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DUMOS 42" Freestanding/Wall/Recessed Review

Name: DUMOS 42" Freestanding/Wall/Recessed
Brand: DUMOS
SKU: B0FSRGLNRF

7.1Good · out of 10Rated from the listing's specs, no buyer reviews yet

If you're after 42 inches of fire across the wall, the DUMOS 42" Freestanding/Wall/Recessed delivers, with 1,500 watts of supplemental heat and a choice of 13 flame colors on top. Think of this DUMOS recessed or wall-mounted fireplace for a cosy corner that never had a chimney: 7.1/10 on what its listing documents.

Price$129.91Price on Sep 30, 2026 · may have changed

Check the price on Amazon ↗Affiliate link · price and stock on Amazon

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Specifications

Brand	DUMOS
Category	Built-in & wall-mounted inserts
Stated width	42 in
Heater output	1500 W
Stated heat output	5100 BTU/h
Installation type	Recessed (in-wall)
Flame colors	13
Brightness levels	6
Controls	Remote, touch panel
Timer	Up to 12 hours
Flame without heat	Stated in the listing
Safety	Overheat shut-off
ASIN	B0FSRGLNRF

Full listing title: DUMOS 42" Freestanding Electric Fireplace, 1500W/750W Wall Mounted or Recessed Insert Fireplaces Heater with Remote Control,13 Adjustable Flame Color, 12H Timer, Touch Screen, Inky

Listing evidence

Stated width	42" Exact listing
Heater output	1500W Exact listing
Stated heat output	5100 BTU Exact listing
Installation type	Freestanding Exact listing

Updated October 2026

Exact listing, ASIN B0FSRGLNRF

Rating from a published formula

Compared with similar inserts

The two recessed or wall-mounted fireplaces closest to it on our rating, with a dated price.

Compare side by side ↗

DUMOS 42" Freestanding/Wall/Recessed

7.1Good · out of 10$129.91 Price on Sep 30, 2026 · may have changed

Stated: 42 in wide · 1,500 W heater · Recessed (in-wall)
Built-in & wall-mounted inserts

This product ↑

Electactic 21" Insert Log Heater Set

7.1Good · out of 10$109.98 Price on Sep 30, 2026 · may have changed

Stated: 21 in wide · 1,500 W heater · Freestanding
Built-in & wall-mounted inserts

See the review ↗

Benrocks 36" Insert, 27.3 in High

7.1Good · out of 10$369.99 Price on Sep 30, 2026 · may have changed

Stated: 36 in wide · 1,500 W heater · Recessed (in-wall)
Built-in & wall-mounted inserts

See the review ↗

Heater output, per the listing

The heat the listing states, next to 5,100 BTU. Plenty to take the chill off the room you sit in; how far it reaches depends on your insulation, windows and ceiling, and our supplemental heat planner turns your room into a rough answer.

What it has going for it

What changes in your evenings

42 in wide, per the listing. A compact size for a narrow wall, a bedroom or a study. Check in the installation drawing whether the figure is the frame or the viewing area, then hold it against your wall cavity.

1,500 W / 5,100 BTU. Supplemental heat for the room you sit in: it takes the edge off a cold evening while the furnace stays turned down. Real coverage depends on your insulation, windows and ceiling height. Our supplemental heat planner puts it in numbers for your room.

13 flame colors. Classic orange for winter evenings, something bolder when friends are over, or just the embers glowing behind a movie. How real each setting looks is for your eyes to judge in the photos and videos; the count is the seller's. Our flame effects guide sorts the settings you'll use from the ones you'll forget.

Living room or bedroom?

For the living room, all those flame colors are made for showing off when friends come round.

For a bedroom or a study, at 42 in wide it fits a bedroom wall or a study. The timer (up to 12 hours) switches it off after you fall asleep. The flame runs without heat, so it can glow on a warm night too.

On balance it is happiest in a bedroom, a study or a cosy corner.

