Superior DRL6048 48" See-Through Linear Direct Vent Gas Fireplace
One 48" linear firebox, open to two rooms — this is the Superior DRL6048 in its factory See-Thru configuration, with the Indoor See-Thru Conversion Kit included in every variant. It runs 35,000 BTU/hr high / 23,500 low on natural gas at 62.5% P4 efficiency over the standard Platinum crushed glass, vents vertically through the roof or horizontally through an outside wall on 4.5"/7.5" Secure Vent components, and starts at from $9,762, with a 20-year limited warranty on the body, firebox and barrier.
Choose this build if the fireplace sits in a wall between two rooms — both sides get the full 48" flame view over the same media bed, the See-Thru kit arrives with the firebox instead of being chased down later, and the porcelain liner, floor lighting and hand-held remote are already standard.
It is not right if you want fan-forced heat: Superior requires the factory blower to be removed or disabled in the See-Thru configuration, so a wall that needs a blower should hold the one-sided Superior DRL6048 instead. And if the second side will face a patio or any outdoor space, this indoor-only kit is the wrong conversion — the DRL6048 with the Indoor/Outdoor See-Thru kit (OSTK-LIN48) is the build for that wall.
Specifications
Frame a 55-5/8" wide opening in the dividing wall (See-Thru framing), with 84" minimum from the appliance base to the ceiling, and do not insulate the space between the fireplace and the area above it. Keep the back 3/4" from the wrapper and the sides 1/2" (0" to the spacers), and keep furniture and other combustibles 36" from the front of the viewing area(s) — on this see-through build, that applies on both sides. A combustible mantel follows the manual's depth chart (4" to 12" of depth), and combustible side walls may close to 8-1/4" if they project no more than 12". Listed by PFS TECO to ANSI Z21.88, report F22-797, and rated for standard orifices to 4,500 ft.
How the DRL6048 see-through compares to the other DRL6000 sizes — and the one-sided build
The DRL6000 see-through builds share the Signature Series standard kit — Platinum media, porcelain liner, floor lighting and remote; they differ in width and output. This 48" runs 35,000 BTU/hr high on natural gas at from $9,762, against the 60" at from $13,404, the 72" at from $15,647 and the 84" at from $19,239. The same firebox in its factory one-sided form — the Superior DRL6048 at from $7,179 — skips the kit cost and keeps its blower operable; this page is the two-room build of the two.
Features
- The see-through build — the DRL6048 firebox and Superior's Indoor See-Thru Conversion Kit together, one fireplace open to two rooms
- Two 5 lb bags of Platinum reflective crushed glass ship in the carton — the standard firebox floor, visible from both sides
- 35,000 BTU/hr high / 23,500 low on natural gas at 62.5% P4 efficiency
- Sealed direct vent on 4.5"/7.5" Secure Vent rigid, Secure Flex or Z-FLEX GA components — vertical through the roof or horizontal through an outside wall
- SIT Proflame II electronic ignition with a full-function remote; four AA batteries keep it lighting through a power outage
- Black porcelain liner interior and factory floor lighting, standard
Answers to common questions
What’s included, what’s required, and what’s optional?
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Included in the box: The 48" Indoor See-Thru Conversion Kit (STK-DVLIN48), with the two-sided application's fireboard and See-Thru hardware; Two 5 lb bags of Platinum reflective glass media, installed over the burner and media tray; The black porcelain liner interior, built onto the firebox at the factory; Factory floor lighting; Proflame II full-function hand-held remote (batteries included); 35,000 BTU/hr high / 23,500 low (natural gas); 31,000 / 25,500 (propane, conversion kit); Electronic intermittent pilot ignition (SIT Proflame II); Battery backup — four AA batteries included; Ceramic glass; PFS TECO listed to ANSI Z21.88 (report F22-797); 20-year limited warranty.
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Required to complete the installation, purchased separately: Venting - Secure Vent, Secure Flex or Z-FLEX Model GA 4.5"/7.5" pipe and a termination sized for your run; Gas Line and Electrical - a gas supply line and an unswitched 120 VAC, 60 Hz circuit, run by a qualified installer; this is electronic ignition only, so power is required at all times.
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Optional: A colored or textured floor media upgrade — two bags of crushed glass in another color, a 25-piece rock kit, a driftwood-and-rock kit, or a driftwood log set — over the standard Platinum crushed glass; A black Linear Trim Kit, a HeatFlo heat-management kit, and a Power Vent kit — the fireplace operates fully without them.
Does the see-through configuration keep the blower?
No — Superior requires the factory blower to be removed or disabled whenever the Indoor See-Thru kit is installed, on every variant of this build. The fireplace heats both rooms by radiant heat and natural convection instead, and the HeatFlo convection kit is the manual's accessory for redirecting warm air higher on the wall. If fan-forced heat is a requirement, the one-sided DRL6048 keeps its blower.
Will it work if the power goes out?
Yes — every variant of this build has battery backup built in. Four AA batteries in the Proflame II battery holder take over during a line-power interruption: the unit sparks at the pilot, lights, and operates normally. The floor lighting stays off until line power returns. Superior recommends installing fresh batteries before each burn season so the switchover is automatic.
How do I vent it, and is the vent in the box?
The vent is sold separately, and the run is 4.5" inner / 7.5" outer pipe on the manual's approved systems only — Secure Vent rigid, Secure Flex, or Z-FLEX Model GA — with no other manufacturer's components permitted. The flue collar is on top: run it vertically through the roof or elbow it horizontally through an outside wall, and for a down-and-out run the Power Vent kit (PVK-PF2-SV4.5) is the route. Send us your wall build-up and we will size the run with you.
Can I mount a TV above it?
Yes, on either side, with the manual's clearances — its TV framing tables cover the One Sided and See-Thru applications alike. Keep the TV at least 12" above the fireplace opening on a flush wall, or 18" above it in a recessed wall pocket, and note the recessed pocket itself is only available with the HeatFlo kit (maximum pocket depth 3-1/2"). Superior gives these TV clearances as guidance only, so check your TV maker's own temperature limits too.
Can it go in a bedroom or a manufactured home?
Yes to both — the DRL6048 is listed for installation in bedrooms, aftermarket mobile homes and manufactured homes (USA, where not prohibited by local codes; grounded to the chassis in a manufactured home). Wherever the wall is, keep furniture and other combustibles at least 36" from the front of the viewing areas — both sides on this build — and give it 84" from the appliance base to the ceiling.
Do I have to buy a media upgrade, and what about the glass liner?
No purchase needed — the firebox is complete as it ships, with the Platinum crushed glass over the burner and the black porcelain liner fitted at the factory. The media upgrades only change the look: two bags of Reflective Black or Reflective Blue crushed glass, the 25-piece River Rock kit, the Driftwood Pieces and Rock kit, or the Driftwood Log Set. The Black Reflective Glass liner sold for the one-sided DRL6048 is not offered here at all — Superior states the glass panel kits are not compatible with the See-Thru kit, so the porcelain interior is the interior.
How does the warranty work if something goes wrong?
Superior warrants the DRL6048 — 20 years limited on the body, firebox and barrier, one year on the burner and gas components — and The Torch Guys handles it for you: we register the appliance and, if you ever need to claim, we deal with the manufacturer on your behalf rather than handing you a phone number. Keep your invoice and the model number; we hold the rest on file.
