Superior DRL3535 35" Linear Contemporary Direct Vent Gas Fireplace
The Superior DRL3535 is a 35" linear direct vent gas fireplace that comes ready to run: a factory-installed blower with six speeds, floor lighting with six settings and a multi-function remote are all standard. The glass viewing area is 30" wide and 16-3/4" tall, and it comes as the DRL3535TEN for natural gas (18,000 Btu/hr high, 12,000 low) or the DRL3535TEP for propane (16,000 high, 13,000 low).
It is a sealed-combustion unit, so it pulls combustion air from outside and sends exhaust out through the same 4-1/2" x 7-1/2" Superior vent pipe. The electronic IPI/CPI ignition runs on house power with four AA batteries as backup, so the burner keeps running when the power goes out; the blower waits for power to come back. Platinum crushed glass ships in the box, and a 4-3/4" non-combustible fireboard keeps drywall off the parts of the face that run hot.
From there you can change the look with a black porcelain liner, a matte black or stainless surround, reflective black or blue glass, a driftwood log set or river rock. If you don't need the blower, lights and remote, the Superior DRL2035 is the same 35" size without them. The DRL3500 series also comes in 45" (DRL3545) and 55" (DRL3555).
Play video: Superior DRL3500 Direct Vent Gas Fireplace
Key Features
- 30" x 16-3/4" glass viewing area on a 35-1/2" wide fireplace
- Natural gas: 18,000 to 12,000 Btu/hr; propane: 16,000 to 13,000 Btu/hr
- Factory-installed blower with six speed settings
- Floor lighting with six settings
- Multi-function remote included: on/off, thermostat mode, flame height, blower and lights
- Electronic IPI/CPI ignition with a four AA battery backup that runs the burner in a power outage (blower excluded)
- Platinum crushed glass media included; reflective black and reflective blue glass, a driftwood log set and river rock are available
- Tempered glass front with a protective screen barrier that meets the ANSI Z21.88 barrier requirement
- Clean face with integrated tile stops; non-combustible facing up to 6" deep can overlap the face
- 17" deep, so it fits an 18" deep framed wall with flush framing
- Listed for bedrooms and for permanently located manufactured homes (USA)
- Vents from the top with Superior Secure Vent rigid pipe, Secure Flex flexible pipe or Z-Flex GA
- 20 year limited warranty on the body, firebox and barrier
What's Included
- Electronic IPI/CPI ignition with battery backup
- Factory-installed six-speed blower
- Floor lighting
- Multi-function remote control with wall receiver (batteries included)
- Platinum crushed glass media (5 lb bag; the 35" uses 3.5 lb)
- Tempered glass front with protective screen barrier
- Black painted interior
- 4-3/4" non-combustible fireboard
- Header heat shield, wall heat shield and elbow heat shield
- Two U-shaped vent restrictors
- Minimal vent run baffle
What to Order With It
Required – Venting (4-1/2" x 7-1/2", ordered separately):
Optional – Surrounds:
Optional – Liner:
Optional – Media and logs:
Optional – Gas conversion and touch-up:
Specifications
| Models |
DRL3535TEN (natural gas), DRL3535TEP (propane) |
| Order numbers |
F4183 (DRL3535TEN), F4896 (DRL3535TEP) |
| Type |
Linear direct vent gas fireplace, single-sided, sealed combustion |
| Input, natural gas |
18,000 Btu/hr high, 12,000 Btu/hr low |
| Input, propane |
16,000 Btu/hr high, 13,000 Btu/hr low |
| Efficiency, natural gas |
69.2% AFUE, 65.1% P4 |
| Efficiency, propane |
55.3% AFUE, 63.1% P4 |
| Glass viewing area |
30" W x 16-3/4" H |
| Fireplace size |
35-1/2" W x 24-3/4" H x 17" D |
| Framed opening, flat wall |
35-7/8" W x 29" H x 18" D (add 1/8" per side) |
| Ignition |
Electronic IPI/CPI with four AA battery backup |
| Blower |
Factory-installed, six speeds |
| Lighting |
Floor lighting, six settings |
| Remote |
Multi-function remote with wall receiver: on/off, thermostat, six flame heights, blower and lights |
| Power |
120 VAC, 60 Hz, grounded, to the junction box on the right side |
| Gas connection |
1/2" supply line to the left side; 3/8" NPT valve inlet |
| Gas inlet pressure |
Natural gas 5" to 10.5" WC; propane 11" to 13" WC |
| Venting |
