Best Gas Fireplaces

Gas fireplaces have become a staple in Australian homes, providing an efficient and stylish way to heat living spaces. However, choosing the best gas fireplace requires an understanding of the technical aspects to ensure optimal performance and suitability for your space. 

What makes the best gas fireplace?

1. Effective heat output vs. room size.
2. Cost effective energy efficiency.
3. Suitable gas type for fuel.
4. Proper ventilation for safety.
5. Space efficient design & easy installation.
6. Gas fireplace features & controls.
7. Build quality & material make.
8. Fireplace safety features.

Here, we delve into the considerations to help you make an informed decision on the best gas fireplace for you.

This guide should be used to provide direction to finding the best gas fireplace for your needs; however, always consult professional advice specific to your installation and requirements.

1. Gas Fireplace Heat Output and Room Size

The heat output of gas fireplaces is measured in kilowatts (kW), and selecting the right output depends on your room size:

1. Small Rooms (<30 m2): 2-5 kW
2. Medium Rooms (30-50 m2): 5-8 kW
3. Large Rooms (>50 m2): 8-15 kW

The key is to match the fireplace's output with your room's heating requirements. Overheating can lead to discomfort, while underheating can strain the unit and increase energy costs.

Factors Influencing Heat Output:

• Type of Fireplace: Freestanding, in-built, or wall-mounted designs vary in their efficiency and heat distribution.
• Fuel Type: Natural gas or LPG (Liquid Petroleum Gas) can slightly affect the efficiency and output.
• Efficiency Rating: Higher efficiency models convert more fuel into heat, reducing wastage.

2. Efficiency Rating Of The Gas Fireplace Model 

Efficiency is a critical factor for cost-effective and environmentally friendly heating. Look for fireplaces with high star ratings (5–6 stars). A higher star rating means more heat is converted from fuel, reducing waste and lowering running costs. Room-sealed models, which use external air for combustion, are typically the most efficient.

What Influences Efficiency Ratings

1. Flue/Venting Type:

• Direct Vent Fireplaces: High efficiency (70-85%) as they use external air for combustion, reducing heat loss.
• B-Vent/Conventional Flue: Lower efficiency (50-70%) due to significant heat loss through the chimney.
• Ventless/Flueless Models: Efficiency ratings up to 99% since no heat is lost via venting, but these are subject to strict regulations.

2. Heat Transfer Mechanism:

• Radiant Heat: Direct heat from flames to objects in the room is highly efficient.
• Convection Heat: Uses fans to circulate warm air but may experience slight losses during distribution.

3. Standby Losses:

• Pilot lights and minimal heat loss during idle periods reduce overall efficiency.

4. For gas fires in Australia

They are tested for energy consumption based on Mj/h (megajoules per hour of gas used). A cost-effective gas fire ideally should be in the low range, around 20 to 30Mj/h.

Efficiency ratings for gas fireplaces are calculated based on heat input, output, and losses due to combustion and venting. When choosing a fireplace, prioritise models with high efficiency ratings (above 70%) for cost savings, reduced environmental impact, and effective heating.

Always verify ratings with certifications like the Australian Gas Association (AGA) or EnerGuide to ensure accuracy.

3. Type Of Gas Fuel For The Fireplace

Australian gas fireplaces can run on:

• Natural Gas: A cost-effective and readily available option for homes with existing gas connections.
• LPG (Liquid Petroleum Gas): Ideal for properties without natural gas access. While slightly more expensive, LPG offers portability and versatility.

Ensure the fireplace you choose is compatible with your home's gas supply & use certified installers.

4. Fireplace Ventilation Options

Proper ventilation is essential for safety and efficiency. Gas fireplaces are categorised into flued and flueless models:

• Flued Fireplaces: These vent exhaust gases outdoors, ensuring cleaner indoor air. Subtypes include:
• Direct Vent (Balanced Flue): Uses external air for combustion and vents through a wall or roof, offering high efficiency and safety. Legend DV36 gas fireplaces are a perfect option for this type. 
• Conventional Flue: Draws air from the room for combustion and vents through a chimney. While less efficient, they are ideal for traditional setups.
• Flueless Fireplaces: Do not require a chimney or vent but are subject to stricter regulations in Australia due to safety concerns. Ensure your home meets ventilation requirements if you opt for this type.

5. Design & Installation

Technical design considerations include:

• Freestanding Models: Easy to install and highly efficient, they can be placed in almost any room.
• In-Built Models: Installed into existing cavities or chimneys for a seamless look.
• Wall-Mounted Models: Sleek and space-saving, ideal for modern homes.
• Outdoor Models: Built with weather-resistant materials for alfresco areas.

Professional installation is often required by law to ensure compliance with Australian standards. For best practice installation, always consult a professional and certified installer. If you're looking for design inspiration, read our guide on livingroom fireplace design ideas.

6. Features & Controls

Modern gas fireplaces offer advanced technical features to enhance functionality and convenience. The best designed fireplaces will feature:

1. Thermostatic Control: Maintains a consistent room temperature automatically.
2. Smart and Remote Controls: Allows operation via smartphone apps or remotes.
3. Timer Settings: Enables pre-scheduled heating.
4. Zoned Heating: Directs heat to specific areas, maximising efficiency.

7. Materials and Build Quality

Invest in fireplaces made from durable materials, such as high-grade steel or cast iron. Quality construction not only ensures longevity but also contributes to heat retention and efficient operation.

