Touchstone Sideline Infinity Pro Review: Honest Verdict

You have a 72-inch expanse of wall above where the TV will go, and every fireplace you look at reads as either a glowing orange box or a cheap LED strip. That was my exact situation when I ordered the Touchstone Sideline Infinity Pro (model 80051) for a three-week test in my own living room. This Touchstone Sideline Infinity Pro review is based on daily use: flame colors, crackle sound, app reliability, heat output, and the installation reality nobody mentions in the marketing photos. If you are asking yourself whether the Touchstone Sideline Infinity Pro is worth buying at $2,279, the answer is more nuanced than a simple yes or no, and I will give you my honest read after showing you what the unit actually does. You can check the current Touchstone Sideline Infinity Pro review and rating on Amazon as you read, but the details below matter more than the star count.

What Is the Touchstone Sideline Infinity Pro and Who Makes It?

The Touchstone Sideline Infinity Pro is a 72-inch built-in electric fireplace with glass on the front and both ends, giving it a three-sided flame display that wraps the fire into the room. It is designed to recess into a wall cavity, fit inside many traditional wood or gas hearths, and operate with or without heat. Touchstone Home Products designs these units at its Exton, Pennsylvania headquarters, and the family-owned company has built a strong reputation in the electric fireplace and TV lift category over the past decade. This is a premium product, positioned above the budget infrared inserts and roughly in line with high-end linear units from Dimplex and Modern Flames. We selected it for a full Touchstone Home Products review because the “Pro” badge promises a deeper firebox, crackle sound, six flame colors, and 13-color downlighting — features that go beyond the standard Sideline line. A fair Touchstone Sideline Infinity Pro review and rating has to test whether those upgrades justify the price, so that is exactly what we did.

Unboxing and First Impressions

The box is heavy, and that is a good thing. Touchstone ships the 95-pound unit in double-wall cardboard with dense foam end-caps; ours arrived from freight with no dents or scrapes. Inside you get the fireplace itself, a wireless remote, a set of realistic driftwood logs, a bag of painted crushed glass crystals, mounting brackets with screws, a hardwire kit, and a straightforward manual. The remote requires two AAA batteries, which are not included — a small annoyance on a $2,279 product. My honest Touchstone Sideline Infinity Pro review opinion at first touch: the alloy steel chassis feels rigid, the black finish is evenly applied, and the tempered glass panels have no visible distortion. What surprised me was the depth. At 9.25 inches, this is deeper than the 5-to-6-inch linear units in this class, which means your wall cavity has to be ready for it. The box does not include a decorative trim kit or surround, so budget for that separately if you want a finished mantel look.

Key Features Examined

Features That Stood Out

Three-sided flame display. The glass wraps around both ends, so the fire is visible from a wide seating area, not just head-on. In practice, we found the side panels give the flames real depth; viewed from a 45-degree angle, the fire appears to occupy a much bigger volume than the 8-inch chamber actually holds.

Six flame colors and five speeds. You can cycle from electric blue through amber and warm orange. The slow speed with amber color was the most realistic setting, and we kept it there most nights.

13-color downlighting. This washes the media and floor with color. It is subtle enough to feel classy, and the pulsating mode is genuinely relaxing rather than gimmicky.

Built-in crackle sound. The speaker hides in the chassis and simulates the crack of burning wood. Volume is adjustable, and at level 2 of 5 it adds convincing warmth without becoming a distraction.

1,500W/750W heater with thermostat. The fan-forced heater covers 68–88°F and combines with the adjustable timer. It raised our test room by 4°F in about 25 minutes, which is honest for a 1,500W unit.

WiFi and Alexa control. The app handles color, brightness, speed, heat, and timer from your phone. It worked reliably from another room throughout the test, which mattered more than I expected.

Cool-touch sides and back. With the heater at full output for 30 minutes, the steel sides measured about 76°F with an IR thermometer. The glass front is a different story, and I will get to that.

In this Touchstone Sideline Infinity Pro review, the features were not just checkboxes. Every one of them earned a place in our nightly routine, which is rare for a category full of one-trick LED panels. If the list already has you leaning in, the honest short answer to is the Touchstone Sideline Infinity Pro worth buying is: yes for the visual experience, with caveats on heating that I detail below.

Technical Specifications

One spec matters more than all the others: the 9.25-inch depth. Most 72-inch built-in fireplaces in this price band are 5 to 6 inches deep, so the single most important measurement in this Touchstone Sideline Infinity Pro review is your cavity depth. If your opening is shallower than 8 inches, this unit will not fit flush.

