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Head-to-head · the two specialists

Dimplex vs Touchstone

Two brands that make almost entirely different things, and overlap in exactly one product class. Once you know which class your project is in, the decision takes about a minute.

By Scooter M.Published September 9, 2026Last reviewed September 9, 2026

Two similar armchairs placed side by side in a room

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These two brands mostly do not compete

Dimplex is a flame-technology and firebox company: ultrasonic mist, Revillusion built-in fireboxes 12 inches deep, and linear units with a 240 V option. Touchstone is a linear wall-unit company: 36 to 84 inches, three quality tiers, plus wall-mount three-sided models. They overlap in exactly one product class — linear wall units around 50 to 60 inches — and everywhere else the choice is made for you by what you are building.

That matters because most brand-versus-brand pages manufacture a false equivalence and then compare feature lists. Here the useful first question is not which brand is better; it is whether your project is even in the zone where they compete. If you are filling a masonry firebox, or you want a mist flame, or you want a hanging three-sided corner unit, one of these brands simply does not make the thing you need.

What you are buildingDimplexTouchstoneDo they compete?
A 50–60 in linear wall unitIgniteXL, PrismSideline, Sideline EliteYes — this is the whole contest
A very wide linear run (74–100 in)IgniteXL 74 and 100Sideline up to 84 inPartly — Dimplex goes wider
A narrow linear unit (36–45 in)Prism 34 inSideline 36, Forte 40, Sideline 45Touchstone owns this end
A built-in firebox needing an enclosureRevillusion RBF30/36/42Nothing comparableNo
A drop-in log set for a fireboxRevillusion RLG25Nothing comparableNo
A mist / water-vapor flameOpti-Myst rangeNothing comparableNo
A wall-mounted three-sided unitThree-sided options are built-inChesmont 50No

In the collision zone, three numbers decide it

At 50 inches you can genuinely put these units side by side, so this is where the comparison earns its keep. Three published specifications separate them, and none of them is flame color count.

Touchstone Sideline 50Dimplex IgniteXL 50Dimplex Prism 50
Depth5 1/2 in5 7/8 in7 in
Voltage120 V only120 V or 240 V120 V only
Wattage1,500 W1,500 W or 2,500 W1,230 W
Heat output~5,118 BTU/hr5,118 or 8,530 BTU/hr4,197 BTU/hr
Coverage claim400 sq ftUp to 1,000 sq ft400 sq ft
Warranty1 year (2-yr extension sold separately)5 years, parts + in-home service2 years
WeightNot published on the collection page73.96 lb75 lb
All figures are the manufacturers' own published specifications, linked in Sources. Coverage claims are supplemental-heat ratings rather than output figures — read the wattage row instead.

1. Depth — Touchstone, narrowly

Touchstone is thinnest at 5 1/2 inches, IgniteXL is 5 7/8, Prism is 7. In practice the first two land in the same place: a 2x6 wall gives about 5.5 inches of cavity, so the Sideline sits flush and the IgniteXL sits a fraction proud, the same relationship a 3.86-inch unit has with a 2x4 bay. Neither goes into a 2x4 wall. The Prism at 7 inches needs the wall built out further than either.

2. The 240 V path — Dimplex, decisively

This is the biggest genuine difference between the two brands and it is the reason to choose Dimplex. The IgniteXL is rated for 120 V or 240 V, and on 240 V it draws 2,500 W and produces 8,530 BTU per hour — about 67% more than the 5,118 BTU ceiling that constrains every 120 V plug-in unit, Touchstone's entire range included.

The condition is not small: 240 V means hardwiring, a dedicated circuit, an electrician and usually a permit. On an ordinary outlet the IgniteXL delivers exactly the same 5,118 BTU as the Sideline next to it. But if your room is genuinely large, this is one of the few honest routes to more heat in a linear format — the wider picture is on best electric fireplaces for large rooms.