Great for you if…

You have a narrow wall or a bedroom to warm up
You want the chill off one room on cold evenings
You like to change the mood of the room

Skip it if…

You want it to replace your heating: it is supplemental heat for one room
You'd rather wait for buyer reviews: none are captured for this listing yet
You want to run it from your phone: the listing names no app or WiFi

What DUMOS promises

The seller states, word for word, in the DUMOS 42" Freestanding/Wall/Recessed listing:

With an impressive 5100 BTU of heat output, it envelops your entire room in cosy comfort.
This electric fireplace heater offers 13 flame and 13 carbon colors, plus a color cycle mode that changes every 3 seconds for dynamic ambiance.
The timer function lets you set it for 1 to 12 hours.
Our slim electric fireplace offers three installation methods—recessed, wall-mounted, or freestanding.
Connect this electric fireplace straight to a suitable wall receptacle.

Hold these against the manual of the exact model before you order.

DUMOS 42" Freestanding/Wall/Recessed, view 3

Size, power and what's in the box

What the DUMOS 42" Freestanding/Wall/Recessed listing names:

42 in wide
Recessed or wall-mounted
Heater: 1,500 W, 5,100 BTU
Remote, touch panel

Check the opening, the depth and the outlet against your wall before you order.

DUMOS 42" Freestanding/Wall/Recessed, view 4

Price and cost per inch of width

$129.91 Price on Sep 30, 2026 · may have changed

At the price on Sep 30, 2026, each stated inch of width costs about $3.09. That puts it in the cheaper third of the 117 inserts we have a price for.

Cost per inch is only a rough yardstick: the heater, the flame options and the build count as much as the width.

The button opens the exact listing (ASIN B0FSRGLNRF), where today's price, stock and seller apply.

DUMOS 42" Freestanding/Wall/Recessed, view 5

A better fit for your room?

Want a wider fire for a bigger wall? The Touchstone Sideline 60" Smart (9.5/10) states 60 in.

Our take

The verdict

The DUMOS 42" Freestanding/Wall/Recessed earns its place with 42 inches of fire across the wall and 1,500 watts of supplemental heat. No buyer reviews yet, so this DUMOS recessed or wall-mounted fireplace has to win you over on paper. The catch with the DUMOS: no word on the supply it needs. We'd pick the DUMOS 42" Freestanding/Wall/Recessed if you have a narrow wall or a bedroom to warm up; otherwise, put it next to the Electactic 21" Insert Log Heater Set first.

Check the price on Amazon ↗Affiliate link · price and stock on AmazonAll built-in & wall-mounted inserts →

Living with it

Delivery day

A big, flat box with glass inside: open it with two people and check the front before the cardboard goes out.

The first evening

Run through the flame colors once, then settle on the one that suits the room. The 1,500 W / 5,100 BTU heater takes the chill off the room you sit in.

Day to day

The remote on the sofa arm, the timer for bedtime, and a quick dust of the glass now and then. Our maintenance guide has the rest.

Summer

Heater off, flame on: the glow stays on the wall in July without warming the room.

The one thing we'd check first

Before you add the DUMOS 42" Freestanding/Wall/Recessed to your cart: check your wall, because the 42-inch figure has to match your opening, and a listing width can mean the frame or just the viewing area.

Before you buy

Your wall

Draw the opening on the wall with painter's tape at the real size, step back, and check it against the installation drawing. Our recessed installation guide lists the clearances to ask about.

The outlet

Pick the outlet before you pick the finish: a free one close by, nothing heavy on the same circuit, and no extension cord. Our power requirements guide lists the questions to ask.

Heat for your room

1,500 W / 5,100 BTU stated. Treat it as supplemental heat for one room. Our supplemental heat planner turns your square footage into a rough answer.

Delivery and install

Glass-fronted inserts are big, flat boxes: plan two people for the unboxing, and decide early who frames the wall. Our built-in vs wall-mounted guide weighs recessed against wall-mounted.

