Indoor · wood
Wood Inserts in Utah
For the masonry fireplace you already have. An insert seals the flue, and the same hole that was losing you heat starts making it.
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Concept
The short answer
A wood insert is an EPA-certified firebox that slides into a masonry fireplace you already have, sealing the opening and running a stainless liner up the flue. It turns an open fireplace that loses heat into one that produces it, without a gas line and without electricity. Four measurements decide fit—front width, front height, back width, and depth—and the back is almost always narrower than the front.
In plain language
The Same Opening, A Different Appliance
A wood insert and a wood stove are the same technology in two shapes. Which one you can have is decided by your house, not by preference.
- It seals the masonry
- The reason to fit one is the same as with gas: an open masonry fireplace pulls heated room air up the chimney and can run a net loss. Closing that opening with a certified firebox and a full liner is what turns it into a heater.
- EPA-certified, and past 70% efficient
- These are not old airtights. A modern certified firebox burns the smoke as well as the wood, which is where the efficiency comes from—and it means less heat going up the flue and a harder draft to establish when the chimney is cold.
- Air-tube, not catalytic
- The units in this network are air-tube designs rather than catalytic ones. There is no combustor to replace on a schedule, which is the practical difference: fewer consumables, less to get wrong, and a longer service life with ordinary care.
- The forty-five-minute rule
- Build a genuinely hot fire and let it run for about three quarters of an hour before you choke it down. Most complaints about a modern wood unit not drawing, smoking, or glazing the glass trace straight back to skipping that.
Start here
Insert or Stove
Same fuel, same efficiency, entirely different installation. Your building decides.
- You have a masonry fireplace and want to use that opening Wood insert
- You have open floor space and want maximum heat Wood stove
- You have a masonry fireplace and want it beautiful, not hot Gas log set
- You want heat you can light on a red air day Gas insert
- You want the biggest possible open fire Open-hearth wood fireplace
The difference
Wood Insert or Gas Insert
Both seal the same opening. The choice is really about the days you most want to use it.
| Wood insert | Gas insert | |
|---|---|---|
| Needs a gas line | No | Yes |
| Needs electricity | No—it heats through an outage | Usually, unless standing pilot |
| Red air day in the valleys | Restricted | Runs—it is sealed and gas |
| Effort per fire | Loading, ash, and a cold start | A switch |
| Fuel | Cordwood you store and season | Piped, no storage |
| Where it Wins | Canyons, cabins, outage resilience | Valleys, everyday use, inversion season |
Local
What Changes Because This Is Utah
Inversion Season is the Catch, and There is One Exemption
On a red day along the Wasatch Front, solid-fuel burning is restricted. An EPA-certified unit registered as a home's sole source of heat can keep burning—but that exemption generally requires it to be your only heat, not a supplement alongside a furnace. Do not plan around it unless it genuinely applies to your house.
This is the Category for a Canyon or a Cabin
No gas line, no electricity, no control board. When the power goes out at 7,000 feet, a wood insert is still a heater. That is the reason these shops steer people toward wood rather than pellet for mountain properties.
Altitude Affects the Draft, Not an Orifice
There is no high-altitude conversion kit for a wood appliance, but thinner air does make establishing a draft harder—which makes chimney height, liner sizing, and that hot start-up fire matter more the higher you are.
What it costs
Installed, in Utah
Unit, vent, straightforward install
$4,700 – $6,600
A complete project
$6,000 – $14,400
The lower band covers the unit, the venting, and a straightforward install. The upper one is what a finished project usually runs once a gas line, electrical, and the stone or tile around it are in. On a remodel or a new build, about 2.5% of the total project budget is a useful sanity check. Whatever number you are given, make sure it covers the whole scope—unit, vent, gas line, electrical, finish work, and the permit.
Questions buyers ask
About Wood Inserts
What is a wood-burning fireplace insert?
