Why an insert beats an open fireplace
An open masonry fireplace is a net heat loser. It pulls warmed room air up the chimney and sends most of the fire’s heat up with it — and, in our climate, an open, leaky fireplace also lets your air-conditioned air escape year-round. A sealed insert controls combustion air, contains the heat, and (for gas and wood) burns far more efficiently and cleanly. You go from ‘pretty but wasteful’ to an appliance that actually performs and seals when it’s not in use.
The detail that makes or breaks it: the liner
This is the part cut-rate installs skip. An insert has a much smaller flue outlet than the big open fireplace it replaces, and it needs a correctly sized liner running from the insert up to the top of the chimney to draft and vent properly. Dropping an insert into an oversized old flue without a proper liner leads to poor draft, more creosote (on wood), and worse — it can be unsafe. A right-sized, often insulated stainless liner is not an upsell; it’s part of doing the installation correctly. If someone quotes you an insert without addressing the liner, ask why.
Wood, gas, or electric insert?
- Wood insert: real wood fire, dramatically more efficient than the open fireplace, needs a liner and produces creosote (so it needs sweeping). Best if you love wood and will feed it.
- Gas insert: the popular middle path — flip-a-switch fire, real heat control, sealed and efficient, needs a gas connection and correct venting. For most South Florida homes wanting convenience, this is the sweet spot.
- Electric insert: no combustion, no liner, no gas — flame effect and gentle heat, easiest to install, ideal where running gas or lining the flue isn’t practical.
What installation involves
We assess your existing fireplace and flue, help you choose the insert type and size that fits the opening and your goals, install the correct liner (for wood and gas), set and connect the unit, and finish the surround so it looks integrated. For gas inserts, the usual gas licensing and permit considerations apply and we confirm scope before proceeding. The end result should look like it belongs and perform like a modern appliance — not like a box shoved into a hole.
Questions people ask us
What’s the difference between a fireplace insert and a new fireplace?
An insert is a sealed unit that fits into your existing open fireplace to make it efficient, using the fireplace and chimney you already have. A new fireplace is built from scratch. If you have an open masonry fireplace that’s pretty but wasteful, an insert is usually the faster, less invasive way to make it genuinely useful.
Why does an insert need a new liner if I already have a chimney?
Because the insert’s flue outlet is much smaller than the big open fireplace it replaces, and it needs a correctly sized liner from the unit to the top to draft and vent safely. Venting an insert into an oversized old flue causes poor draft, extra creosote, and safety problems. A right-sized liner is part of a proper install, not an add-on.
Which insert is best for a South Florida home?
For most people here, a gas insert hits the sweet spot — instant, clean, controllable fire without hauling wood — since fireplaces here are used occasionally and mostly for ambiance. Wood inserts suit those who genuinely love a wood fire; electric suits condos and spaces where gas or a liner isn’t practical. We’ll match it to how you’ll actually use it.