When it comes to heating your home safely and efficiently, choosing the right flue system is critical. One of the most innovative and effective flue solutions available today is the Room Sealed Flue Kit (RSF). At Stainless Flue AU, we supply premium-grade RSF kits engineered for performance, safety, and compliance with Australian standards.
In this guide, we’ll explore what a room sealed flue system is, how it works, its advantages, and why it’s ideal for modern homes and airtight buildings.
What is a Room Sealed Flue Kit (RSF)?
A Room sealed flue kit RSF is a closed, balanced flue system that draws combustion air from outside the room (not from inside the house) and expels combustion gases back outdoors through a sealed pipe. It uses a twin-wall concentric flue where:
- The inner pipe removes exhaust gases from the appliance
- The outer pipe draws fresh air into the appliance
This sealed system ensures no air exchange with the room, making it perfect for highly insulated homes or rooms with limited ventilation.
Key Benefits of Room Sealed Flue Kits
1. Enhanced Safety
Since the appliance doesn’t draw air from the room, there’s zero risk of back-drafting harmful gases like carbon monoxide into your living space.
2. Superior Efficiency
Drawing cold air directly from outside improves combustion efficiency and appliance performance.
3. Ideal for Airtight Homes
Modern energy-efficient buildings require airtightness. RSF systems comply with these standards by avoiding indoor air disruption.
4. Flexible Installation
RSF kits can be installed horizontally or vertically, offering more versatility in compact spaces.
5. Compliance with Building Codes
In many Australian states, room sealed systems are mandatory for indoor gas appliances in sealed or poorly ventilated rooms.
Where are Room Sealed Flue Kits Used?
Room sealed flue systems are typically used in:
- Gas space heaters
- Gas fireplaces
- Pellet heaters
- High-efficiency wood heaters
- Commercial heating appliances
- Apartments and airtight residential homes
They’re especially recommended when traditional flue systems aren’t suitable due to room sealing or building layout.
RSF Kit Components from Stainless Flue AU
A standard RSF kit includes:
- Concentric twin-wall flue pipe
- Wall terminal or roof terminal
- Wall sleeve/seal
- Mounting brackets
- Gaskets and locking bands
- Optional elbow bends and extension pipes
We offer kits in various lengths and diameters to suit your heater model and installation preferences.
Stainless Steel for Ultimate Durability
At Stainless Flue AU, our room sealed flue kits are manufactured using 304 and 316-grade stainless steel, offering:
- Corrosion resistance
- Heat resilience
- Long-lasting structural strength
- A clean, modern finish
You can trust that your flue system will operate safely and look good for years to come.
How to Choose the Right RSF Kit
Here’s what you need to know before selecting a kit:
Appliance Compatibility
Always match your RSF flue kit with your specific heater or appliance model. Check the manufacturer’s specs.
Length & Configuration
Measure the vertical or horizontal length needed and plan for any bends, wall penetrations, or clearances.
Installation Direction
Decide whether the flue will exit through the roof or horizontally through a wall. Both options are supported with our kits.
Not sure? Contact our expert team at Stainless Flue AU — we’ll help you select the right kit.
Installation Considerations
Professional Installation Recommended
While some flue systems are DIY-friendly, room sealed flue kits should be installed by licensed professionals to ensure:
- Proper sealing
- Compliance with local building codes
- Correct draft and pressure balance
- Long-term performance and safety
Ventilation Regulations
Although RSF systems don’t use room air, appliances still must meet AS/NZS 5601 gas installation standards in Australia.
Why Buy from Stainless Flue AU?
Here’s what makes us the preferred supplier of flue systems nationwide:
- 💎 Premium stainless steel quality
- 🇦🇺 Australian-owned and operated
- 🧩 Full RSF kits with all necessary components
- 🔧 Custom configurations available
- 🚚 Fast and reliable delivery across Australia
- 📞 Technical support from flue specialists
- 🛡️ Products tested to Australian safety standards
Whether you’re heating your living room, studio, or a commercial space — our RSF kits offer unmatched quality and peace of mind.
Conclusion
If you’re looking for a flue system that offers maximum safety, energy efficiency, and compatibility with modern home designs, the Room Sealed Flue Kit (RSF) is the ultimate solution.
With Stainless Flue AU, you get expert craftsmanship, premium materials, and full compliance — all at a competitive price. Browse our collection today and find the perfect RSF kit for your heater.
FAQs
Q1. Can I use an RSF kit with a wood heater?
RSF kits are mainly designed for gas or pellet heaters, but some high-efficiency wood heaters also support them. Check with your heater manufacturer.
Q2. How does an RSF flue differ from a standard flue?
An RSF kit is fully sealed and uses outside air for combustion, whereas standard flues draw air from the room.
Q3. Are room sealed flue kits legal in Australia?
Yes, and in many cases, they are required by law for use with certain gas appliances in sealed rooms.
Q4. Can I install an RSF flue horizontally?
Yes, RSF kits are designed for both horizontal and vertical installation.
Q5. What maintenance is required?
Annual inspection is recommended to check for blockages, corrosion, or leaks.