An EPA-certified wood firebox that fits inside an existing masonry fireplace, sealing the opening and venting through a stainless liner run up the existing flue. It exists to make an open fireplace into a genuine heat source.
Does a wood insert need a chimney liner?
Yes, a full stainless liner from the insert to the top of the chimney. Venting a modern certified unit into open masonry is neither safe nor allowed—the liner is what gives it the draft it was designed for and keeps creosote out of the brickwork. It is part of the job.
How efficient is a wood insert?
A modern EPA-certified unit runs past 70%, against an open masonry fireplace that is close to break-even and can be negative. The mechanism is secondary combustion—the unit burns the smoke as well as the wood, which is also why it produces far less particulate.
How long will a wood insert burn overnight?
A properly sized unit loaded with dry hardwood will hold coals through the night and restart from them in the morning. Size is what decides it: undersize the firebox and you will be feeding it at 2am, oversize it and you will run it throttled, which is where glazed glass and creosote come from.
What size wood insert do I need?
Match it to the space you want to heat and how you intend to burn. The Enerzone Solution range in this network covers 1.7, 2.3, and 3.5 cubic feet, which spans a single warm room up to a main floor. Tell the showroom the square footage, whether this is primary or backup heat, and whether you want overnight burns.
Can a wood insert go into a prefabricated metal fireplace?
Usually not. Most wood inserts are listed for masonry fireplaces only, and a factory-built metal firebox carries its own listing that an insert is not approved to alter. Photograph the data plate inside the firebox and take it to the showroom—that plate settles it.
Wood insert or wood stove—which heats better?
A stove, all else equal. It stands out in the room so its whole body radiates into open air, while an insert sits inside masonry that absorbs some of that heat. An insert wins when you already have the fireplace and want to use that opening, which is most of the time.
Do I need electricity to run a wood insert?
No. The fire needs nothing. Many units offer an optional blower that does need power to circulate air faster, but with the blower off the appliance still heats by radiation and convection. That is the whole argument for wood in a canyon.
Can I burn a wood insert on a red air day in Utah?
Generally no. Solid-fuel restrictions on an action day apply to wood, certified or not. The exception is a unit registered as a home's sole source of heat, and that exemption normally requires it to be your only heat rather than a supplement.
How much does a wood insert cost installed?
Roughly $4,700 to $6,600 for the unit, the liner, and a straightforward install, with complete projects running to $6,000 to $14,400 once new facing, a hearth extension, or chimney repair are involved. The liner is the item most often missing from a cheap quote.
How often does a wood insert need cleaning?
Sweep and inspect annually with regular use. Certified units produce far less creosote than an open fireplace, but they still produce some, and the liner is a narrower passage than a masonry flue—so the annual visit matters rather than being optional.
Which wood inserts do these Utah shops carry?
Enerzone, in the Solution and Destination lines—air-tube designs rather than catalytic, cost-effective, quick to heat, with long burns and little to fuss over. Valcourt covers the high-efficiency built-in side of the wood range alongside them.
How it works
Here's How to Find the Perfect Fireplace
- 01
Browse the Products
Answer a few questions about your room and see the units that actually fit it.
Browse fireplaces → - 02
Find Your Local Dealer
Enter your zip code and meet the shop that serves your neighborhood. One shop, not a bidding pile.
Find your dealer → - 03
Book an Appointment
Showroom visit or in-home. They handle the permit, the venting, and the install.
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Find the Shop That Carries This
Enter your zip code and meet the showroom nearest you.
Worth a look
Three Models to Check Out
Chosen from what these shops actually stock and install. Every one opens its own page.
Enerzone
Solution 1.7-I
For one room, a basement, or a cabin
$
Insert
See this model →
Enerzone
Solution 2.3-I
The middle size, and the one that suits most main floors
$$
Insert
See this model →
Enerzone
Solution 3.5-I
When wood is your real heat rather than your backup
$$$
Insert
See this model →
Three of 6. Everything else in this category is in the configurator further up the page.