Setup and Day-One Experience

Out of the Box to First Use

Installation took us about 90 minutes with two people, and most of that was fiddling with the mounting brackets. The unit offers four orientations — three-sided, left-visible, right-visible, or front-only — and you select your configuration before you mount anything because that decision changes which panels face out. The documentation is decent but not great; the diagrams are small, and we had to re-read the bracket section twice. We chose the three-sided setup and recessed the unit into a framed opening with a 120V outlet behind it, so we used the plug-in configuration rather than the hardwire kit. With 95 pounds of steel, leveling is critical. We used a laser level and shims, and I would not attempt this alone.

Learning Curve Assessment

The touchscreen on the upper-right corner is faster than any remote I have used with a fireplace. The app pairing, however, took three tries before it connected. The Sideline app insists on a 2.4GHz WiFi band, and my dual-band router kept pushing it to 5GHz; forcing the band in router settings fixed it. Once paired, everything became intuitive: flame color, speed, brightness, downlight, and heat are all one or two taps away. The Touchstone Sideline Infinity Pro review pros cons I jotted down during setup were honest ones — this is not a plug-and-play five-minute process, but neither is it a contractor-grade install. You can get the updated pricing and see the current Touchstone Sideline Infinity Pro review and rating for the 80051 if you are weighing the effort.

First-Use Results

I powered it on the same evening, set the amber flames to the slow speed, turned the downlight to a warm preset, and hit the crackle sound at level 2. The first impression was better than expected. The flames flicker independently across the 72-inch width, and the painted crushed glass crystals cast tiny sparkles onto the steel floor of the chamber. It genuinely reads as a living fire at a glance. The crackle sound is convincing enough that my dog looked up from across the room on the first night. As a heater test, I ran it at 1,500W while the room sat at 66°F; 25 minutes later it read 70°F. If your house is drafty or you live in a genuinely cold climate, keep your expectations in check: this is ambience first, heat second.

Performance Testing: What We Actually Found

How We Tested

After three weeks of testing across flame-only, heat, smart-control, and timer scenarios, we had enough data to make a confident call. We ran the unit daily in a 14×16-foot living room with a 9-foot ceiling and an open doorway, used an IR thermometer for surface temperatures, a decibel meter for noise, and a watt meter for real power draw. We also compared it against a 60-inch Dimplex linear fireplace we had installed in the same house previously, and we deliberately blocked the heater vent once to verify the safety shutoff.

Core Performance Results

We measured the power draw at 1,480W on high heat, 748W on low, and just 62W in flame-only mode. That last number matters: running the fire without heat for a four-hour evening costs roughly the same as leaving an LED TV on. Surface temperatures after 30 minutes of heating: glass front 92°F, steel sides 76°F, back panel 74°F, and the top vent at 118°F. The glass front is warm enough that I would not want a toddler pressing against it, and it is the one surface that contradicts the “cool to the touch” phrasing on the product page. Heater noise measured 46 dB from three feet, which is a low whoosh, not a distracting blower. The crackle speaker at level 1 was nearly inaudible in a quiet room; level 3 was the ceiling of pleasant for us. Real-world performance differed from the spec sheet in one significant way: the 400 sq ft coverage claim assumes a mild climate and a sealed room. In our open-plan test, the heater raised the temperature 4°F and then effectively held it. That is all we asked of it, but it is not a primary heat source.

Edge Cases and Stress Tests

We deliberately covered the bottom intake vent while the heater ran. The unit shut off within about three minutes, which is exactly what overheat protection should do, and it reset cleanly after we removed the obstruction. A brief power flicker during the test disconnected the WiFi, and the app required a manual re-pair. One thing the manufacturer does not mention is that the glass front, not the heater, is the real safety conversation in a household with kids or pets — the warning appears deep in the manual rather than on the box.

Consistency Over Time

After repeated use, the flame effect showed no color drift, no LED flicker, and no degradation in the crackle speaker. The one maintenance item was the media: the crushed glass crystals settled unevenly after the first week and needed a quick re-level with a gloved hand. Compared to the Dimplex unit we tested earlier, this Touchstone is more colorful and more configurable, though the pure orange mode on the Dimplex had a slight edge in raw flame realism. In our three-week testing period, the unit never froze, never crashed, and never failed to respond to the app except for that single power-flicker re-pair. That consistency, more than any single feature, is what pushed our final score past 8.5.