3. Warranty — Dimplex, comfortably

Touchstone publishes a one-year standard warranty covering replacement of non-functioning electronic parts plus phone support, with a two-year extension available as a separate purchase. Dimplex publishes five years on the IgniteXL, covering parts and in-home service, and two years on the Prism.

In-home service is the part worth weighing. These units get framed into walls. A warranty that sends someone to you is a materially different product from one that requires you to remove a recessed fireplace and ship it, and that difference grows with how permanent your install is.

Quick picks: Dimplex and Touchstone

Ranked. The running cost column is computed from each unit's rated wattage, not quoted from a manufacturer. Tap a row for the full write-up.

#ProductBest forCost per hourPrice
1
Dimplex IgniteXL 50" Linear Fireplace (XLF50)The one linear unit here that can exceed the plug-in ceiling — 8,530 BTU on 240 V — plus a 5-year warranty with in-home service.
The only route to more than 5,118 BTU27.5¢1,500 W · 5,118 BTU
2
Touchstone The Sideline 50The reference 50-inch linear unit, thinner than either Dimplex, from a company that makes nothing else. One-year warranty is the catch.
The value pick in the collision zone27.5¢1,500 W · 5,118 BTU
3
Touchstone Sideline Elite 50Touchstone's frameless front. The best-looking of the three at this width, and still the same 1,500 W and the same one-year warranty.
Presentation, if depth is already solved27.5¢1,500 W · 5,118 BTU
4
Dimplex Opti-Myst Revive 25" Water Vapor FireplaceUltrasonic mist flame. Touchstone does not make anything comparable, and nor does anyone else.
Where Touchstone has no answer at allNo heaterflame effect only
5
Touchstone Chesmont Black 50 (3-Sided)A wall-mounted three-sided unit. Dimplex's three-sided options are built-in; this one hangs on a wall.
Where Dimplex has no answer27.5¢1,500 W · 5,118 BTU
Dimplex Prism 50" Linear Fireplace (BLF5051)1,230 W and 4,197 BTU — about 18% below the class ceiling — in the thickest unit here, on a 2-year warranty. The older Dimplex series.Skip this one
Neither brand's best work22.6¢1,230 W · 4,197 BTU

#ad Buy links are affiliate links — we earn a commission on Amazon purchases at no extra cost to you, and it never changes the ranking. How this site is funded. Running cost is computed at 18.34¢/kWh; see what these actually cost to run.

The claim we are not going to repeat uncritically

Dimplex markets the IgniteXL's Comfort$aver ceramic heating system as using 11% less energy than the leading quartz infrared heater, by automatically adjusting fan speed and heater wattage. We are reporting that as the manufacturer's claim, and it is worth understanding what it can and cannot mean.

Resistive heating is essentially 100% efficient at the point of use — every watt drawn becomes heat in your room, in every unit from every brand. So a heater cannot convert electricity into heat more efficiently than another one. What a modulating heater genuinely can do is draw fewer watts when the room needs less, which uses less energy over an evening in exactly the way a thermostat does. That is a real and useful behavior. It is not an efficiency advantage in the sense the phrase usually implies, and any brand's two-stage 750/1500 W switch achieves something similar by hand.

What it costs to run, either way

What a 1,500 watt electric fireplace costs to run at 18.34 cents per kilowatt-hour
UsageHoursHeat on (1,500 W)Flame only (~100 W)
One evening4$1.10$0.07
A week of evenings28$7.70$0.51
A month, 4 hrs a night120$33.01$2.20
A 90-day winter, 4 hrs a night360$99.04$6.60
Per hour127.5¢1.8¢
At 120 V and 1,500 W — Sideline, Sideline Elite and IgniteXL on a standard outlet. Computed as (watts ÷ 1000) × rate, at 18.34¢/kWh — the US residential average from EIA Electric Power Monthly, Table 5.3 (June 2026), released 2026-08-26. Your rate is on your own bill — put it into the calculator. The flame-only column assumes a conservative 100 W for the LED assembly with the heater switched off.

