Keep cold air out Along with the common throat damper located just above the firebox, some homeowners add a top-sealing damper at the top of the chimney to double their protection. Another great way to block cold air is with a chimney balloon or plug.

Why does so much cold air come in through my fireplace?

Improper insulation around a zero-clearance fireplace or insert may also provide a path for cold air to come into the home. If the fireplace unit is place on a wall whose back half faces the outside, proper insulation is critical.

How do you insulate a fireplace opening?





Fireplace 101: 6 Ways To Seal Your Fireplace

  1. Option #1: Inflatable Chimney Balloon.
  2. Option #2: Fireplace Cover or Door.
  3. Option #3: Insulating foam board.
  4. Option #4: Specialized Fireplace Damper With Rubber Seals.
  5. Option #5: Drape of Plastic or Insulated Magnetic Fireplace Cover.
  6. Option #6: Thin Slab of Stone.


How do you stop a draft going down the chimney?

A fireplace draft stopper is an efficient way to prevent this from happening. Whether you use a chimney balloon, a fabric draft blocker, glass doors or even create your own decorative cover, a fireplace draft stopper will keep your home warm while lowering energy costs.

How do you fill a gap between a wall and a fireplace?

If the assumption are right and the gap is 3/4 inch wide, I would use a caulking backer in the gap before using a good grade painter’s or acrylic caulk as a topper. The caulking backer is a round foam solid tube that can be cut to length, inserted into the gap to seal it and hold the caulk.

Can I put insulation in fireplace?





Air barrier material behind fireplaces must tolerate heat. Air barrier material can include thin sheet goods such as rigid insulation, sheet metal, or dry wall. These materials may be installed by insulators, framers, or subcontractors or vendors hired specifically to install the fireplace.

Does fireplace make house colder?

The standard fireplace is among the most inefficient heating devices you can operate. In fact, it can be so inefficient that in some cases it actually makes your house colder.

How do you insulate around a fireplace?

Quote from the video:
Quote from Youtube video: We have blocking on the backside of this insert that protects the insulation. And so this wall is is insulated and it has a surface that serves as an air barrier on the inside.

Do chimney balloons work?

How does it work? Chimneys act like giant hoovers, sucking air out of your home. This causes cold air to be pulled in from other gaps, causing the cold draughts we notice. The Chimney Balloon effectively blocks the chimney, stopping warm air from escaping and stopping cold air from getting in.

Can you use spray foam around fireplace?



To keep a fireplace working properly, never use spray foam on the inside of the fireplace or the chimney, or on the damper. On the exterior surfaces of the fireplace and chimney, spray foam is fine because these surfaces won’t get hot enough to melt it or to cause any damage.

Can you caulk around a fireplace?

Fireplace caulking is a little different than caulking around a bathtub, for example. The goal of caulking a fireplace crack is not only to cover the crack but also to force the mortar compound into the crack.

How do you fill gaps in a stone fireplace?

Quote from the video:
Quote from Youtube video: And recess the backer rod three-eighths of an inch to half an inch below the surface cut the nozzle to the bead size you need and load the caulking gun gun more flex into the joint.

What do you fill a fireplace with?



One of the most common choices is to fill a defunct fireplace with firewood. Homeowners prefer to stack it high and use attractive logs like beech or oak. And this keeps the primary fireplace theme and allows you to match other nearby natural woods…as long as the wood is pest free!

Why is my fireplace pulling away from the wall?

One of the main reasons for a brick or stone fireplace chimney to lean or pull away from a home deals with the footing under the chimney. Chimneys are very heavy and usually sit on a very small pad or footing. Often this pad is not attached to the homes’ main footing.

How much does it cost to brace a chimney?

Fixing the chimney crown itself can be anywhere from between $150 to $300 on average. In contrast, a full replacement can cost you between $220 to $2000, a steep increase.

What is behind the brick on a fireplace?

The brick you see on the fireplace is a facade. It is attached to the firebox by mortar. You’ll be able to clean up the brick behind the facade and cover them with a new flat mortar bed to install the tile or marble.

Why do chimney stacks lean?



One common cause for a leaning chimney is from the expansion of eroded mortar joints. If the surface of the chimney stack is exposed to the prevailing wind, constant wetting can result to the expansion of mortar joints, thereby causing the stack to lean away from the wind.

How do I strengthen my chimney?

REINFORCING NEW CHIMNEYS Three methods of reinforcement can be used to help ensure the structural stability of new chimneys; vertical reinforcement grouted inside the chimney, horizontal reinforcement placed in the mortar bed, and anchor straps securing the chimney to the building’s frame.

How do you know if your chimney is leaning?

If your chimney runs through the interior of the house, look in the attic to see if it is centered in its framed opening. If it’s pressing against the opening to one side or another, that means it is leaning.

What is chimney Flaunching?

Also known as ‘benching’, chimney flaunching is a term that refers to the strong mortar mix that holds your chimney pots in place. Created from a 3:1 sand and cement mix, the flaunching on your chimney provides a tough waterproof barrier to keep the interior of your chimney and your home dry.

What is capping a chimney?



Capping a chimney involves the installation of a covering on the top of a chimney, blocking the chimney opening. There are a number of different options available when capping a chimney, depending on whether the chimney is in use or not.

What are chimney soakers?

The Soaker, as its name suggests, facilitates the movement of water toward the gutter, leaving your roof and chimney safe from water damage.