Mega-Flame Vent Free Gas Log Burner
Superior's cantilevered Mega-Flame burner on its own — two rows of tall yellow flame from the rear burner and a glowing ember bed on the flat front burner — in 24" (for 24" and 30" log sets) or 30" (for 36" sets): 40,000 BTU/hr high on the millivolt and variable-flame models, 38,000 (natural gas) or 39,000 (propane) on the battery-powered electronic model, a standing ODS pilot, vent free with the damper closed, from $1,199. It ships with its grate, flexible gas hose and fittings, volcanic stone and ember material, and carries Superior's three-year gas log set warranty on the grate.
Choose the bare burner if you already own a Mega-Flame log set — Giant Timbers or Mossy Oak — and are replacing or upgrading the burner under it: the 24" burner for 24" or 30" logs, the 30" for 36" logs, in the gas your fireplace is piped for. Pick the millivolt model if you want a standing pilot you light once a season that can take a wall switch, on/off remote or thermostatic remote kit; the variable-flame model for five flame heights and a thermostat from the ProFlame remote; the electronic model to light itself from the EcoFlow touchscreen remote with weekday/weekend programs. None of the three needs household power.
It is not right if you do not have a Mega-Flame log set — the burner is never run bare, and this page sells only the burner; the Giant Timbers and Mossy Oak pages sell logs and burner together. It is not for a firebox narrower than 32-1/2" at the front, shorter than 29" or shallower than 15-1/2", not for a bedroom or bathroom, and not for a factory-built fireplace whose own instructions rule out unvented gas logs. Each burner is built for one gas and cannot be converted.
Specifications
The burner sets the input: 40,000 BTU/hr high, 29,000 low on the millivolt and variable-flame models for either gas; 38,000 / 28,000 on natural gas and 39,000 / 31,000 on propane for the electronic model. Natural gas runs on 5" to 10.5" W.C. from the meter (3.4" manifold; 4.5" on the electronic model), propane on 11" to 14" W.C. from an installer-supplied external regulator (7.9" or 8.0" manifold), through a 3/8" NPT inlet. With its logs the burner needs a firebox 32-1/2" wide at the front, 22-3/4" at the rear, 29" high and 15-1/2" deep for the 24" burner with 24" logs, 39" wide and 26-3/4" at the rear with 30" logs, and 47" by 33", 29" high and 20" deep for the 30" burner with 36" logs. Keep 16" from the opening to a side wall and 42" to the ceiling, 36" of clear floor in front, and noncombustible facing at least 8" above the opening — 12" needs no hood, and the GA6050 hood is what makes a facing of only 8" to 12" work. Mantel shelf clearances are charted in Figures 6 and 7 on page 11 of the installation manual.
Features
- Cantilevered triple-burner design: a dual yellow-flame rear burner for two rows of tall flame and a flat front burner that lights the ember bed
- Up to 40,000 BTU/hr of vent free heat rated 99% efficient, with an ODS safety pilot that shuts the burner off if the room runs short of fresh air
- Standing-pilot millivolt and variable-flame models, or a battery-powered electronic model — none of them needs household power, so the fire keeps working in an outage
- Remote ready: the millivolt burner takes the GWMS2 wall switch, RCKIT4001 on/off remote or TRC thermostatic remote, sold here as Ignition kits
- Flexible gas hose and fittings, hardware, volcanic stone and both ember materials come in the carton
- Listed for a masonry fireplace, a UL127 factory-built fireplace or a listed vent free firebox — never one whose own instructions rule out unvented gas logs
Answers to common questions
What’s included, what’s required, and what’s optional?
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Included in the box: Mega-Flame vent free burner (24" or 30") — base assembly with grate, rear and front burners, ODS safety pilot, gas valve and regulator, approved flexible gas hose and fittings, gas fitting elbow, masonry-screw hardware package, volcanic stone and its installation manual; Platinum Bright Embers and Glowing Embers (rockwool) for the front burner; With the millivolt burner: push-button igniter, HI-LO flame knob and AUTO/OFF/ON switch, plus the GWMS2 wall switch, RCKIT4001 on/off remote or TRC thermostatic remote the Ignition choice names. With the variable-flame burner: ProFlame hand-held remote and receiver. With electronic ignition: EcoFlow touchscreen remote, touch pad and the control module's battery power supply.
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Required to complete the installation, purchased separately: A Mega-Flame log set — the burner is never run bare: Superior's Giant Timbers or Mossy Oak concrete logs in the size the burner takes (24" or 30" logs on the 24" burner; 36" logs on the 30" burner). The log set brings its placement instructions and the switch log. Buying logs and burner together? The log-set pages sell the pair; A solid-fuel masonry fireplace, UL127 factory-built fireplace or listed vent free firebox — at least 32-1/2" wide at the front, 29" high and 15-1/2" deep for the 24" burner with 24" logs, 39" wide with 30" logs, 47" wide and 20" deep for the 30" burner — with noncombustible facing at least 8" above the opening and its screen in place; Gas line by a qualified installer — 1/2" or larger pipe, an equipment shutoff valve with test tap and a sediment trap; propane also needs an installer-supplied external regulator set to 11"-14" W.C; Batteries — two 9-volt for a millivolt remote kit, 3 AAA and 4 AA for the variable-flame remote and receiver, AAA cells for the electronic remote and its power supply — none are included.