How it compares

How the DUMOS 42" Freestanding/Wall/Recessed stacks up against the closest alternative, the Electactic 21" Insert Log Heater Set.

Criterion	DUMOS 42" Freestanding/Wall/Recessed	Electactic 21" Insert Log Heater Set
Our rating	7.1/10	7.1/10
Width	42 in	21 in
Coverage claim	Not stated	450 sq ft
Flame colors	13	Not stated

Both score 7.1/10. The Electactic 21" Insert Log Heater Set adds a bigger coverage claim (450 sq ft), while the DUMOS 42" Freestanding/Wall/Recessed brings a wider unit (42 in) and more flame colors (13).

Compare side by side ↗See the Electactic 21" Insert Log Heater Set review →

The score in detail

How we rated it

Spec-based rating on a 4.5–8.5 scale: 4.5 + average of the 4 criteria × 0.4. Capped at 8.5 because no customer evidence is included.

Key specifications

8 / 10

Build, warranty & certifications

4 / 10

Listing documentation

7 / 10

Fit & compatibility

7 / 10

This product has no captured buyer-review record yet, so its rating comes from the documented listing alone: four criteria scored out of 10 (key specifications; build, warranty and certifications; listing documentation; fit and compatibility), placed on a 4.5–8.5 scale. Read the full methodology.

Read the methodology →

Frequently asked questions

Is the DUMOS 42" Freestanding/Wall/Recessed any good?

We rate it 7.1/10 (good). The rating comes from its documented listing alone, as no customer-review record is captured yet.

What size and heater output does the DUMOS 42" Freestanding/Wall/Recessed state?

Its listing states a 42-inch width, a 1,500 W heater output and recessed (in-wall) installation. Those are the maker's figures, so check in the installation drawing whether the width means the frame, the firebox or the opening. Our supplemental heat planner puts 1,500 W in context for your room.

What power supply does the DUMOS 42" Freestanding/Wall/Recessed need?

The listing states 1,500 W heater. Read the supply, plug and circuit conditions on the exact listing and in the manual before you order, and never run a heater on an extension cord or a shared power strip. Anything beyond an existing standard outlet, hardwiring or 240 V included, is a job for a licensed electrician.

What do you get with the DUMOS 42" Freestanding/Wall/Recessed?

Its listing states a 42-inch width, a 1,500 W heater, 13 flame colors, a flame that runs without the heat and a 12-hour timer. Those are the seller's figures; for how real the flames look in a living room and how loud the fan runs at night, the buyer reviews are the better guide.

What should I check before ordering the DUMOS 42" Freestanding/Wall/Recessed?

Your wall: draw the opening on the wall with painter's tape at the real size, step back, and check it against the installation drawing. Our recessed installation guide lists the clearances to ask about. The outlet: pick the outlet before you pick the finish: a free one close by, nothing heavy on the same circuit, and no extension cord. Our power requirements guide lists the questions to ask. Heat for your room: 1,500 W / 5,100 BTU stated. Treat it as supplemental heat for one room. Our supplemental heat planner turns your square footage into a rough answer. Delivery and install: glass-fronted inserts are big, flat boxes: plan two people for the unboxing, and decide early who frames the wall. Our built-in vs wall-mounted guide weighs recessed against wall-mounted.

Where can I buy the DUMOS 42" Freestanding/Wall/Recessed?

We link to the exact listing on Amazon, where today's price, stock and seller apply. It is an affiliate link, and it has no effect on the rating.

Keep comparing

If the DUMOS 42" Freestanding/Wall/Recessed hasn't sold you yet, see where it ranks, read the guides that feature it or browse all built-in & wall-mounted inserts.

Read this before you buy

Built-in vs wall-mounted electric fireplaces →Planning a recessed electric fireplace →Electric fireplace power requirements explained →

Built-in & wall-mounted inserts ↗Comparison tool All product reviews