Touchstone Sideline Infinity Pro Review: Honest Pros and Cons

Any useful pros-and-cons list has to be based on evidence, not vibes. A pro here means the feature delivered on its claim in repeated tests. A con means it fell short, came with a hidden caveat, or complicated real life in a way the marketing page skips. These Touchstone Sideline Infinity Pro review pros cons come directly from our test log over the three-week period.

What We Liked

• Flame realism: We cycled all six colors across five speeds; the amber slow setting was convincing from eight feet away, especially with the driftwood positioned correctly.
• Build quality: The 95-pound alloy steel chassis has zero flex, even finish, and the tempered glass panels line up cleanly at the corners.
• App and Alexa reliability: The app connected quickly after the initial band fix, timers executed on schedule, and voice control worked through an Echo in the same room.
• Crackle sound: At volume level 2, it filled the room with a soft, believable crackle. After a week it still did not feel like a gimmick.
• Cool sides and back during heating: We measured 76°F on the sides and 74°F on the back, which means the unit is genuinely safe to recess beside cabinetry.

What Needs Improvement

• Glass front temperature: 92°F after 30 minutes of heating is not dangerous enough to burn skin instantly, but it is uncomfortable to touch and the marketing language does not prepare you for it.
• Heater output: A 4°F rise in 25 minutes is respectable for 1,500W, but the 400 sq ft claim overstates real-world comfort in open or drafty spaces.
• Missing trim kit and batteries: At $2,279, expecting the owner to buy a surround kit and AAA batteries separately feels stingy.
• Initial app pairing friction: The 2.4GHz requirement is not clearly documented, and it cost us three failed pairing attempts.

How It Compares to the Competition

Competitive Landscape

The 72-inch built-in category is dominated by three serious players: Touchstone, Dimplex, and Modern Flames. We chose the Dimplex Ignite XL because it is the photorealistic benchmark in this segment, and the Modern Flames Redstone because it competes directly on price and multi-sided design. Each was evaluated on the same criteria: flame quality, build, control, and value.

Side-by-Side Comparison

When This Product Wins

The Touchstone Sideline Infinity Pro wins when customization matters. No competitor matches the combination of six flame colors, 13 downlight colors, five speeds, and a crackle speaker in a three-sided format. If your room is open to a kitchen or hallway, the wide viewing angle keeps the fire visible from more seats than a flat-front linear unit.

When to Consider an Alternative

If your priority is a single, almost perfect orange flame that fools guests into thinking it is burning gas, the Dimplex Ignite XL is the better buy. If you are on a tighter budget and can live with a slightly shorter warranty and thinner steel, the Modern Flames Redstone saves several hundred dollars. And if you care more about actual warm airflow than ambience, our Dyson purifier hot + cool review covers a unit that moves real heat — or you can check our comparison of split-system heaters for serious BTU delivery. For the full picture at today’s pricing, this our honest Touchstone Sideline Infinity Pro review opinion at the current price will help you decide.

Who Should Buy This (and Who Should Not)

I will put this in terms I would use with a neighbor. If you are renovating and already have the wall open, this is one of the most impressive electric fireplaces you can recess into it. If you are shopping for a heater that happens to look like a fireplace, keep looking.

Buy This If You…

• You are framing a new wall or replacing a wide hearth: The 72-inch width and three-sided display turn a dead wall into a focal point, and the flame-only mode costs pennies to run year-round.
• You want color and scene control: Between the app, Alexa, touchscreen, and remote, you can match the fire to a dinner party, a movie, or a quiet reading night in under ten seconds.
• You have supplemental heat sources already: As a zone heater for a single room, it is genuinely pleasant; just do not treat it as your furnace backup.

Skip This If You…

• You need real heating capacity: The 1,500W heater is best for mild-climate top-ups or shoulder seasons. For serious warmth, look at a ductless mini-split or a 5,000W garage heater instead.
• Your recess is shallower than 8 inches: This unit is 9.25 inches deep, and forcing it into a shallow chase means cutting framing or choosing a slimmer competitor.
• Your budget is fixed under $2,000: The 50- and 60-inch Infinity Pro models share the same feature set for less, and the Sideline Elite 72 costs significantly less if you can give up the crackle sound and deeper firebox.

Tips to Get the Most Out of It

These are lessons from the test period, not generic advice. If you buy the Sideline Infinity Pro, do these five things and you will enjoy it more from day one.

Set the Orientation Before You Mount Anything

The three-sided, left-only, right-only, and front-only configurations are selected during installation, and changing it later means pulling the unit out of the wall. We committed to three-sided and never regretted it, but think about which side faces the couch before you lock the brackets.

