Best Gas Fires 2022 – Our Guide

Install a flueless gas fire instead of an electric fire and you will save 70% in running costs.

When considering fireplace efficiency you need to consider the appliance type and the fuel you will use to figure out the best gas fire for you. Most high efficiency gas fires use glass on the front to stop heat escaping from the room up the chimney or flue system, including our range of inset gas fires. The alternative is a flueless gas fire, a bio ethanol fireplace or an electric fire all of which are 100% efficient. The difference is that gas is 70% cheaper per Kw than electric or bio ethanol. READ ABOUT FIREPLACE TYPES

To compare the true running costs of different types of gas fire you need to compare them “like for like” using the “input kw rating” of the appliance and the efficiency rating. The table below summaries the different types of gas fires available and compares them with the same heat input to find out the best UK gas fires.

  • The heat input rating (Kw) of the appliance is the “running cost”.
  • The efficiency rating of the appliance decides how much of the heat you pay for ends up in the room.

Flueless Gas Fires

Balanced Flue Gas Fires

Ribbon Fires

High Efficiency Fires

Hole In The Wall

Double Sided Fireplace

Powerflue Gas Fires

Gas Fire Bowl

By installing a Blade HE Gas Fire in my home I reduced my overall gas bills by 46% saving £170 between Jan 2013 & April 2013” Read how installing a modern, CVO, high efficiency gas fire can help reduce your overall heating bills.

The table below summarises the different types of fireplace and compares appliances with the same heat input and examples of the best gas fires for sale. The heat input is your running cost. The efficiency of the appliance decides how much of that heat ends up in the room.

Example Appliance
Efficiency Rating
Heat Input
Heat that comes into Room
Running Cost per Hour
Annual Cost
Flueless Gas Fire
High Efficiency Gas Fire
Balanced Flue Gas Fire
Electric Fire
Bio-Ethanol Fire
  • Gas @ 4.5p per Kw/Hr
  • Electric @ 13.8p per Kw/Hr
  • Bio-Ethanol @ 275p per Litre
  • Annual Cost is based on 3 hours per night for 120 days (4 months).

Conclusion. The most cost effective way to add extra heat is to use gas. If you need 4kW or less heat you should choose a flueless gas fire, if you need more than 4kW of heat then you should choose a balanced flue gas fire. The amount of heat you require depends on the size of the room and how well insulated your house is. If you’re unsure then please call us and we can help advise you on the best solution. To give you an idea of what 4kW is like, imagine a room with two extra radiators.

Are you looking for energy efficiency to save money on your heating bills or to get more heat into your room?

Energy Efficiency is not just about the efficiency rating of the fire. There are other factors that need to be taken into account. The most energy efficient product you can buy today will use gas and will either be a flueless gas fire that doesn’t need a chimney, or a high efficiency inset gas fire which uses an existing chimney and upgrades it to high efficiency or a balanced flue gas fire which need a special flue system. All other forms of heating may provide heat but will cost you more for that heat. It’s an established fact that gas is the cheapest fuel per Kw of heat.

Here’s an example of saving money while having the same heat in the room.

If you have a 6kw open flame fire this will cost you 27p/hour to run and provide 1.5kw of heat into your room. If you replace this with a CVO high efficiency fire like the Bailey it will only cost you 9p/hour to run and still give you 1.5kw into the room. That’s a saving of 67% on running costs. This is because the bailey has a 2kw burner and is glass fronted with 77% efficiency.

Here is an example of saving money and also getting more heat into your room.

If you have a 6kw open flame fire this will cost you 27p/hour to run and provide 1.5kw of heat into your room. If you replace this with a CVO high efficiency wall mounted fire like the blade it will only cost you 21p/hour to run but will give you 3.9kw of heat into the room. That’s an additional 150% of heat with 22% less cost. This is because the blade has a 4.6kw burner and is glass fronted with 84% efficiency.

Now you can understand why choosing the right fire for the right reasons is critical!

Here is a quick guide to gas fire types and efficiency:


What are Flueless Gas Fires?

These are 100% energy efficient with generally low running costs – 5p to 10p per hour. Most models are either wall hung or are as part of a traditional suite with surround hearth etc. The gas burner is designed to have very low emissions and this combined with the ODS safety device and the air vent in the room means the fires are very safe and reliable. The flueless gas fires manufactured by CVO are unique as they don’t have glass on the front or filters. Read more about flueless gas fires.

What are Balanced Flue Gas Fires?

These have an efficiency of around 85% and use a special flue liner which has two pipes. The first brings air in from outside, and the other takes away the emissions. Generally these fires are expensive to install due to the construction of the burner. All balanced flue gas fires are glass fronted with no air vent is required in the room, but a flue pipe is required to be put through the wall. The running cost depends on the Kw rating of the fire chosen and care needs to be taken not to choose a high power appliance as the efficiency will mean too much heat is generated. Balanced flue fires have a higher purchase price and can have a high cost of installation [building work and the flue pipes]. Read more about balanced flue gas fires.

What are Open Flame Gas Fires?

These have an efficiency of around 50% and use an existing chimney, pre cast flue or a flue liner. These gas fires are open flamed and no air vent is required in the room as long as the power rating is below 7kw. The beauty of open flamed gas fires is that they are visually pleasing and are able to be custom made to customer specification. With open flame fires, options are unlimited through our bespoke service. Our range includes many design styles of open flame gas fireplaces from small 2kw designs to large 20kw ribbon fires. Running costs can be between 4p/hour to 30p/hour depending on size. Read more about open flame gas fires .
These have an efficiency of 90% and use small flue pipes of 32mm, 54mm or 80mm diameter. This makes the fires easy to install in any location in a room as the pipes can be installed in the walls or under the floor. The flue pipes can run for up to 40 meters in length. The flue outlet is a small plate the size of a saucer and can be positioned on a wall or roof. These are glass fronted, room sealed appliances with high efficiency and low running costs. Read more about power flue gas fires.

These should be only considered if heat is required periodically. These fires operate on liquid bio ethanol fuel which is filled into a burner tray from a bottle which is then lit with a match. The heat generated is maintained in the room and the amount of heat depends on the strength of the burner. They have running costs of over 20x more than a gas fire for the same heat output which is why they should be used periodically. If heat is required all the time a gas fire should be chosen. Read more about our bio-ethanol fireplaces.

Electric fires are easy to install and use and are 100% efficient. The electric will cost 3x more than using a gas fire for the same heat in the room.

If this is an open flame wood burner the efficiency is very low, whereas glass fronted wood burners have higher efficiency and will provide a good amount of heat. The downside to these fires is the cost of buying and then storing the logs. Unless you have access to free wood, running costs can be 10x that of a gas fire hence why lots of customers are now converting back to gas. Whereas a stove may appear glamorous, the use ability and safety aspects should be considered. For instance the CO given off by a flueless gas fire is only about 2% that of a wood burning stove hence why, by law, you must have a CO monitor in your room. This is not a requirement of a flueless gas fire as the gas fire has a safety device that wood burning stoves don’t. There have been recent news articles claiming that burning wood is potentially hazardous due to particles in the air. Read more about our wood burning fireplaces.