Superior DRT35ST 35" See-Through Direct Vent Gas Fireplace
One fire shared by two rooms. The Superior DRT35ST is a 35" see-through direct-vent gas fireplace: sealed combustion that draws its air from outside and vents top or rear, 30,000 BTU/hr on natural gas at 74.8% AFUE, with electronic ignition and tempered glass on both sides. The log set, glowing embers, 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 $5,299.
Choose the DRT35ST if you want one fireplace serving two spaces — a wall between living room and den, or a room divider — in a compact 39-7/8" x 37-1/4" framed opening, including in a bedroom or a manufactured home: the electronic models 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 you only want the fire visible from one side, Superior's single-sided DRT3035 gives you a 35" traditional firebox without the second glass face.
Specifications
Frame an opening 39-7/8" wide by 37-1/4" high by 20-3/4" deep with 5/8" drywall (21" with 1/2"), in minimum 2 x 4 studs. Clearances run 1/2" at the sides (0" from the spacers), 5" above the top, 0" at the floor and 72" from the bottom of the unit to the ceiling; an unprotected side wall keeps 5", and a combustible mantel is charted from 9" at 2" of depth to 19" at 12". 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 F14-165, for elevations to 4,500 ft.
How the DRT35ST compares to the DRT40ST
Superior's other traditional see-through is the 40" DRT40ST at from $6,069 — the louverless Custom Series firebox, rated 37,000 BTU/hr on natural gas in a 48-1/2"-wide frame. This 35" is the louvered Pro Series version: 30,000 BTU/hr, a 39-7/8" framing width for tighter walls, and the higher 74.8% AFUE rating — from $5,299.
Features
- A see-through direct-vent firebox — one fire shared by two rooms, with tempered glass and mesh safety-barrier screens on both sides
- Sealed combustion, vented top or rear on 4.5"/7.5" Secure Vent rigid, Secure Flex, or the approved Z-FLEX GA alternate
- 30,000 BTU/hr on natural gas at 74.8% AFUE
- Listed by PFS for bedrooms and manufactured or mobile homes
- Deluxe split-oak log set and glowing embers over a painted black interior, with a buff brick 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: 30,000 BTU/hr (natural gas); Electronic intermittent pilot ignition; Tempered glass; Deluxe split-oak log set; Glowing ember media; Painted black interior liner; Front face assemblies with mesh safety-barrier screens, and hoods for both sides; On/off rocker switch with wire harness; 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 Brick 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 DRT35ST 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 4.5" inner / 7.5" 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 shelf heights: 37-1/4" from the base of the appliance with side venting straight out the back, or 49-1/2" (Secure Vent) to 51-1/4" (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 models are listed by PFS for bedrooms and for manufactured or mobile homes, and Massachusetts adds its own licensed-installer and CO-detector requirements. As a room divider, one end may sit flush with a perpendicular wall, but the wall at the other end must not extend beyond 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-35STENP) to the order. The fireplace itself ships built for natural gas; a qualified service agency installs the kit in the field, and on propane the rating is 28,000 BTU/hr against 30,000 on natural gas.
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.