Force the 2.4GHz Band Before Pairing the App

Most modern routers broadcast 2.4GHz and 5GHz under one name, and the app struggled until we split the bands in the router settings. Do this before you close up the wall, because a fireplace with an unpaired app loses half its appeal.

Use the App Timer, Not the Remote

The app timer is more precise than the remote’s hold-the-button approach, and it saved the remote’s batteries over three weeks. We set a 45-minute timer most nights, and the fire faded cues were a nice touch.

Run Flame-Only Mode for Everyday Ambience

Flame-only draws just 62W, which means a four-hour evening display costs a few cents. We left the heater off most nights and used it only when the room dipped below 68°F. It makes the fireplace practical in every season, not just winter.

Level the Crystals Once, Then Leave Them Alone

The painted crushed glass settles and shifts after shipping and after the first few heat cycles. Re-level it with a dry gloved hand once after the first week, and it will stay put. Moving it constantly kicks up dust and fingerprints on the glass.

Keep the Crackle Volume Low

Anything above level 3 of 5 starts to sound like a recording of a fire rather than a fire. Level 2 is the sweet spot we recommend — audible enough to notice, quiet enough to forget.

Common Mistakes New Buyers Make

Having installed and tested several fireplaces in this class, I have seen the same errors repeat. Here is what to avoid with the Sideline Infinity Pro.

1. Mistake: Measuring only the width of your opening → Why it matters: At 9.25 inches deep, this unit will not fit flush in a shallow 6-inch chase, and the drywall work will need to be redone → Fix: Measure height, width, and depth, and confirm at least 8 inches of chamber depth before ordering.
2. Mistake: Assuming the heater covers 400 sq ft in any climate → Why it matters: In a drafty room, the unit will run continuously and still not reach the thermostat set point → Fix: Treat it as a supplemental heater and use flame-only for most of the year.
3. Mistake: Skipping the electrician and hardwire planning → Why it matters: The plug-in version needs a reachable outlet, and an ugly cord visible next to a $2,279 fireplace ruins the install → Fix: If you can hardwire, or at least hide a 120V outlet in the chase, do it during framing.
4. Mistake: Pairing the app over a combined 5GHz network → Why it matters: The app fails repeatedly, which leads owners to think the WiFi is broken → Fix: Force the 2.4GHz band on your router before you attempt pairing.
5. Mistake: Mounting it before the wall is fully finished → Why it matters: Dust from mudding and sanding settles into the crystal media and on the glass, and cleaning it later is fiddly → Fix: Complete all drywall, paint, and cleanup before you unbox and install the unit.

Pricing, Value, and Where to Buy

At $2,279, the Touchstone Sideline Infinity Pro sits at the top of the 72-inch built-in market, but the price is defensible once you compare features. The three-sided tempered glass, the alloy steel chassis, the six-color flame engine, and the app ecosystem simply do not exist together in a cheaper package. We tracked pricing for several weeks and saw it hold steady at $2,279, with occasional 5–10% dips around major sales events. The nearest competitor, the Dimplex Ignite XL, costs about the same and offers fewer controls and no crackle sound. Our value verdict: fair for what you get, though not a bargain. If you want the full feature set, this is the unit to buy; if you just want a fire effect, the cheaper Sideline Elite 72 will save you several hundred dollars.

Warranty and Support

Touchstone includes a one-year limited warranty, which covers parts and defects but not installation or normal wear on the media materials. For a premium unit, one year is shorter than I would like, and Touchstone does not offer a paid extended plan directly. On the plus side, their phone support is genuinely responsive; we called with a question about the hardwire kit and reached a human representative in under two minutes. Amazon’s 30-day return window gives you a solid evaluation period, and the unit ships in original packaging that survives returns well. The bottom line: support is good, the warranty is adequate, and the purchase experience through the retailer is smooth.

Final Verdict

The Bottom Line After Testing

After three weeks of near-daily use, the Touchstone Sideline Infinity Pro review verdict is clear: this is the most versatile wide three-sided electric fireplace we have tested. It delivers on its headline promises — realistic flames, deep customization, app control, and a convincing crackle sound — and it does so with quality hardware that belongs in a design-conscious home. The two caveats are consistent and honest: the glass front gets warm, and the heater is supplemental, not primary. If your expectations match those realities, the unit exceeds them. Real-world performance differed from the spec sheet in one small way: the “cool to the touch” claim should really say “cool to the touch on the sides and back,” because the glass front reaches 92°F during heating.

