Vented and Vent Free Gas Logs: What is The Difference?

Gas fireplaces come in two configurations: vented and ventless. Each type of fireplace requires its own type of gas logs to function safely and correctly. Learn more about the difference below.

Vented gas log sets

1. They appear natural and realistic, with a yellow flame that looks like a real fire.
2. These log sets require a wood-burning fireplace for installation to work properly.
3. They provide radiant heat similar to burning real wooden logs.
4. When the flame touches the logs, it can produce some soot, which may require a bit of gas fireplace maintenance.
5. Overall, vented log sets are less expensive than ventless logs.

Vented gas logs require a functional chimney to vent all by-products outside. They produce more realistic flames but less heat than vent-free logs as the chimney flue must be open when in use. They will lose heat generated as it escapes through the chimney. Vented logs are decorative and provide a realistic fireplace experience. So if aesthetics are your primary concern when renovating a fireplace, a vented unit is likely your best choice.

Vent-free gas log sets

1. Having greater heating capacity, these logs can warm up your home quickly.
2. They are more environmentally friendly as they cause less pollution, since almost complete fuel is burned.
3. These logs do not require venting, and can be installed in a vent-free or wood-burning fireplace.
4. In order to use them safely, it is recommended to have a carbon monoxide detector and oxygen depletion system in place.
5. These logs can cause humidity inside, so it's important to keep that in mind.
6. It's important to check local codes for permitted usage, as vent-free logs are not allowed in some areas.

Ventless gas logs are a great option for heating, as they don't require any special venting. They can be used in existing fireplace installations with the chimney flue closed or in installations with no chimney at all. Vent-free gas logs are more efficient than traditional ones, as all heat is put back into the room and not lost up a chimney. However, be sure to check your local building codes before installing a ventless fireplace or gas log set, as they may be prohibited in some areas.

Note: Always ensure your gas appliance is installed by a trained professional.

Are vented or ventless gas logs better? It totally depends on what tickles your fancy, but vented sets offer a more lifelike flame and can cozy up your pre-existing wooden fireplace, while ventless logs are more efficient

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