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Rinnai Avenger 25MJ NG Unflued Convector Heater - Silver
AV25SN3
$1899
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Product Overview
Key Features
- Gas room heater unflued portable
- Natural gas 6.2kW variable output
- 5.8 Star energy rating
- Portable design with variable heat settings
- Child safety lock and dual on off timers
Key Specifications
- Brand:
- Rinnai
- Model Number:
- AV25SN3
- Fuel Type:
- Natural Gas (NG)
- Power:
- 6200W
- Energy Rating (Star):
- 5.8
- Thermostat:
- Yes
Heating & Cooling
- Gas Input:
- 8.5 - 25MJ/h
- Heating Settings:
- Variable
Options
- Remote Control:
- Yes
- Timer:
- Yes - dual digital timers for mornings and evenings
Safety
- Safety:
- Child Safety Lock
- Installation:
- Must be checked and serviced every two years by a licensed and registered plumber
General Information
- Type:
- Unflued Portable Gas Heater
- Colour:
- Silver
- Supplier Colour:
- Platinum Silver
- Portability:
- Portable
- Availability:
- Not available in Victoria due to state legislation. Not available in SA (Gas Heaters over 18MJ must be flued)
- Additional Features:
- Low Emission Technology, Economy Mode, Preheat Feature
Warranty
- Manufacturer's Warranty:
- 5 Year
Heating & Cooling
- Gas Input:
- 8.5 - 25MJ/h
- Heating Settings:
- Variable
Safety
- Safety:
- Child Safety Lock
- Installation:
- Must be checked and serviced every two years by a licensed and registered plumber
Warranty
- Manufacturer's Warranty:
- 5 Year
Product Dimensions
- Product Height (mm):
- 485
- Product Width (mm):
- 610
- Product Depth (mm):
- 245
Box Dimensions
- Box Height (mm):
- 660
- Box Width (mm):
- 320
- Box Depth (mm):
- 700
- Box Weight (kg):
- 16
Product Reviews of Rinnai Avenger 25MJ NG Unflued Convector Heater - Silver
Overall Rating Snapshot
4.8 out of 5 stars from 130 reviews
93% of users recommend this product
What customers say, summarised by AI
- Heats large open spaces very quickly and efficiently, ideal for big homes
- Setup is straightforward; connecting to gas and power is easy
- Stylish, modern design in neutral colours fits various décor styles
- Economical operation with features like programmable timers and child lock
- Generally quiet and child-safe, though a few noticed minor gas smells initially
- Some reports of ineffective heating in very large areas or remote control issues
Pros
Easy (14)
Efficient (13)
Quality (4)
Safety (4)
Quiet (3)
Reliable (1)
Cons
Speed (1)
Fabulous
The unit it self is stylish fits our decor love the colour ,heard some reviews that it was loud absolutely not it’s fine.
Heather
Confirmed purchase 6 July 2026
Published on 28 July 2026
Yes, I recommend this product.
This customer is a verified purchaser who may have received an incentive in return for providing an authentic review.
Amazing product!
We were pleasantly surprised by the effectiveness of the heater. It warms up the whole house (more than 100 sqm) within minutes. It was very easy to set up, just had to connect the hose to the gas bayonet and electrical cord to the power point. Highly recommend.
Genevieve
Confirmed purchase 21 June 2026
Published on 14 July 2026
Yes, I recommend this product.
This customer is a verified purchaser who may have received an incentive in return for providing an authentic review.
Great product
Heats up my big area very quick, worth it and energy saving.
Unknown
Confirmed purchase 6 June 2025
Published on 2 July 2025
Yes, I recommend this product.
This customer is a verified purchaser who may have received an incentive in return for providing an authentic review.
Useful product
It’s expensive but what u invested it’s worth it. Heating is very good. Warm the area in short time so, less bill. Easy to install & operate.
Parin Shah
Confirmed purchase 8 June 2025
Published on 1 July 2025
Yes, I recommend this product.
This customer is a verified purchaser who may have received an incentive in return for providing an authentic review.
Good
Good
Anonymous
Confirmed purchase 24 June 2023
Published on 24 September 2023
Yes, I recommend this product.
Check out what this reviewer thought after the first 3-6 months.
A
Very good
Ldïã ümãmpõüw
Confirmed purchase 9 September 2023
Published on 23 September 2023
Yes, I recommend this product.