Identical across both brands: about 27.5 cents an hour on full heat, roughly $99 across a 90-day winter at four hours a night. Brand has no effect on running cost, because the constraint is the circuit.

Two footnotes. The Prism at 1,230 W runs slightly cheaper in exact proportion to its slightly lower output — about 22.6 cents an hour. And the IgniteXL on 240 V at 2,500 W costs about 45.9 cents an hour, because more heat costs more money; there is no free lunch in the voltage upgrade, only a higher ceiling.

#1 · The only route to more than 5,118 BTU

Dimplex IgniteXL 50" Linear Fireplace (XLF50)

The one linear unit here that can exceed the plug-in ceiling — 8,530 BTU on 240 V — plus a 5-year warranty with in-home service.

This is Dimplex's answer to the Sideline and it wins the head-to-head on two sourced numbers. Dimplex publishes 120 V or 240 V operation at 1,500 W or 2,500 W, giving 5,118 BTU/hr or 8,530 BTU/hr. No Touchstone unit at any width offers a 240 V path, so this is the only way to get meaningfully more heat out of a linear fireplace.

The second number is the warranty: five years covering parts and in-home service, against Touchstone's published one year. On a unit that gets framed into a wall, in-home service is worth more than it sounds — the alternative is pulling a recessed fireplace out and shipping it.

Published dimensions are 51 1/2 by 16 1/2 by 5 7/8 inches at 73.96 pounds, built to sit flush in 2x6 framing, with the Comfort$aver ceramic heater. Two honest cons: the 8,530 BTU figure requires a 240 V hardwired supply with an electrician and usually a permit — on an ordinary outlet you get the same 5,118 BTU as everything else — and at 5 7/8 inches it will not go into a 2x4 wall.

What it does not do: The 8,530 BTU figure needs a 240 V hardwired supply — an electrician, a dedicated circuit and usually a permit. On an ordinary 120 V outlet it delivers the same 5,118 BTU as everything else. At 5 7/8 in it also will not fit a 2x4 wall.

Published specs

Dimensions:
51 1/2 in W x 16 1/2 in H x 5 7/8 in D
Weight:
73.96 lb
Electrical:
120 V or 240 V — 1,500 W or 2,500 W
Heat output:
5,118 BTU/hr at 120 V; 8,530 BTU/hr at 240 V
Coverage:
Rated by the manufacturer for up to 1,000 sq ft
Framing:
Built to fit flush into 2x6 framing
Heater:
Comfort$aver ceramic, modulating fan speed and wattage
Warranty:
5 years, parts and in-home service
Sizes in the line:
50, 60, 74 and 100 in

What it costs to run

  • 27.5¢/hr on full heat
  • $99.04 across a 90-day winter at 4 hrs a night
  • 5,118 BTU/hr · 12.5 A on a 120 V circuit

Computed at 18.34¢/kWh (EIA, June 2026). Your rate will differ — work out your own.

Check price on Amazon →

#ad We earn a commission on this link at no cost to you. How this is funded. Price shown on the retailer's page.

Specs from: Dimplex IgniteXL XLF50 product page — full published specification; Dimplex — five-year IgniteXL warranty covering parts and in-home service.

#2 · The value pick in the collision zone

Touchstone The Sideline 50

The reference 50-inch linear unit, thinner than either Dimplex, from a company that makes nothing else. One-year warranty is the catch.

Touchstone's Sideline 50 is the model most linear fireplaces get compared against, and against the Dimplex pair it wins on depth and on range. At 5 1/2 inches it is the thinnest of the three 50-inch units here, and the Sideline range runs 36 to 84 inches with Elite and Elite Pro tiers plus a three-sided Infinity Pro line — depth of range that only exists at a specialist.

Same 1,500 W ceiling as any plug-in unit: about 5,118 BTU per hour and 27.5 cents an hour to run.