Direct vent, top, 4-1/2" inner x 7-1/2" outer: Superior Secure Vent (rigid), Secure Flex (flexible) or Z-Flex GA |
| Vent run |
Up to 60 ft vertical and up to 25 ft horizontal, per the vent chart in the manual |
| Glass and barrier |
Tempered glass with protective screen barrier |
| Media and interior |
Platinum crushed glass (5 lb bag included, 3.5 lb used); black painted interior |
| Altitude |
0 to 4,500 ft with the standard orifices |
| Listing |
ANSI Z21.88 / CSA 2.33 and CAN/CGA-2.17-M91, vented gas fireplace heater (PFS report F19-008) |
| Approved locations |
Bedrooms; aftermarket, permanently located manufactured homes (USA only) |
| Shipping weight |
101 lb |
| Warranty |
20 year limited (see Warranty below) |
Efficiency figures are from Superior's installation manual, Table 2. AFUE is the US Department of Energy measure; P4 is the Canadian CSA P.4.1 fireplace efficiency rating. The 35" propane P4 figure is measured with CPI disabled.
Dimensions and Framing
Fireplace dimensions
| Overall width at the top (E) |
35-1/2" |
| Body width at the bottom (H) |
32-7/8" |
| Overall height (A) |
24-3/4" |
| Height below the top flange (B) |
23-1/4" |
| Depth (J) |
17" |
| Glass viewing area (D x C) |
30" W x 16-3/4" H |
| Back width (F) |
24-3/4" |
| Vent center from the side of the back (G) |
12-3/8" |
| Vent center from the back (I) |
6-1/2" |
| Vent center to the front (K) |
10-5/8" |
Letters match the drawings above.
Framing, flat wall
| Opening width (A) |
35-7/8" minimum; 1/8" more per side is recommended |
| Opening height (F) |
29" |
| Depth, flush framing (H) |
18" |
| Framing height with a 12" vent section, then an elbow (G) |
42" |
| Framing height with an elbow directly on the unit (I) |
31-1/2" |
| Wall opening for a horizontal vent |
10-1/2" W x 12-1/8" H |
| Ceiling or roof opening for a vertical vent |
10-1/2" x 10-1/2" minimum |
Framing, corner
| Opening width (A) |
35-7/8" minimum; 1/8" more per side is recommended |
| Width across the front of the corner (B) |
59-1/2" |
| Each wall, measured from the corner (C) |
42-1/8" |
| Depth from the front line to the corner (D) |
30-1/4" |
Framing is 2x4 or larger. These framing figures are for rigid Secure Vent; with flexible venting, follow the framing in the vent kit instructions.
Installation Requirements
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Clearances to combustibles: 0" at the spacers and top standoffs, 1/2" to the outer wrapper at the back and sides, 0" at the floor (6" if the optional facade is used).
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Ceiling: at least 52" from the bottom of the fireplace to the ceiling.
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Side walls: the fireplace can't be recessed behind the wall surface. With one side flush to a wall, the wall on the other side must not extend past the front edge of the unit. At 6" or more from the side, a combustible side wall can run any length.
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Front: keep 36" clear in front of the glass for service.
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Mantel: a 12" deep combustible mantel needs to be at least 16" above the hood; shallower mantels can sit lower, per the mantel chart in the manual. Non-combustible mantels can go at any height, but nothing may hang below the hood.
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Wall finish: combustible finishes must stay off the black front face. Non-combustible facing up to 6" deep can overlap the face, as long as it doesn't cover the glass or block removal of the barrier.
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Shelf or TV above: with top venting and one 90° elbow, a combustible shelf must be at least 47" above the base of the fireplace with a rigid Secure Vent elbow, or 49" with a Secure Flex elbow. Don't insulate the space between the fireplace and the shelf. A TV above must stay within its maker's temperature rating.
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Floor: no hearth extension is required. On carpet, vinyl or any combustible floor other than wood, set the fireplace on a metal or wood panel the full width and depth of the unit.
