Asked by: Venelina Howelhans
home and garden outdoor decorating

Do you need an air vent with a gas fire?

Last Updated: 3rd February, 2020

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With a gas fire, especially with decorative fuel effect gas fires an air vent is required, usually if its over 7.1 kw input, if its under that it probably wont require an air vent. All solid fuel open fireplaces need an air vent and the size of the air vent should be 50% of the throat opening to the chimney.

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Besides, do you need an air brick with a gas fire?

EU regulations state that gas fires with less than 7Kw of input do not require extra ventilation or air bricks. As most modern houses are highly efficient and insulated and are sealed to prevent drafts, expert advice should always be taken and the installation of an air brick should be considered.

Also Know, does a 5kw stove need an air vent? In other words a 5kw stove has no air vent requirements, whilst a 6kw requires one 50p sized hole, a 7kw two 50p sized holes (or equivalent) etc.

Subsequently, one may also ask, does a Flueless Gas Fire need an air vent?

Flueless fires require an air vent leading from the room where it is located to the outside. A flueless fire can only be used with other heat sources as well. It is not possible to use as the primary heating supply. There must be radiators or another heat source to enable installation.

How do you vent a gas fireplace?

Here's how it works:

  1. Direct Vent Gas Fireplaces – most are vented to the outdoors horizontally directly through the wall, but they can also be routed vertically through the roof.
  2. Wood Fireplaces and Stoves – venting must be terminated to the outdoors vertically.

Related Question Answers

Emerito Moradell

Professional

Do you need a chimney with a gas fire?

With a flueless gas fire, you don't need to have a chimney at all to enjoy a fireplace. You don't need to carry out as much building work to install one, either. You will just need to fit a 100cm2 ventilation brick on any exterior wall and connect your fire to a gas pipe.

Ouazna Iorga

Professional

Does a chimney need ventilation?

Ventilation needs to be provided to the chimney space to avoid moisture collecting on the soot and smoke deposits within the chimney and forming damp areas, this can easily be achieved by building in an air-brick as the fireplace opening is bricked up.

Ermes Jandhyala

Professional

How much air does a fire need?

Oxygen. Air contains about 21 percent oxygen, and most fires require at least 16 percent oxygen content to burn. Oxygen supports the chemical processes that occur during fire. When fuel burns, it reacts with oxygen from the surrounding air, releasing heat and generating combustion products (gases, smoke, embers, etc.).

Kare Mullmann

Explainer

Do all gas fires require a flue?

Today, it is not a necessity to install a gas fire or stove into a traditional chimney setting with a conventional flue; many gas fired appliances offer you the option of a balanced flue system which will exit discreetly from your property via a twin-wall pipe.

Mina Hammouche

Explainer

Are you allowed gas fires in bedrooms?

There is nothing to say you cannot have a gas fire or heater in a bedroom afaik, but it should be check annually to ensure it is working correctly and is safe. And you can use your house any way you wish. If you wish to make the living room a bedroom you can.

Hazem IƱarra

Explainer

Are old gas fireplaces safe?

Gas burns cleaner than wood, but it can still deposit substances corrosive to your chimney. These acids released by the gas are difficult to see and can pose health risks. Higher efficiency gas fireplaces keep chimneys cooler, but they can also cause condensation in the chimney, which corrodes the surface.

Ermanno Redaelli

Pundit

Are gas fires safe?

Gas fireplaces are safe. But as with all gas appliances, they do produce carbon monoxide. Therefore, carbon monoxide detectors are a critical part of gas fireplace safety, even if you don't use the fireplace often.

Macarena Rucandio

Pundit

Are open gas fires safe?

There are two main reasons why glass-fronted gas fires are safer than open-fronted gas fires. Firstly, with a gas fire that has a protective glass front, there is no danger of the flames coming into contact with flammable objects in the room, so the fire risk is almost completely eliminated.

Jerica Campillos

Pundit

Do flueless gas fires cause condensation?

Flueless gas heaters just chuck it all into the air inside the house. The water vapour produced will raise the relative humidity and increase the likelihood of condensation; the carbon dioxide will make you feel sleepy, and the carbon monoxide – if present – could damage your health.

Lucinio Bigotte

Pundit

How much does it cost to run a flueless gas fire?

Flueless Gas Fire – 2kw – 10p per hour. Wood Burning Stove – 2.35kw – 23.5p per hour. Open Flame Wood Burner – 8kw – 80p per hour. Open Flame Gas Fire – 8kw – 40p per hour.

Ayan Wittenburg

Pundit

Do flueless gas fires need servicing?

Flueless fires are as safe as any gas appliance. This means they have to be installed and regularly serviced by a competent qualified engineer.

Lilyana Berecibar

Teacher

What do you need for a flueless gas fire?

How Are Flueless Gas Fires Fitted?
  • Air Vent. Your gas fire takes oxygen in from your room to burn. To make sure this air supply is replenished, a vent is required, along with a permanent openable window.
  • Minimum room size. Your room should be at least 30 cubic metres to be able to install a flueless gas fire.

Bernadine Heindrichs

Teacher

Does gas fire need electricity?

We often get asked if gas fireplaces require an electric supply to work. Although every fire is designed differently and there are several different types of gas fires (High Efficiency, LPG, Side control, Flueless, Balanced Flue etc) the majority of gas fireplaces do not require any electricity to work.

Shorena Panico

Teacher

Are flueless gas fires warm?

Flueless gas fires have a lower heat rating than other fires of 2.5kw (other gas fires can go up to 6kw), but as they're 100% efficient, all of the heat goes into the room. 30 cubic metres should be adequate for most flueless fires, but please check the model requirements and your room size before buying.

Morro Zhivov

Teacher

Can I put a TV above a flueless gas fire?

Description. The Flueless Gas Fire Recess System is designed to allow a flueless gas fire to be installed into the wall, in most installations customers have also installed a TV above the fireplace. This is the overall size of the recess plate, the flueless gas fire fits within the recess.

Adriano Alary

Reviewer

What is the most efficient gas fire?

Flueless Gas Fires are the most efficient at 100%.

Karly Pettersen

Reviewer

Can you run a gas fire off bottled gas?

Well you can have a gas fire that runs on LPG (Liquid Petroleum Gas) or better known as bottled gas. The basic requirement is that you have somewhere outside that is safe and secure for the bottles to go. Then we can pipe the bottled gas to wherever it is needed, including your lovely new gas fire.

Servita Hihich

Reviewer

How far does a flue need to be above a roof?

The chimney should extend at least 3 feet above the roof surface it penetrates and 2 feet higher than any roofline or other obstacle within a horizontal distance of 10 feet. Taller chimneys make more draft, but chimneys exposed to outside cold don't. See our section on chimneys.

Rafa Metschl

Reviewer

Do I need to vent my stove?

Most residential building codes do not require a range hood above a stove or cook top, but you'd be wise to ensure your locale is not the exception. Even if it's not legally required, you should think long and hard before forgoing a hood altogether.