This customer is a verified purchaser who may have received an incentive in return for providing an authentic review.
Anonymous
Confirmed purchase 3 June 2023
Published on 20 September 2023
Yes, I recommend this product.
Check out what this reviewer thought after the first 3-6 months.
Anonymous
Confirmed purchase 14 August 2023
Published on 29 August 2023
This customer is a verified purchaser who may have received an incentive in return for providing an authentic review.
Awesome features and keeps the house warm
George Mawad
Confirmed purchase 22 July 2023
Published on 14 August 2023
Yes, I recommend this product.
This customer is a verified purchaser who may have received an incentive in return for providing an authentic review.
Anonymous
Confirmed purchase 22 July 2023
Published on 8 August 2023
Yes, I recommend this product.
This customer is a verified purchaser who may have received an incentive in return for providing an authentic review.
You've viewed 10 of 130 reviews
ABOUT THE GOOD GUYS REVIEWS
The Good Guys product reviews are collected from verified purchasers who may have received an incentive in return for providing an authentic review.
The below information is AI generated based on Australian websites information around this item. We have done our best to ensure its accuracy but suggest verifying any information within this tab before purchasing.
At a glance
The Rinnai Avenger 25MJ NG Unflued Convector Heater is a portable gas heater ideal for medium to large Australian homes. It offers strong heating performance, user-friendly controls, and high energy efficiency. Its portability and ease of use make it a great choice for families, though it may not suit those needing permanent, built-in heating solutions.
What it’s great for
- Efficient Room Heating
- Quick Warm-Up
- Portable Use
- Family Comfort
Where it works best
- Living Rooms
- Family Rooms
- Open Plan Areas
- Rental Properties
Who it’s for
- Families
- Renters
- Homeowners
- Elderly Residents
Things to consider
Not suitable for permanent installation; lacks integrated ducting found in premium built-in heaters.
Room size suitability
Medium to Large Rooms - Suitable for spaces up to 85m².
Energy efficiency score
9/10 - 5.8 star energy rating ensures low gas consumption.
Family safety rating
8/10 - Child lock and auto shut-off features provide strong safety, but not as secure as flued models.
Portability rating
9/10 - Lightweight and easy to relocate within the home.
Noise level vs category
Low - Operates quietly compared to most portable gas heaters.
Key benefits
- High Heating Capacity: Delivers up to 25MJ of heat, ideal for medium to large rooms.
- Portable Design: Lightweight and easy to move, allowing flexible heating where needed.
- Electronic Controls: Simple, intuitive operation with digital display and programmable timer.
- Energy Efficiency: Rated 5.8 stars for energy efficiency, helping reduce running costs.
- Child Lock: Enhanced safety for families with young children.
- Low Emissions: Unflued design with advanced combustion minimises indoor pollutants.
- Auto Shut-Off: Automatically turns off if tipped or detects low oxygen levels.
- Stylish Finish: Modern silver colour blends with contemporary interiors.
Q: Is this Rinnai Avenger 25 heater for natural gas only?
A: Yes. This AV25 natural gas model is designed for connection to a natural gas bayonet point and is not the same as an LPG bottle heater. If LPG is needed, choose the matching Avenger LPG version rather than trying to convert this unit.
Q: What size room does the 25MJ output suit?
A: A 25MJ/h gas input is typically suited to a medium to large living area, roughly around 65 to 95 square metres in an insulated home. In open-plan or draughty rooms, effective coverage can feel smaller because more heat is lost.
Q: How much gas does the Rinnai Avenger 25 use, and what can it cost to run?
A: At full output, this heater uses 25MJ of natural gas per hour, which is about 0.7 cubic metres per hour. Using a typical gas tariff of 3 to 4 cents per MJ, running cost is roughly 75 cents to $1.00 per hour on maximum heat.
Q: Does an unflued convector heater need ventilation while running?
A: Yes. Because this is an unflued gas heater, it releases combustion products into the room, so fresh-air ventilation is required during use. It is better suited to ventilated living areas than bedrooms, bathrooms, or very small sealed rooms.
Q: Can this portable natural gas heater be moved between rooms?
A: Yes, but only if each room has a compatible natural gas bayonet connection available. It is portable in the sense that it can be repositioned around the home, but it cannot run freely from room to room without a gas connection point.