Empire Innsbrook 28,000 Btu Vent-Free Gas Fireplace Insert, Millivolt
The Empire Innsbrook 28,000 Btu vent-free insert with millivolt control (model numbers VBPC28IN31N and VBPC28IN31P) is a traditional vent-free gas insert with a built-in blower. It needs no chimney or vent and is meant for supplemental heat.
It fits an existing wood-burning fireplace or can be built into a framed wall. A log set, the banded brick liner and a surround are required and ordered separately; remotes and a shroud can be added.
Key Features
- 28,000 Btu/hr input on natural gas or propane
- Blower with variable speed control included
- Millivolt standing pilot with an on/off switch
- Vent-free: no chimney or vent pipe
- Log set, liner and surround required, ordered separately
- Fits an existing fireplace or a framed wall
What to Order With It
The insert ships with its blower, barrier screen, glowing embers, on/off switch and gas flex line. A log set, the liner and a surround are ordered separately and are needed before it can run.
Required – Log set (choose one):
Required – Liner:
Required – Surround (choose one; the cast iron surround needs the SAN adaptor kit):
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Cast Iron Surround, Black (SC336BL)
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Surround Adaptor Kit (needed with the cast iron surround) (SAN28)
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Steel Surround, 3-Sided, Black, 37" W x 24 1/2" H (DS28433BL)
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Steel Surround, 3-Sided, Black, 43" W x 27 1/2" H (DS28763BL)
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Steel Surround, 4-Sided, Black, 37" W x 25 7/8" H (DS28334BL)
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Custom Surround, 3-Sided, Black (CS3SIDED)
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Custom Surround, 4-Sided, Black (CS4SIDED)
Optional – Shroud (used with a surround to cover a larger fireplace opening):
Optional – Remotes and wall controls:
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Remote, Battery Receiver/Remote, On/Off (FRBC)
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Remote, Battery Receiver/Remote, Thermostat (FRBTC2)
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Remote, Electric Receiver/Battery Remote, On/Off (FREC)
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Remote, Battery Receiver/Remote, TouchScreen, Programmable (FRBTPS)
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Wall Switch, On/Off (FWS1)
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Wall Thermostat, Reed Switch (TMV)
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Wall Thermostat, Wireless (TRW)
Specifications
| Model numbers |
VBPC28IN31N, VBPC28IN31P |
| Insert dimensions |
32 1/4" W x 22 1/8" H x 17 5/8" D |
| Minimum fireplace opening |
22 3/8" H x 30 1/2" front width x 19" rear width x 15" deep |
| Built-in rough opening |
30 1/2" W x 22 3/8" H x 15" D |
| Fuel |
Natural gas (N) or propane (P); order the model for your gas, field conversion is not permitted |
| Type |
Vent-free insert (no chimney or vent); oxygen depletion sensor |
| Input, maximum |
28,000 Btu/hr, natural gas and propane |
| Input, minimum |
20,000 Btu/hr natural gas; 23,000 Btu/hr propane |
| Control |
Millivolt standing pilot with an on/off switch; runs without house power |
| Log set |
Required, ordered separately (LS18EF or LS18CR) |
| Liner |
Banded brick, required, ordered separately |
| Blower |
Included, with fan control switch and variable speed control |
| Gas connection |
Flex line with shutoff valve, right side |
| Listing |
ANSI Z21.11.2, unvented room heater |
| Manufactured (mobile) home |
May be installed in an aftermarket, permanently located manufactured home where local codes allow |
| Style |
Traditional |
Installation Requirements
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Installation types: into an existing wood-burning masonry or factory-built fireplace with a minimum opening of 22 3/8" H x 30 1/2" front width x 19" rear width x 15" deep; or built into a framed wall (zero-clearance enclosure) with a rough opening of 30 1/2" W x 22 3/8" H x 15" D. Firebrick, glass doors, screen rails and grates may be removed to make room; a fireplace converted for the insert cannot go back to burning wood.
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Hearth and floor: no hearth extension is required, but only heat-resistant materials such as stone, metal or tile may be within 16" of the insert face; no vinyl, carpet or wood-based products. Keep the lower vent openings clear.
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Clearances: at least 8" from the inside edge of the firebox to a perpendicular combustible side wall.
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Mantel: a combustible mantel shelf must meet the mantel chart in the installation manual.
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Room size: the room must be an unconfined space of at least 50 cubic feet per 1,000 Btu/hr of input (adjoining rooms count only if there is no door between them), or extra combustion air must be provided as the manual describes. Vent-free heaters are meant for supplemental heat. Check local codes before you buy; some areas restrict vent-free appliances.
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Bedrooms and bathrooms: an unvented heater over 10,000 Btu/hr may not go in a bedroom or bathroom, so this insert cannot. Massachusetts prohibits unvented gas heaters in bedrooms and bathrooms.
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Power: the burner needs no house power. The included blower needs a 120V, 60Hz, 1 A supply.
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Installation: must be installed by a qualified installer per the installation manual and local codes; the manual says Empire gas hearth products must be installed and serviced by NFI-certified gas specialists in the US. In Massachusetts the installation must be done by a licensed plumber or gas fitter.
Downloads
Warranty
Empire limited warranty, from the warranty section of the installation manual:
- Combustion chamber and heat exchanger: limited lifetime parts, with 5 years of limited labor
- All other components, except remote controls, thermostats, lights, accessories and replacement parts: 5 years parts and labor
- Remote controls, thermostats, lights, accessories and replacement parts: 1 year parts
The warranty applies to the original purchaser. Full terms, including what is not covered, are in the warranty section of the installation manual.
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