Heat Transfer Kits (AC and EC Motors)
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200mm EC Motor - Supply Issues
Due to a worldwide semiconductor shortage (made worse by Covid), supply of EC Motors is extremely limited. We have some 150mm stock available, but our 200mm EC Motor is unavailable without a return date.
The same 200mm EC Motor (with identical part numbers, specifications and performance) is currently available in our more advanced DVS EC Heat Transfer Kits. This system features a proprietary logic board and control panel, with thermostatic automation, multiple temperature displays, and fan speed control.
On This Page
- What Makes Fresh Ventilation Different
- Why Premium Components Matter
- About Heat Transfer Systems
- AC Motors vs EC Motors
- Standard Duct vs Green Duct
- Included Items
What Makes Fresh Ventilation Different
Fresh Ventilation is a family owned and operated business. Our main business has specialised in the installation of premium quality ventilation systems for over 10 years. Our heat transfer kits use the same premium components we install in our business on a daily basis.
Effective heat transfer systems require quality components and proper installation. Given that no two homes are the same, there is no one-size-fits-all solution to heat transfer systems. This is why we place a strong emphasis on customised solutions and after-sales support to help you with installing your system.
All of our kits include:
- Personal installation maps tailored to your home.
- One-on-one conversations to help us understand your home, your heat source, and what you are after, so that we can recommend the best product for your needs.
- One-on-one telephone and/or FaceTime conversations to help you with installing your system.
- Installation photos and videos outlining best practices and things to avoid.
Our focus is on premium products and expert advice to create ventilation systems that actually work.
Why Premium Components Matter
Almost all heat transfer systems use poor quality fans and thinly insulated duct. This leads many people to believe that heat transfer systems do not work.
When a heat transfer system is installed properly, this could not be further from the truth.
Fans
- Our 200mm EC motor centrifugal fan transfers up to 1,015 m³ of air per hour. This is a large volume of air compared to some fans which only transfer 223 m³ of air per hour. Destination rooms are often very cold. When only a small amount of heat can be transferred, it is unlikely to make a difference.
- Our EC motor centrifugal fans are infinitely speed controllable. The fan speed is directly proportional to the size of the adjustment you make on the speed controller. Many fans are only single speed. Every heat source is different and every house is different. Precise speed adjustment allows a heat transfer system to be matched to its surroundings. Speed adjustment allows a heat transfer system to move a small amount of air at times when the heat source is not operating.
- Our 200mm EC motor centrifugal fan makes only 39dBA noise at 50% fan speed. This is very quiet compared to some single speed fans which make 51dBA noise when operating. Heat transfer systems work best when they are operating all the time. This means they are often operating at night. A quiet fan with controllable air flow is less likely to disturb your sleep.
- Our 200mm EC motor centrifugal fan uses only 22 W at 50% fan speed but still transfers 650 m³ of air per hour. This is very energy efficient compared to some single speed fans which use 193 W when operating. Heat transfer systems work best when they are operating all the time. An energy efficient fan will save a lot of money over the long life of the system.
- Our EC motor centrifugal fans can operate in temperatures up to 60°C and are rated to 80°C when not in use. This is a high operating temperature compared to some fans which have a maximum air temperature of 45°C. The purpose of a heat transfer system is to transfer hot air. Heat transfer systems are often installed in roof cavities which are hot during the day in summer.
Duct
- Green Duct is available insulated to Rm1.5 surrounded by 90mm of insulation. This is 150% more thermally efficient than duct insulated to Rm0.6 surrounded by 40mm of insulation. High quality insulated duct is essential for minimising heat loss if you want your heat transfer system to work well.
- Green Duct's inner core has a steel rib for strength and is not prone to glue failure. This is much stronger than cheaper duct that is prone to collapsing and tearing. Insulated duct is often mistreated by people moving through a roof space. High quality insulated duct will last a long time and is more likely to withstand poor treatment.
About Heat Transfer Systems
Rooms that get more sun or have a heat source are generally warmer than those without. With a heat transfer system however, you can ensure other rooms in your home are as warm and cosy as your sunlit lounge.
Heat transfer systems balance the temperature in your home by evenly distributing energy from a heat source, such as a fireplace or heater, throughout your home.
We can arrange a standalone heat transfer system to suit any price point. Our heat transfer systems use components that have been carefully selected for their purpose. We use only the best components to ensure that you get superior performance, proven reliability and lower operating costs. We have a range of Australian made duct options and offer German made centrifugal fans with both AC and EC motors.
AC Motors vs EC Motors
AC motors are cheaper than EC motors but still provide excellent performance. They are very quiet during operation and move large volumes of air through ducting. They operate at one fixed speed where they are most efficient.
In real world use, EC motors provide even higher air flow, are extremely quiet during operation, are capable of silent operation at reduced fan speeds, have smoother fan rotation, and consume almost no power at reduced fan speeds. EC motors have adjustable speed and are very efficient at all speeds.
