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Rinnai Avenger 25MJ NG Unflued Convector Heater - White
AV25N3
$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 variable heat settings economy mode
- Child safety lock dual timers thermostatic control
Key Specifications
- Brand:
- Rinnai
- Model Number:
- AV25N3
- 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:
- White
- 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):
- 340
- Box Depth (mm):
- 700
- Box Weight (kg):
- 16
Product Reviews of Rinnai Avenger 25MJ NG Unflued Convector Heater - White
Overall Rating Snapshot
4.8 out of 5 stars from 105 reviews
98% of users recommend this product
What customers say, summarised by AI
- Heats large open-plan spaces quickly and maintains warmth efficiently
- Very quiet operation; barely noticeable noise even in close proximity
- Simple, user-friendly controls with remote and timer functionality
- Child-safe and suitable for homes with young children
- Attractive design blends well in most homes; lightweight and easy to move
- Some users note missing fan speed controls; otherwise very satisfied
Pros
Easy (15)
Efficient (7)
Quiet (6)
Quality (3)
Safety (3)
Cleaning (1)
Cheap (1)
Cons
Speed (1)
Solomon
Confirmed purchase 26 July 2025
Published on 20 August 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.
Cosy
Great price, looks good, efficient, quite and worth the price.
LMS
Confirmed purchase 12 July 2025
Published on 5 August 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 Product
Good product that was recommended by a plumber. This has been a good product with good energy rating.
Deb
Confirmed purchase 1 June 2023
Published on 30 August 2023
Yes, I recommend this product.
Check out what this reviewer thought after the first 3-6 months.
Quite efficient heater
Very easy to use, very quiet and efficient heater for a large space.
Derek
Confirmed purchase 19 July 2023
Published on 10 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.
Nice heater.
Quite simple to use
Charlene Stoloff.
Confirmed purchase 5 July 2023
Published on 26 July 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.
Rinnai Avenger
I have been looking for a warming solution for my home. I am truly amazed that has and this Rinnai would deliver. I have been pondering for years trying air conditioning, electric and oil heaters. Love it!
Cheryl Hennessey
Confirmed purchase 10 July 2023
Published on 24 July 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.
The Perfect Heater
The best investment made since moving to Perth. Simple to use with some added control features. Heats a large space in a short amount time which is perfect when the cold weather catches you out.
IDURM
Confirmed purchase 23 June 2023
Published on 7 July 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.
Fantastic heater
Thermostatic controlled. Works well
Rick Dunstone
Confirmed purchase 2 June 2023
Published on 24 June 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.
Phenomenal heater
Best heater Ive ever owned! Heats up massive open living area within 10 minutes. Your able to set a timer so the house is warm when you come home!! We have a lot of young nieces and nephews and its perfectly safe. Would recommend this to everyone! Staff at Joondalup and Rockingham were incredibly helpful
Asia
Confirmed purchase 8 June 2023
Published on 22 June 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.
Excellent product
Good quality and great features , only thing I missed is the fan speed control button not there
Amit
Confirmed purchase 7 June 2023
Published on 22 June 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 105 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 delivers strong, adjustable warmth with easy-to-use controls and high energy efficiency. Its portability and safety features make it suitable for families. One limitation is that it may not suit very small spaces due to its heat output.
What it’s great for
- Quick Room Heating
- Family Living Areas
- Efficient Winter Warmth
- Portable Heating
Where it works best
- Living Rooms
- Open Plan Spaces
- Larger Bedrooms
- Family Rooms
Who it’s for
- Families
- Homeowners
- Renters
- Elderly Residents
Things to consider
Its high heat output may be excessive for small rooms compared to specialist compact heaters.
Room size suitability
Medium to Large Rooms - Suitable for spaces up to 85m²
Energy efficiency score
9/10 - High star rating ensures efficient gas usage
Family safety rating
8/10 - Child lock and auto shut-off enhance safety
Portability rating
8/10 - Integrated wheels and lightweight build
Noise level vs category
Low - Operates quietly compared to typical gas heaters
Key benefits
- High Heat Output: Delivers up to 25MJ/h for fast, effective heating in larger spaces.
- Portability: Lightweight design and integrated wheels make it easy to move between rooms.
- User-Friendly Controls: Simple digital display and thermostat for precise temperature adjustment.
- Low Emissions: Unflued design with advanced combustion technology for cleaner indoor air.
- Timer Function: Programmable timer allows scheduled heating for convenience and energy savings.
- Child Lock: Built-in child safety lock prevents accidental operation.
- Auto Shut-Off: Automatic safety shut-off for peace of mind during operation.
- Energy Efficiency: Rated 5.8/6 stars on Australian Energy Rating for reduced running costs.
Q: How much gas does the Rinnai Avenger 25MJ NG heater use?
A: It uses about 25 megajoules of natural gas per hour at full output. In practical terms, that is roughly 6.9kWh equivalent heat input, so actual gas use will be lower when the thermostat cycles the burner down in milder conditions.
Q: What does the 25MJ rating mean for running costs on this heater?
A: At full output, a 25MJ natural gas heater typically costs around $0.60 to $0.90 per hour to run, depending on the gas tariff in your area. Actual cost is often lower because the thermostat does not need maximum flame all the time.
Q: Does an unflued convector heater like this need ventilation while it is running?
A: Yes. Because this Avenger 25MJ is unflued, it uses room air and releases combustion products back into the space, so fresh-air ventilation is required during use. It suits occupied living areas better than sealed rooms with doors and windows shut.
Q: Is the Rinnai Avenger 25MJ NG suitable for bedrooms or other small closed rooms?
A: No. An unflued natural gas heater like this is generally intended for living areas with ventilation, not small sealed spaces such as bedrooms or bathrooms. That matters if quiet overnight heating is the goal, where a flued model is usually the better fit.
Q: Can the Rinnai Avenger 25MJ NG heat a large open-plan living area?
A: Yes, it is designed as a higher-capacity portable gas heater, so it is better suited to medium to larger living areas than smaller gas convectors. Performance still depends on ceiling height, insulation, draughts and how open the floor plan is.
Q: Is the Rinnai Avenger 25 Plus the same heater as this model?
A: Not exactly. Shoppers often search for 'Avenger 25 Plus', but the key match point is the current model code and fuel type, such as AV25N3 for natural gas. If replacing an older unit, confirm it is natural gas rather than LPG before buying.