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Optional: The FM100 floor media kit (volcanic stone, embers and cinders) to dress the fireplace floor, and the GA6050 black fireplace hood, which is the part that lets you install with less clearance — 12" of noncombustible facing above your opening needs no hood, and the hood brings that down to 8" while also shortening every minimum mantel height (the manual's Figure 7 chart instead of Figure 6). Where your facing and mantel already clear, you do not need it.
What ships in the burner carton?
The base assembly with its grate, rear and front burners, ODS safety pilot, gas valve and regulator; an approved flexible gas hose with fittings and the gas fitting elbow for the connection to the appliance (installed where local codes allow); the hardware package with masonry screws for anchoring the base to the fireplace floor; volcanic stone; Platinum Bright Embers and Glowing Embers; and the installation manual. Variable-flame models add the ProFlame remote and receiver; electronic models add the EcoFlow touchscreen remote, the touch pad and the battery power supply. Batteries are not included, and neither is the gas piping, shutoff valve or propane regulator on the supply side.
Millivolt, variable flame or electronic — which Ignition option should I pick?
The millivolt burner has a standing pilot you light by hand with the igniter button, a HI-LO knob and an AUTO/OFF/ON switch housed in the log set's switch log, and no need for household power; it is remote ready, so the On/Off Wall Switch, On/Off Remote and Thermostatic Remote choices add the GWMS2 switch kit, the RCKIT4001 remote or the TRC thermostatic remote to the same burner. Variable Flame Remote is a different burner (MNF24INV / MNF30INV, or IPV for propane) with the ProFlame remote and receiver included — five flame heights, room and smart thermostat modes, child lock. Electronic Ignition is the MNF24INE / MNF30INE (or IPE) burner, which sparks its own pilot from a battery power supply and comes with the EcoFlow touchscreen remote and a touch pad — three flame heights, thermostat mode, weekday/weekend programs, child lock. Every option on this page is vent free.
Is it vent free, and can I use it in a fireplace with a working chimney?
It is a vent free room heater built to ANSI Z21.11.2: it runs with the damper closed, its ODS pilot shuts it off if the room runs short of fresh air, and Superior rates the series 99% efficient. It goes in a solid-fuel masonry fireplace, a UL127 factory-built fireplace or a listed vent free firebox — not in a factory-built fireplace whose instructions rule out unvented logs — and the room must meet the fuel-gas code's air volume (50 cubic feet per 1,000 BTU/hr). State and local codes in some areas prohibit vent free appliances, and no unvented heater may go in a bedroom or bathroom, so check your codes before you buy.
What size firebox and what clearances does it need?
With its logs, the 24" burner needs 32-1/2" of front width, 22-3/4" at the rear, 29" of height and 15-1/2" of depth under 24" logs, and 39" front / 26-3/4" rear under 30" logs; the 30" burner under 36" logs needs 47" and 33", 29" high and 20" deep. Around the opening: 16" to a side wall, 42" from the top of the opening to the ceiling, and 36" of clear floor in front. At floor level the appliance keeps 14" to combustibles; where combustible material is closer than 14", it must instead be installed at least 5" above the top surface of the combustible flooring. The wall above the opening needs noncombustible facing at least 8" high — 12" of facing needs no hood, and the GA6050 hood is what makes a facing of only 8" to 12" work, as well as shortening the minimum mantel heights. Mantel shelf clearances are charted in Figures 6 and 7 on page 11 of the installation manual. Send us your dimensions and we will check them.
Who installs it, and what should I know about living with it?
A qualified installer, service agency or the gas supplier installs and services the burner, with the fireplace off and cold; the base is screwed to the fireplace floor and the screen goes back in place before it is run, with any glass doors fully open. Expect a paper-burning smell for the first few hours, clean the burner air inlets every three months in season, have it inspected yearly, and note that above 4,500 feet the pilot may not stay lit.
Does buying from The Torch Guys affect my Superior warranty?
No. The Torch Guys is an authorized Superior dealer, and Superior's Gas Log Set Limited Three Year Warranty covers product bought through a listed IHP supplier: three years on the logs and grate, one year on gas components and the remote control, 90 days on other parts, with labor at IHP's rates for the component's period. It stays with the original owner at the original installation. Keep your invoice and the model and serial numbers from the burner's data plate, and we handle the claim with the manufacturer for you.