AC Motor Centrifugal Fans
Our 150mm AC motor centrifugal fans have the following qualities:
- Single speed
- Approximately 560 m³/h air flow and 52 W power usage
- Very low noise during operation
- R2E190 motor manufactured by ebm-papst in Germany
- Custom Australian made fan housing
- 5 year warranty
- IP 44 protection rating.
Our 200mm AC motor centrifugal fans have the following qualities:
- Single speed
- Approximately 865 m³/h air flow and 85 W power usage
- Very low noise during operation
- R2E220 motor manufactured by ebm-papst in Germany
- Custom Australian made fan housing
- 5 year warranty
- IP 44 protection rating.
EC Motor Centrifugal Fans
Our 150mm EC motor centrifugal fans have the following qualities:
- Variable speed
- 310 m³/h air flow and 10 W power usage
- 445 m³/h air flow and 24 W power usage
- 580 m³/h air flow and 49 W power usage
- 735 m³/h air flow and 83 W power usage
- Extremely low noise during operation
- Can be silent at reduced fan speeds during operation
- R3G190 motor manufactured by ebm-papst in Germany
- Custom Australian made fan housing
- 5 year warranty
- IP 54 protection rating.
Our 200mm EC motor centrifugal fans have the following qualities:
- Variable speed
- 505 m³/h air flow and 10 W power usage
- 650 m³/h air flow and 22 W power usage
- 795 m³/h air flow and 40 W power usage
- 1,015 m³/h air flow and 84 W power usage
- Extremely low noise during operation
- Can be silent at reduced fan speeds during operation
- R3G220 motor manufactured by ebm-papst in Germany
- Custom Australian made fan housing
- 5 year warranty
- IP 54 protection rating.
Standard Insulated Duct vs Green Insulated Duct
High quality insulated duct is essential for minimising heat loss if you want your heat transfer system to work well. Despite this, almost all heat transfer systems use poor quality and poorly insulated duct, which leads many people to believe that heat transfer systems do not work.
Fresh Ventilation conducted the following experiment in the Southern Highlands. The incoming air from the heat source was 32°C, the air in the roof space where duct was located was 5°C, and the transfer length was 18 metres. The air temperature was then measured at the destination. The air exiting from uninsulated duct was 16°C, a loss of 16°C. The air exiting from Rm0.6 standard insulated duct was 21°C, a loss of 11°C. The air exiting from Rm1.5 green insulated duct was 31°C, a loss of only 1°C.
Standard Insulated Duct
- Available insulated to Rm0.6 and Rm1.0.
- Made in Australia.
- Fire rated.
- Complies to AS 4254.
- Inner core has a copper coated spring steel wire designed for applications that require less rigid insulated duct.
- Insulated with polyester fibre.
- Operating temperature range: -10°C to +80°C.
Green Insulated Duct
- Available insulated to Rm1.25 and Rm1.5.
- Made in Australia.
- Fire rated.
- Complies to AS 4254.
- Inner core has a steel rib for strength.
- Inner core is not prone to glue failure.
- Insulated with polyester fibre.
- Outer jacket is reinforced with cotton for strength.
- Operating temperature range: -10°C to +80°C.
Included Items
| 1 Room Kit | 2 Room Kit | 3 Room Kit | 4 Room Kit | |
| 150mm AC/EC Centrifugal Fans (Made in Germany) | 1 | 1 | - | - |
| 200mm AC/EC Centrifugal Fans (Made in Germany) | - | - | 1 | 1 |
| 150mm White Plastic Cone Diffusers | 2 | 3 | - | - |
| 200mm White Plastic Cone Diffusers | - | - | 4 | 5 |
| 150mm Insulated Duct (Made in Australia) | 12 m | 18 m | - | - |
| 200mm Insulated Duct (Made in Australia) | - | - | 24 m | 30 m |
| Duct Tape | 30 m | 60 m | 90 m | 120 m |
| Hanging Tape | 50 m | 50 m | 50 m | 50 m |
| 150mm Insulated Branch (Made in Australia) | - | - | - | - |
| 150mm Insulated Splitter (Made in Australia) | - | 1 | - | - |
| 200mm Insulated Branch (Made in Australia) | - | - | 1 | - |
| 200mm Insulated Splitter (Made in Australia) | - | - | 1 | 3 |
| On/Off Switch with Wall Plate (AC Motors) | 1 | 1 | 1 | 1 |
| 0-10V Speed Controller with Wall Plate (EC Motors) | 1 | 1 | 1 | 1 |
| 5 Years Warranty | Yes | Yes | Yes | Yes |
| Custom Installation Map (Provided After Purchase) | Yes | Yes | Yes | Yes |
| One-On-One Technical Advice by Phone/FaceTime (Provided After Purchase) | Yes | Yes | Yes | Yes |
| Installation Photos/Videos Outlining Best Practices (Provided After Purchase) | Yes | Yes | Yes | Yes |
Additional quantities of individual items can be purchased in our store.