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Electactic 36" Ultra-Thin Insert Review

Name: Electactic 36" Ultra-Thin Insert
Brand: Electactic
SKU: B099DWXJPW

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

If you're after 36 inches of fire across the wall, the Electactic 36" Ultra-Thin Insert delivers, with 1,500 watts of supplemental heat and a choice of 12 flame colors on top. With a thermostat as well, it suits a cosy corner that never had a chimney.

Price$134.98Price on Sep 30, 2026 · may have changed

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

Compare side by side ↗

Specifications

Brand	Electactic
Category	Built-in & wall-mounted inserts
Stated width	36 in
Heater output	1500 W
Stated heat output	5100 BTU/h
Installation type	Recessed (in-wall)
Coverage (stated)	Up to 400 sq ft
Heat settings	Two (low and high), per the listing
Flame colors	12, plus 12 ember-bed colors
Controls	Remote, touch panel
Thermostat	Stated in the listing
Timer	Up to 8 hours
Safety	Overheat shut-off
ASIN	B099DWXJPW

Full listing title: Electactic 36 Inch Electric Fireplace Insert Ultra-Thin - Recessed & Wall-Mounted Fireplace Heater with Thermostat, Adjustable Flame, Remote Control - Linear with Timer, Touch Screen, 750/1500W

Listing evidence

Stated width	36 Inch Exact listing
Heater output	750/1500W Exact listing
Stated heat output	5100 BTU Exact listing
Installation type	Recessed Exact listing

Updated October 2026

Exact listing, ASIN B099DWXJPW

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 ↗

Electactic 36" Ultra-Thin Insert

7.1Good · out of 10$134.98 Price on Sep 30, 2026 · may have changed

Stated: 36 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 and a 400 sq ft coverage claim. 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

36 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, up to 400 sq ft claimed. Supplemental heat for the room you sit in: it takes the edge off a cold evening while the furnace stays turned down. The 400 sq ft figure is the seller's; real coverage depends on your insulation, windows and ceiling. Our supplemental heat planner puts it in numbers for your room.

12 flame colors, 12 ember-bed 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, a 400 sq ft coverage claim is pitched at a main room, not a box room. All those flame colors are made for showing off when friends come round.

For a bedroom or a study, at 36 in wide it fits a bedroom wall or a study. The timer (up to 8 hours) switches it off after you fall asleep. The thermostat holds the temperature instead of baking the room. The low heat setting is gentle enough for a smaller room.

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 the flame on its own in summer: the listing we read doesn't say the flame runs without heat
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

What Electactic promises

The seller states, word for word, in the Electactic 36" Ultra-Thin Insert listing:

The minimalist, modern frame makes the fireplace look built-in, turning your wall into a stylish centerpiece.
12 Flame Colors + 12 Bed Colors – Customize the visual effects as per your liking.
750W energy-saving or 1500W high-efficiency, warming spaces up to 400 sq. ft.
Instantly change flame colors, adjust temperature, or set a timer without worrying about lost or unresponsive remotes.
This indoor electric heater runs at a whisper-quiet 45 dB with a sleep mode for undisturbed relaxation.

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

Electactic 36" Ultra-Thin Insert, view 3

Size, power and what's in the box

What the Electactic 36" Ultra-Thin Insert listing names:

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

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

Electactic 36" Ultra-Thin Insert, view 4

Price and cost per inch of width

$134.98 Price on Sep 30, 2026 · may have changed

At the price on Sep 30, 2026, each stated inch of width costs about $3.75. 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 B099DWXJPW), where today's price, stock and seller apply.

Electactic 36" Ultra-Thin Insert, 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.

Want the flame without the heat in summer? The Innoflame 36" Insert with Log Set (7.7/10) states a flame-only mode.

Our take

The verdict

Our favourite thing about the Electactic 36" Ultra-Thin Insert is 36 inches of fire across the wall, closely followed by 1,500 watts of supplemental heat. No buyer reviews yet, so the Electactic 36" Ultra-Thin Insert has to win you over on paper. The catch with this Electactic recessed or wall-mounted fireplace: no flame-only mode in the listing, while most picks here state one. We'd pick the Electactic 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 thermostat set once, the timer for bedtime, and a quick dust of the glass now and then. Our maintenance guide has the rest.

Summer

Check whether the flame can run without the heater; the listing we read doesn't say so.

The one thing we'd check first

One thing to settle before the Electactic 36" Ultra-Thin Insert ships: check your wall, because the 36-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 Electactic 36" Ultra-Thin Insert stacks up against the closest alternative, the Electactic 21" Insert Log Heater Set.

Criterion	Electactic 36" Ultra-Thin Insert	Electactic 21" Insert Log Heater Set
Our rating	7.1/10	7.1/10
Width	36 in	21 in
Coverage claim	400 sq ft	450 sq ft
Flame colors	12	Not stated
Flame without heat	Not stated	Stated

Both score 7.1/10. The Electactic 21" Insert Log Heater Set adds a bigger coverage claim (450 sq ft) and a flame-only mode, while the Electactic 36" Ultra-Thin Insert brings a wider unit (36 in) and more flame colors (12).

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

3 / 10

Listing documentation

7 / 10

Fit & compatibility

8 / 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 Electactic 36" Ultra-Thin Insert 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 Electactic 36" Ultra-Thin Insert state?

Its listing states a 36-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 Electactic 36" Ultra-Thin Insert 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 Electactic 36" Ultra-Thin Insert?

Its listing states a 36-inch width, a 1,500 W heater, 12 flame colors, a thermostat and a 8-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 Electactic 36" Ultra-Thin Insert?

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 Electactic 36" Ultra-Thin Insert?

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 Electactic 36" Ultra-Thin Insert 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 ↗All Electactic products Comparison tool All product reviews