No, your fireplace damper should never be left open in the summer. Keeping it closed is essential to keep your air conditioning inside, prevent foul odors, and keep pests out.
Close your damper
An open damper will allow cool air to escape your home and pull in uncomfortable hot air, causing your A/C to work overtime. Open dampers also are invitations for squirrels, birds, snakes, rodents and other critters to come on in and explore your home.
Explained, the chimney pipe must be a minimum of three feet above the roof but also two feet taller than anything within ten feet. The portion of the rule stating the pipe needs to be 2 feet above anything within 10 feet is where most people get confused.
Many people are under the impression that opening the damper helps cool the house, because warm air rises and will travel up the true. This is simply not true. Leaving your damper open will actually allow hot outside air to draft in, negating the effects of your air conditioning system.
Correctly using a fireplace damper is easy. The time to fully open the damper is before you strike a match to the newspaper and kindling. If you're unsure if it's open, bend down and look inside the fireplace at the top of the firebox.
A fully open damper allows maximum airflow, making the fire burn hotter and faster. If you want a slower burn or a fire that lasts longer, you can partially close the damper to reduce the oxygen supply. Just be careful not to close it too much because it can lead to poor combustion and smoke buildup.
However, when a chimney gets excessively dirty or clogged (by any number of things—debris and animal nests are common culprits), when your chimney damper is closed, or a part of your chimney is broken that prevents carbon monoxide and other combustion byproducts from venting, then you and your family may become at risk ...
How to Do It: Wait until all embers have extinguished and the fireplace is no longer warm to the touch. Closing the damper too soon can trap smoke and carbon monoxide inside your home, creating a dangerous situation. Safety Tip: Always double-check that the fire is completely out before closing the damper.
Fireplaces and other fuel-burning appliances are the leading sources for exposure to carbon monoxide. With the proper awareness and preventative action, CO poisoning is entirely preventable. Carbon monoxide is produced when fuels such as wood, gas, charcoal, kerosene, and oil are burned.
Here's an example to help illustrate this, with a fireplace with a Btu rating of 30,000: (30,000 x 1.59) / 100,000 = 0.47. That means it will cost about $0.47 per hour to run your fireplace. If you run your fireplace for 8 hours a night, it will cost $3.76 a day.
Yes, mice absolutely can and do come down chimneys, utilizing them as warm, sheltered, and vertical pathways to enter homes. Mice are excellent climbers that can scale the exterior brickwork, enter through gaps or cracks, and move down the flue into the fireplace or attic.
Additionally, in the early 1980's, tests were conducted to discover which kind of wood created the most creosote in a regular “open” fireplace. The results were surprising. Contrary to popular opinion, the hardwood's, like oak and poplar, created more creosote than the softwoods, like tamarack and pine.
The "7 Times Rule" for chimneys dictates that the cross-sectional area of a masonry chimney flue cannot exceed seven times the area of the appliance’s vent connector (draft hood outlet) to ensure proper drafting and prevent acidic condensation. If the chimney is too large, it must be relined to prevent damage from cooling gases.
How cool should my house be if it's 100 outside? Your AC can typically cool about 20°F below the outdoor temperature, so if it's 100°F outside, maintaining 78–80°F indoors is reasonable.
In the summer, set your HVAC dampers to fully or mostly open for the upstairs and partially closed for the basement and main level. Since warm air naturally rises and cool air sinks, this forces the maximum amount of conditioned air into your hottest rooms to balance the house.
Creosote ignites and burns off at approximately 450∘F to 500∘F (232∘C to 260∘C). However, completely eradicating thick, heavy buildup typically requires sustained flue temperatures exceeding 1,000∘F to 1,200∘F (538∘F to 649∘C).
Short answer: people are ditching fireplaces. From dodging draughts and dust to embracing cleaner, cheaper heating, old hearths are out and modern solutions like Electric Fire Suites are in. Keep reading to explore the lifestyle, health, and eco reasons behind this cosy-but-smart home trend.
Natural gas is usually the cheapest way. Even with higher gas prices, a heating system fueled by natural gas is typically less than electricity, propane, or heating oil. Energy efficiency is another way to assess the cost of a heating system. An energy-efficient heating system saves you money on your heating bill.
Technically, gas fireplaces are usually cheaper to run than a furnace, but that doesn't mean they're better. This is because a furnace is better at turning gas into heat than a fireplace is. For the comfort of everyone in your home, it's best to use central heating.
Carbon monoxide is called the silent killer. You can't see it or smell it, but it can make you very sick or even be deadly. This November, take simple steps to protect your home and family: Check your CO detectors, inspect appliances, and never use generators or fuel-burning tools indoors.
Electric fireplaces: Zero emissions, low maintenance, and “cool-to-touch” safety make them the healthiest choice. Alternative fuels: Bioethanol and pellet stoves are better than wood, but still need ventilation.
The short answer is yes. The primary reason to close your fireplace's damper during summer is to protect it from humidity and any extreme weather events that are commonplace during this season.
Factory built/prebabricated fireplaces – All manufacturers require that the glass doors be fully open when operating the fireplace with gas logs. Not partially open, FULLY OPEN. Partially opened doors as well as closed doors tend to cause spillage of the gases into the house.
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