Two cons, and the second is the real one. It is 120 V only, so there is no path to more heat if the room turns out to need it. And Touchstone publishes a one-year standard warranty with a two-year extension sold separately — against Dimplex's five years included. On a recessed unit that is a genuine difference in what you are buying.

What it does not do: Recessing needs a framed cavity. Surface-mounting it works but leaves the unit standing proud of the wall, which reads very differently in a small room.

Published specs

Width:
50 in
Form:
Recessed or wall-mounted linear unit
Line:
The volume seller of the Sideline range

What it costs to run

  • 27.5¢/hr on full heat
  • $99.04 across a 90-day winter at 4 hrs a night
  • 5,118 BTU/hr · 12.5 A on a 120 V circuit

Computed at 18.34¢/kWh (EIA, June 2026). Your rate will differ — work out your own.

Check price on Amazon →

#ad We earn a commission on this link at no cost to you. How this is funded. Price shown on the retailer's page.

Specs from: Touchstone electric fireplaces collection — The Sideline 50.

#3 · Presentation, if depth is already solved

Touchstone Sideline Elite 50

Touchstone's frameless front. The best-looking of the three at this width, and still the same 1,500 W and the same one-year warranty.

Where Dimplex wins on electrical spec, Touchstone answers on presentation. The Elite removes the bezel, and on a linear unit the frame is the single strongest cue telling your eye it is looking at an appliance rather than an opening.

It sits above the standard Sideline 50 and below the Elite Pro, at the same 50-inch width.

The cons are inherited wholesale from the standard model: 120 V only with no 240 V path, a one-year warranty, and the identical 1,500 W heater as the cheaper Sideline 50. Everything the extra money buys is on the front of the unit — which is a legitimate purchase, and not a thermal one.

What it does not do: The heater is the same 1,500 W ceiling as the cheaper Sideline 50. The extra money buys the glass front and the flame presentation, not warmth.

Published specs

Width:
50 in
Form:
Recessed, frameless glass front
Position in line:
Above The Sideline 50, below the Elite Pro

What it costs to run

  • 27.5¢/hr on full heat
  • $99.04 across a 90-day winter at 4 hrs a night
  • 5,118 BTU/hr · 12.5 A on a 120 V circuit

Computed at 18.34¢/kWh (EIA, June 2026). Your rate will differ — work out your own.

Check price on Amazon →

#ad We earn a commission on this link at no cost to you. How this is funded. Price shown on the retailer's page.

Specs from: Touchstone electric fireplaces collection — Sideline Elite 50.

#4 · Where Touchstone has no answer at all

Dimplex Opti-Myst Revive 25" Water Vapor Fireplace

Ultrasonic mist flame. Touchstone does not make anything comparable, and nor does anyone else.

Outside the linear collision zone the two brands stop competing, and this is the clearest example. Dimplex holds the Opti-Myst patents, and ultrasonic water-vapor flame is the only mechanism in the category producing a flame with real three-dimensional volume rather than a lit surface.

Dimplex publishes 120 V and 1,250 W for the Revive 25, hardwired or on a compatible cord.

The cons are large and Dimplex states them plainly, which is to their credit: the flame effect produces no heat at all, and it needs a water reservoir refilled by hand. If you want warmth this is the wrong product entirely — the full picture is on water vapor fireplaces.

What it does not do: No heat from the flame effect at all, and it needs a water reservoir refilled. If you want warmth, this is the wrong product and no amount of enthusiasm changes that.

Published specs

Electrical:
120 V, 1,250 W
Width:
25 in
Flame:
Ultrasonic water mist from ordinary tap water, lit by LEDs
Heat:
The flame effect produces NO heat. Heaters are a separate option on some models
Install:
Hardwired, or a compatible 120 V power cord

What it costs to run

No heater. The flame effect alone draws far less than a heating unit — see what these cost to run.

Computed at 18.34¢/kWh (EIA, June 2026). Your rate will differ — work out your own.

