foot, 1,500 W covers about 150 sq ft in an average room with an 8-foot ceiling — so the claim is roughly 1.7 times our figure and assumes a well-insulated, draft-free space being topped up rather than heated from cold.
It saves energy by modulating the wattage down as the room approaches temperature, not by being more efficient — every electric heater converts essentially all its electricity into heat. The 40% figure is a best case, and your real saving depends on the room and how long you run it.
Pelonis does not name a UL or ETL mark on either model's product page. It does publish tip-over protection and overheat protection for both, plus a child lock and a V0 flame-retardant housing on the digital model. Check the rating plate on the unit before buying if a lease or insurer requires a listed heater.
The quietest type there is, and the one with the most marketing to strip away. Four picks, silence first.
Silent and slow against fast and audible — and what the thermal-mass argument is really worth.
Silent by design, not by adjective — the fanless types, plus the one unit that publishes a dB figure.
A $23 heater makes the same heat as a $460 one. Here is what the money actually buys, and what it does not.
A correction, not a product pick: equal wattage means equal cost, and here is what actually varies.
Near-instant directional warmth against slow, silent, room-wide steadiness. Same running cost, opposite failure modes.