8. Safety Features

Check if the fireplace is equipped with safety mechanisms such as

• Flame Failure Devices (FFD): Automatically shuts off the gas supply if the flame extinguishes.
• Glass Fronts: Prevents accidental burns, particularly in homes with children.
• Oxygen Depletion Sensors (ODS): Monitors air quality and shuts off the unit if oxygen levels drop.

When choosing a gas fireplace, prioritise models equipped with advanced safety features like flame failure devices, oxygen depletion sensors, and cool-touch glass. These features, combined with proper installation and maintenance, will ensure safe and worry-free operation in your home.

Always consult a professional installer to verify compliance with Australian safety standards.

10 Types Of Gas Fireplaces

There are many types of gas fireplaces to choose from. To find the best type that will meet your technical specifications and space, you must have a high-level understanding of the unit's common features, limitations, and requirements. From there, you must consult a professional & experienced retailer from which you can choose from the following types:

1. Direct Vent Gas Fireplaces

• How It Works: These fireplaces use a sealed combustion system, drawing air for combustion from outside and expelling exhaust gases through a coaxial pipe (a pipe within a pipe).
• Key Features: Highly efficient (up to 85%). Does not impact indoor air quality since they don't draw air from inside the home. Flexible installation options, as they can vent through walls or roofs.
• Best For: Homes looking for efficient heating and improved air quality.
• Example Use: Modern homes with no existing chimney.

2. B-Vent (Natural Vent) Gas Fireplaces

• How It Works: These fireplaces vent exhaust through a vertical flue, typically a chimney, using indoor air for combustion.
• Key Features: Lower efficiency (50-70%) compared to direct vent models. Requires an existing chimney or a vertical flue to function. Offers a more traditional fireplace look.
• Best For: Homes with an existing chimney or those looking for a traditional aesthetic.
• Example Use: Renovating an older home with an existing masonry chimney.

3. Ventless (Flueless) Gas Fireplaces

• How It Works: This type of fireplace does not require a chimney or vent. It burns gas cleanly, allowing most of the heat and combustion byproducts to stay within the room.
• Key Features: High efficiency (up to 99%) as no heat is lost through venting. Requires adequate room ventilation to prevent moisture buildup and maintain air quality. Not permitted in all regions due to strict safety regulations (including some parts of Australia).
• Best For: Apartments or homes without chimney or flue access.
• Example Use: Small spaces like bedrooms or offices (if local regulations permit).

4. Freestanding Gas Fireplaces

• How It Works: Resembles a traditional wood-burning stove but runs on gas. It can be direct vent, B-vent, or ventless, depending on the model.
• Key Features: Can be installed almost anywhere. Provides excellent heating with a rustic or contemporary appearance. Easy to relocate compared to built-in models.
• Best For: Homes looking for flexibility and efficient heating.
• Example Use: Heating large open-plan spaces.

5. Insert Gas Fireplaces

• How It Works: Inserts are designed to fit into an existing fireplace cavity, converting it from wood-burning to gas.
• Key Features: Direct vent or B-vent options available. Easy retrofit solution for old, inefficient fireplaces. Modern models include blowers for better heat distribution.
• Best For: Renovating traditional wood-burning fireplaces.
• Example Use: Updating a classic fireplace in a living room.

6. Wall-Mounted Gas Fireplaces

• How It Works: Mounted on or recessed into a wall, these units provide heating and act as a decorative feature.
• Key Features: Sleek, modern design. Typically ventless or direct vent. Space-saving and ideal for small areas.
• Best For: Contemporary homes and apartments.
• Example Use: A stylish addition to a living or dining room.

7. Built-In Gas Fireplaces

• How It Works: These are fully integrated into a wall or structure, designed as a permanent fixture.
• Key Features: Requires professional installation. Available in direct vent, B-vent, or ventless configurations. Can be customised with decorative surrounds and mantels.
• Best For: New builds or major renovations.
• Example Use: A feature wall in a lounge or master suite.

8. Outdoor Gas Fireplaces

• How It Works: Specially designed for use in outdoor settings, these units are weather-resistant and often built into patios or outdoor entertaining areas.
• Key Features: Direct vent or ventless options. Often includes stylish features like glass beads or modern surrounds. Creates an inviting atmosphere in alfresco spaces.
• Best For: Outdoor heating and ambience.
• Example Use: A covered patio or garden area.

9. Log-Set Gas Fireplaces

• How It Works: These units replicate the look of a wood-burning fireplace by using ceramic logs placed over gas burners.
• Key Features: Often ventless or B-vent. Primarily decorative with lower heat output. Easy to install into existing fireplaces.
• Best For: Decorative purposes or supplemental heating.
• Example Use: A cosy decorative centrepiece in a rarely used room.

10. High-Performance Gas Fireplaces

• How It Works: These models prioritise heating efficiency and often feature advanced controls and zoned heating capabilities.
• Key Features: High heat output (up to 15 kW or more). Advanced features like thermostatic control, timers, and remote operation. Typically direct vent or sealed combustion.
• Best For: Large homes or open-plan spaces needing a primary heat source.
• Example Use: Efficiently heating a large family room or open living area.

Conclusion

Selecting the best gas fireplace for your home involves evaluating technical specifications, including heat output, efficiency, fuel type, and ventilation. By understanding these aspects, you can ensure optimal performance, safety, and comfort for your living space.

For tailored recommendations, consult a professional installer or visit a trusted retailer. With the right fireplace, you can enjoy the perfect balance of warmth, style, and efficiency in your home. If you are also considering a wood burning fireplace, read our comprehensive guide on how to choose the best wood fireplace for detailed information.