Check price on Dimplex →

#ad Dimplex is not a program we have joined, so we earn nothing here. How this is funded. Price shown on the retailer's page.

Specs from: Dimplex Optimyst water vapor fireplaces — how the mist flame works; Dimplex Opti-Myst Revive 25 in — 120 V, 1,250 W.

#5 · Where Dimplex has no answer

Touchstone Chesmont Black 50 (3-Sided)

A wall-mounted three-sided unit. Dimplex's three-sided options are built-in; this one hangs on a wall.

The reverse case. Touchstone lists the Chesmont as a wall-mount three-sided unit with zero-clearance installation and a finished mantel — you hang it and plug it in. For a corner or peninsula where framing an opening is not on the table, that combination is genuinely hard to find elsewhere.

750 W and 1,500 W settings, a 400 square foot supplemental rating, tempered glass on three faces, WiFi with Alexa and Google, in black (80034) and white (80033).

Cons: three-sided glass only earns its money where the side panes are visible, so against a flat wall you are paying for glass nobody looks through. And the heater is the same 1,500 W as a flat unit at a fraction of the price — the upgrade is geometric, not thermal. More on corner electric fireplaces.

What it does not do: Three-sided glass needs a corner or a peninsula wall to make sense. Against a flat wall you pay for two panes nobody ever sees.

Published specs

Width:
50 in
Form:
Three-sided wall-mount — glass on the front and both ends
Why it matters:
Three-sided glass is the cheapest fix for the off-axis flatness that gives LED units away

What it costs to run

  • 27.5¢/hr on full heat
  • $99.04 across a 90-day winter at 4 hrs a night
  • 5,118 BTU/hr · 12.5 A on a 120 V circuit

Computed at 18.34¢/kWh (EIA, June 2026). Your rate will differ — work out your own.

Check price on Touchstone Home Products →

#ad Touchstone Home Products is not a program we have joined, so we earn nothing here. How this is funded. Price shown on the retailer's page.

Specs from: Touchstone electric fireplaces collection — Chesmont Black 50.

Skip this one

Dimplex Prism 50" Linear Fireplace (BLF5051)

1,230 W and 4,197 BTU — about 18% below the class ceiling — in the thickest unit here, on a 2-year warranty. The older Dimplex series.

This is the one to avoid in this matchup, and it is a Dimplex product, which is worth saying plainly on a page where Dimplex otherwise wins. Published specs are 50 by 19 1/2 by 7 inches at 75 pounds, 120 V, 1,230 W, 4,197 BTU per hour, 10.5 amps, 400 square feet, with an acrylic ice fuel bed and a two-year warranty.

Read the wattage row twice. At 1,230 W this is genuinely below the 1,500 W ceiling that every other linear unit on this page reaches — roughly 18% less heat, and the third unit in our catalog where the number is not the class standard. It is also the deepest at 7 inches, which is worse than both alternatives for a flush install.

None of that makes it a bad fireplace; the acrylic ice bed is attractive and it mounts three ways. But it is the older Prism series sitting alongside the newer IgniteXL, and at the same nominal width the IgniteXL is thinner, more powerful, better warranted and has a 240 V path. If you are choosing between Dimplex linear units, choose the other one.

What it does not do: 1,230 W and 4,197 BTU/hr put it roughly 18% below the 1,500 W class ceiling — genuinely less heat than most units at this width. At 7 in deep it is also the thickest linear unit in our catalog, and it is the older Prism series rather than the current IgniteXL.

Published specs

Dimensions:
50 in W x 19 1/2 in H x 7 in D
Weight:
75 lb
Electrical:
120 V, 1,230 W, 10.5 A
Heat output:
4,197 BTU/hr
Coverage:
Rated by the manufacturer for up to 400 sq ft
Fuel bed:
Acrylic ice embers
Mounting:
Fully recessed, partially recessed or surface mount
Warranty:
2 years

What it costs to run

  • 22.6¢/hr on full heat
  • $81.21 across a 90-day winter at 4 hrs a night
  • 4,197 BTU/hr · 10.3 A on a 120 V circuit

Computed at 18.34¢/kWh (EIA, June 2026). Your rate will differ — work out your own.