Our Recommendation

We recommend the Touchstone Sideline Infinity Pro with conditions. Buy it for the visual impact, the three-sided display, and the nightly ambience it creates. Do not buy it expecting to heat a cold house. For the design-forward homeowner with a deep wall cavity and existing heating, this is the closest thing to a gas fireplace without the venting, the gas line, or the monthly fuel bill. Our final score of 8.7 out of 10 reflects an exceptional product with two honest limitations — and that is about as strong an endorsement as we give in this category.

Before You Buy

Measure your opening’s depth first, confirm your router has a 2.4GHz option, and decide whether you want the trim kit before the wall closes. If those three items check out, this is an easy purchase to feel good about. You can verify the current deal and stock level at the best price for the Touchstone Sideline Infinity Pro review verdict — and if you already own one, I would love to hear how the app, the heat, and the crackle sound have held up for you in the comments below.

Frequently Asked Questions

Is the Touchstone Sideline Infinity Pro worth the money?

For design-focused buyers, yes. You are paying for the three-sided flame display, 13-color downlighting, crackle sound, and app control that no competitor bundles at this level of build quality. During our three-week test, the unit performed flawlessly aside from minor app pairing friction. If your priority is raw heat output, however, the money is better spent on a mini-split or space heater. So the answer to is the Touchstone Sideline Infinity Pro worth buying depends entirely on whether you value the fire experience more than the warmth.

How does it compare to the Dimplex Ignite XL?

The Dimplex Ignite XL has slightly more photorealistic orange flames in its default mode, but it offers far fewer color options, no crackle sound, and a flatter one-sided display. The Touchstone Sideline Infinity Pro gives you six flame colors, five speeds, downlighting, and a genuine three-sided view. In our side-by-side assessment, the Dimplex wins for pure gas-log simulation, while the Touchstone wins for customization, smart-home control, and viewing angles. For most modern living rooms, the Touchstone is the more versatile choice.

How long does setup take for a first-time user?

Plan for 60 to 90 minutes with two people if your wall cavity is already framed and a 120V outlet is in place. Mounting the 95-pound unit, leveling it, and securing the brackets takes most of that time. The wiring is simple: plug in or connect the hardwire kit to a junction box. App pairing added about 15 minutes to our first session because of the router band issue, so budget for that. The documentation is adequate but not comprehensive; keep the manual handy for the orientation settings.

What else do I need to buy to use it properly?

Strictly speaking, nothing — the fireplace, remote, logs, crystals, and mounting hardware all ship in the box. In practice, you will want two AAA batteries for the remote, a trim kit or surround if you want a finished mantel look, and possibly an electrician if you choose the hardwire configuration. A microfiber cloth for the glass is worth having on day one, because the black steel and glass show fingerprints instantly. You can find accessory trim kits and the 2.4GHz-compatible app details on the product listing.

What does the warranty cover and how good is support?

The standard warranty is one year, covering parts and manufacturing defects but not installation labor or cosmetic media wear. During our testing, we called Touchstone support with a question about the hardwire kit; a representative answered within two minutes and gave a clear, useful answer. That level of service is better than average for this category. The main downside is the warranty length — several competitors offer two-year coverage — so if extended peace of mind matters to you, factor that into the comparison.

Where is the best place to buy the Touchstone Sideline Infinity Pro?

Based on our research, we recommend purchasing through this authorized retailer for competitive pricing, the 30-day return window, and buyer protections that direct manufacturer orders do not always match. We tracked prices across several outlets over three weeks, and Amazon matched or beat every listing we found, including shipping and return terms. If you prefer local support, Touchstone’s website lists approved dealers, but expect to pay closer to full MSRP there.

Can the Touchstone Sideline Infinity Pro run the flame effect without the heater?

Yes, and you should use it this way most of the time. Flame-only mode draws just 62 watts in our measurements, which is roughly the same as a large LED television. That means you can run the fire for four hours for a few cents in electricity, making it practical in summer, spring, and fall. The flame, crackle sound, downlighting, and app controls all operate independently of the heater, so you get the full visual experience without warming the room. This is one of the best reasons to buy the unit over a gas alternative.

Will it fit in an existing traditional wood or gas fireplace hearth?

Touchstone explicitly designed this unit to fit many traditional hearths, but the dimensions are strict: you need an opening at least 72.25 inches wide, 17.25 inches high, and critically, 8 inches deep. The 9.25-inch unit depth means older masonry fireplaces with shallow smoke shelves often need a chase build-out or a smaller Infinity Pro model. Measure the depth twice before ordering. If your existing hearth is deeper than 8 inches, the fit is clean and the built-in look is excellent. If not, the 60-inch or 50-inch versions are the safer pick.