Superior DRT40ST 40" See-Through Direct Vent Gas Fireplace
A 37,000 BTU/hr fire shared by two rooms. The Superior DRT40ST is a 40" see-through direct-vent gas fireplace: sealed combustion that draws its air from outside and vents top or rear, with a pan burner, electronic ignition, and tempered glass on both sides. The split oak log set, glowing embers, volcanic stone, the painted black interior and the front faces with their mesh safety-barrier screens are all in the box — there is no separate front to buy. from $6,069.
Choose the DRT40ST if you want one fireplace as the focal point of two spaces — a wall between kitchen and living room, or a room divider — and you can frame the 48-1/2" x 41-1/2" opening it needs, including in a bedroom or a manufactured home: the electronic versions are listed by PFS for both.
It is not right if there is no route to an outside wall or roof — this is a sealed direct-vent firebox and it has to vent out, top or rear, so an interior room with no venting path needs a vent-free or an electric model instead. And if the 48-1/2" framed width is more wall than you have, the 35" DRT35ST puts the same see-through idea in a 39-7/8" frame.
Specifications
Frame an opening 48-1/2" wide by 41-1/2" high (the height may be reduced to 41") by 22-3/4" deep with 5/8" drywall (23" with 1/2"), in minimum 2 x 4 studs. Clearances run 1/2" at the back and sides (0" from the spacers), 0" at the top spacers and floor, and 64" from the bottom of the unit to the ceiling; a combustible mantel is charted from 4" at 2" of depth to 14" at 12". As a divider, a combustible wall may run to any length on one side only — the opposite wall stops within 6" of the front edge. It vents on 4.5"/7.5" Secure Vent rigid, Secure Flex, or the approved Z-FLEX GA alternate. Listed by PFS to ANSI Z21.88, report F14-171, for elevations to 4,500 ft.
How the DRT40ST compares to the DRT35ST
Superior's other traditional see-through is the 35" DRT35ST at from $5,299 — the louvered Pro Series firebox, rated 30,000 BTU/hr in a 39-7/8"-wide frame. This 40" is the louverless Custom Series version: a cleaner face, a 37,000 BTU/hr pan burner, and the largest glass of the pair for a bigger two-room presence — from $6,069.
Features
- A see-through direct-vent firebox — one fire as the focal point of two rooms, with tempered glass and mesh safety-barrier screens on both sides
- 37,000 BTU/hr pan burner on natural gas — the larger of Superior's two traditional see-throughs
- Sealed combustion, vented top or rear on 4.5"/7.5" Secure Vent rigid, Secure Flex, or the approved Z-FLEX GA alternate
- Listed by PFS for bedrooms and manufactured homes
- Deluxe split oak log set, glowing embers and volcanic stone over a painted black interior, with the Buff Rustic liner as the upgrade
- No hearth extension required — 0" floor clearance, and the manual rates a TV utility shelf above it
Answers to common questions
What’s included, what’s required, and what’s optional?
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Included in the box: 37,000 BTU/hr (natural gas); Electronic intermittent pilot ignition; Tempered glass; Deluxe split oak log set; Glowing ember, volcanic stone and vermiculite media; Painted black interior liner; Front face assemblies with mesh safety-barrier screens, and hoods for both sides; ANSI Z21.88 certified (PFS listed); 20-year limited warranty.
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Required to complete the installation, purchased separately: Venting - Secure Vent, Secure Flex or Z-FLEX GA 4.5"/7.5" pipe and a termination sized for your run; Gas line and 120 VAC household power - run by a qualified installer; the electronic ignition requires household power.
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Optional: The Buff Rustic liner kit (an appearance upgrade), a blower kit, and a remote, wall switch or timer — the fireplace operates fully without them.
Will it work if the power goes out?
Plan for it to be off during an outage — the DRT40ST is electronic ignition only, the manual requires external electrical power to operate it, and it lists no battery-backup provision for the ignition. If running through outages matters to you, look at Superior's millivolt models such as the BRT40ST see-through, which light with a piezo igniter and use no household electricity.
How do I vent it?
Top or rear, on the 4-1/2" inner / 7-1/2" outer components the appliance is listed with — Superior's Secure Vent rigid pipe, Secure Flex, or the approved Z-FLEX Model GA alternate from Flexmaster. The square SV4.5HT-2 horizontal termination and the SV4.5CGV-1 vertical cap are the standard terminations. Send us your wall build-up and we will size the run with you.
Can I put a TV on a shelf above it?
Yes — the manual describes these fireplaces as uniquely suited to a utility shelf directly above, commonly used for television sets, and charts the minimum combustible shelf heights: 41-1/8" from the base of the appliance with rear venting straight out the back, or 53-7/8" (Secure Vent) to 55-5/8" (Secure Flex) with top venting and one 90-degree elbow. Do not insulate the space above the appliance, and remember anything above it is exposed to elevated temperatures.
Where can it go — bedrooms, mobile homes, two rooms?
Almost anywhere with a venting path: the electronic versions are listed by PFS for bedrooms and manufactured homes, and Massachusetts adds its own licensed-installer and CO-detector requirements. As a room divider, a combustible wall may run to any length on one side only, with the opposite wall stopping within 6" of the front edge; no hearth extension is required, and on carpet or vinyl it sits on a metal or wood barrier covering the bottom.
Can I run it on propane?
Yes — by choosing the propane option on this page, which adds Superior's certified electronic conversion kit (GCK-40STPFENP, the manual's Catalog No. F2316) to the order. The fireplace itself ships built for natural gas, and a qualified service agency installs the kit in the field.
How does the warranty work if something goes wrong?
Superior warrants the fireplace, 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.
