The Difference Between Fireplaces and Fireplace Inserts

What’s the difference between Fireplaces and Fireplace Inserts?

There is a lot of confusion about these terms. After all, a “fireplace” ought to be any place you can have a fire, right? Yep, but there is a difference anyway and today I’ll lay it out for everyone.

Open Fireplace example

An Example of an Open Fireplace

When folks talk about a “fireplace” they generally mean an open fireplace. This usually means an opening in the wall with a flue above it so you can have a fire. The key here is that it’s open. To confuse the matter more, a lot of fireplaces have glass doors on the front. You might point out that it’s not open anymore, and you’d be right, but it’s still “a fireplace.”

Fireplaces can be either masonry fireplaces or factory-built fireplaces (also called prefabricated or “prefabs.) A masonry fireplace is almost always built of bricks. There are some specialty types that are more exotic and use refractory materials, but 99.9% of them are made with bricks.

A factory-built fireplace is a metal box with refractory bricks inside manufactured to be framed into a house, without masonry. Sometimes they are gas fireplaces, but they are often for burning wood. These are perfectly safe when installed according to the manufacturer’s instructions.

The Heatalator

There’s also sort of “an in-between” situation, commonly called the Heatalator. Heatalator is a brand name which is applied to products which are generally like it. Just as all tissues aren’t Kleenex brand, it’s pretty common to just ask for a Kleenex and everybody understands. The same is true with Heatalator. It’s a metal firebox which is built into a masonry structure. Even though it was built in a factory, this is still considered a masonry fireplace. This is because of clearance and heat transfer requirements etc. Too much information? Suffice to say Heatalators are also fireplaces.

Fireplace Inserts

regency alterra CI1250-ASo what’s a fireplace insert? In a word, it’s a stove. Either gas or wood, it’s a stove which is inserted into an open fireplace. Fireplace inserts are almost exclusively installed into masonry fireplaces, though there are a few very special models which are listed to be installed into prefabricated fireplaces, such as the Regency Alltera CI1250.

A fireplace insert must always be installed according to the manufacturer’s instructions and listings or you’ll put your house in serious jeopardy. Following these two bits of advice will go a long way toward keeping you and your family warm and safe at the same time!

  • Insist that your stove have a properly-sized liner all the way from the top of the stove out of the top of the existing chimney. Click here for more information about chimney liners.
  • Insist on knowing that any insert you buy is listed for installation into your fireplace.
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3 Responses to The Difference Between Fireplaces and Fireplace Inserts

  1. Pingback: Best Fireplace Insert - Best Information Site about Gas Fireplace - Gas Fireplace Parts

  2. Chris Chernes says:

    I had my fireplace insert cleaned by you about 13 years ago. I understand that you should have it cleaned after burning a cord of wood. I barely use mine. So , my question is , do I need to clean it anyway? And I’d there any danger if metal fatigue w inserts ?
    Thanks

    • Dale Howard says:

      A very astute question. Yes, the metal does wear out eventually, even without fire. That’s not to say it has happened to you, but you do have to keep an eye on metal fireplaces. If it’s a factory built fireplace you are less likely to have a fatigue problem than a masonry fireplace with a metal firebox (Heatalator is a major brand of those, and generally descriptive of that type). The problem the metal fireboxes with masonry chimneys can have is that that they often never get to dry out and are subject to rust from behind (especially ones below grade). It’s an invisible problem but way more common that most folks imagine. It comes to light when the firebox is being removed for some other reason, and lo and behold- the metal is so thin it’d take your breath away. Very common even if mostly unknown.

      As to cleaning; you’ll likely profit more from the inspection than the cleaning itself I think. Get a certified sweep out there to look it over, sweep it if necessary, and maybe show him this note with my suggestion to pay special attention to the firebox.

      Good luck and stay warm!

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