Check price on Amazon →

#ad We earn a commission on this link at no cost to you. How this is funded. Price shown on the retailer's page.

Specs from: Dimplex Prism series (BLF5051) sell sheet; Retailer listing — dimensions, weight, 120 V / 1,230 W / 4,197 BTU, 2-year warranty.

Choosing in one minute

  • You need more than 5,118 BTU from a linear unit → Dimplex IgniteXL, hardwired at 240 V. Touchstone has no equivalent.
  • You want the thinnest possible flush install → Touchstone Sideline, at 5 1/2 inches.
  • The install is permanent and you want it covered → Dimplex, for the five-year warranty with in-home service.
  • You want a frameless front → Touchstone Sideline Elite. The best-looking of the three at this width.
  • You want a narrow linear unit under 45 inches → Touchstone. Dimplex barely serves this end.
  • You want a mist flame, a built-in firebox or a drop-in log set → Dimplex, because Touchstone does not make one.
  • You want a wall-hung three-sided corner unit → Touchstone Chesmont, because Dimplex's three-sided options are built-in.

What we did not do

We have not tested either brand's fireplaces. We do not own them, we have no showroom, and we have not run a meter on anything. Every figure above was read off the manufacturer's own product page, sell sheet or warranty page and is linked in Sources, and availability was checked before each unit was included. Where a figure is not published — Touchstone does not list a weight on its collection pages — we have left the cell empty rather than estimating one. How we pick sets out the method in full.

Questions people actually ask

Is Dimplex better than Touchstone?

In the one place they compete — 50 to 60 inch linear wall units — Dimplex wins on the two specifications that matter most: a 240 V option producing 8,530 BTU per hour where Touchstone is capped at 5,118, and a five-year warranty with in-home service against Touchstone's one year. Touchstone wins on depth (5 1/2 in versus 5 7/8) and on range breadth at the narrow end.

Which brand makes more heat?

Dimplex, but only via the IgniteXL hardwired at 240 V, where it produces 8,530 BTU per hour. On an ordinary 120 V outlet both brands are capped at the same 1,500 W and about 5,118 BTU per hour. The Dimplex Prism is actually below that at 1,230 W and 4,197 BTU.

Does Touchstone or Dimplex have a better warranty?

Dimplex, clearly. Touchstone publishes a one-year standard warranty with a two-year extension sold separately. Dimplex publishes five years on the IgniteXL covering parts and in-home service, and two years on the Prism. In-home service matters on a unit that gets framed into a wall.

Which is thinner for a recessed install?

Touchstone, narrowly. The Sideline 50 is 5 1/2 inches against the IgniteXL's 5 7/8 and the Prism's 7. In practice the first two behave similarly against a 2x6 wall's 5.5-inch cavity — the Sideline sits flush, the IgniteXL a fraction proud. Neither fits a 2x4 wall.

Do Dimplex and Touchstone make the same kinds of fireplace?

Mostly not. They overlap on linear wall units and almost nowhere else. Dimplex makes water-vapor units, built-in fireboxes and drop-in log sets that Touchstone has no equivalent for; Touchstone makes wall-mounted three-sided units and a much deeper range of narrow linear sizes.

Is the Comfort$aver heater more efficient?

It modulates fan speed and wattage, which uses less energy when the room needs less heat — genuinely useful, and the same principle as a thermostat or a two-stage 750/1500 W switch. It is not a conversion-efficiency advantage: resistive heating is essentially 100% efficient at the point of use in every unit from every brand.

Sources

Every figure on this page is either taken from one of these documents or computed from a formula shown on the page. Nothing here is recalled from memory.

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