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Venting: use only Superior Secure Vent, Secure Flex or Z-Flex GA pipe in the 4-1/2" x 7-1/2" size. Superior strongly recommends at least 1 ft of vertical rise directly off the top of the 35" unit. The vent chart covers up to 60 ft of vertical run and up to 25 ft of horizontal run; the restrictors and baffle that ship in the firebox are used on the layouts the chart calls for. Keep 3" of clearance above horizontal vent runs and 1" at the sides and bottom.
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Heat shields: install the header shield that ships with the fireplace. On a horizontal vent run, the wall heat shield goes on at the exterior wall firestop; walls thicker than 12" need Superior's wall heat shield extension kit (F3694). The elbow heat shield is required when a 90° elbow sits directly on the fireplace.
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Gas: run a 1/2" gas line to the left side of the fireplace. Inlet pressure must be 5" to 10.5" WC on natural gas or 11" to 13" WC on propane.
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Power: a grounded 120 VAC supply to the junction box is required. The remote's wall receiver mounts in a wall junction box (not included) next to the fireplace, within reach of its wiring harness. The batteries are backup only.
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Altitude: the standard orifices cover 0 to 4,500 ft. Above that, the input has to be reduced; ask your gas supplier.
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Massachusetts: installation and repair must be done by a licensed plumber or gas fitter. The flexible gas connector can't be longer than 36", and the shutoff must be a T-handle valve. A horizontal termination less than 7 ft above grade also needs a hard-wired carbon monoxide detector with battery backup on the floor where the fireplace is, and a GAS VENT DIRECTLY BELOW sign outside.
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Manufactured homes: ground the fireplace to the chassis and don't cut or weaken the cross members.
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Installation: must be installed by a qualified installer following the installation manual and local codes. Superior calls for an inspection by a qualified service person before first use and once a year.
Frequently Asked Questions
What does the DRL3535 remote control?
The included multi-function remote turns the fireplace on and off, runs it in thermostat mode, and sets the flame height, blower speed and floor lighting, each with six settings. Its receiver mounts on the wall next to the fireplace and has an ON/OFF/REMOTE slider, so you can still run the fireplace if the remote is misplaced.
Will it work during a power outage?
Yes. Four AA batteries in the remote receiver run the burner when the power is out. The blower won't run until power returns.
Can I put a TV above it?
Yes, if the shelf or TV mount is at least 47" above the base of the fireplace with a rigid Secure Vent elbow (49" with Secure Flex) and the TV stays within its maker's temperature rating. Superior offers the HeatFlo kit only for the 45" and 55" sizes. Our guide to fireplace heat management explains the options.
Can I change it from natural gas to propane, or the other way?
Yes, with Superior's conversion kit: GCK-S-L3535NP for natural gas to propane or GCK-S-L3535PN for propane to natural gas. In a manufactured home, the fireplace may only run on the gas shown on its rating plate.
What's the difference between the DRL3535 and the DRL2035?
Both are 35" Superior linear direct vent fireplaces with the same framing. The DRL2035 leaves out the blower, floor lighting and remote, ships with reflective black glass and a 2-3/4" fireboard, and runs at a lower input (15,000 Btu/hr high on natural gas). It needs a wall switch, thermostat or remote added, and it needs less mantel clearance.
Can it go in a bedroom?
Yes. The DRL3535 is listed for bedrooms and for aftermarket, permanently located manufactured homes in the USA, where local codes allow.
What's the difference between IPI and CPI?
In IPI mode the pilot lights only when the fireplace is turned on. CPI keeps the pilot lit, which the manual suggests if the burner has trouble establishing draft. The DRL3535 remote switches between the two. Our millivolt vs electronic ignition guide covers pilot gas use.
Warranty
Superior's 20 Year Limited Warranty covers the DRL3535 against defects in materials and workmanship:
- Fireplace body, firebox and barrier: 20 years
- Burner, gas components and gaskets: 1 year
- Tempered glass: 1 year, replacement
- Optional blowers and remote controls: 1 year
- Parts not listed: 90 days
- Labor: paid at IHP rates for the covered part's warranty period, up to five years
Vent components, trim and paint are not covered. The warranty is for the original owner of a fireplace installed in the US or Canada. Full terms are in the warranty certificate.
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