Ductless Ventilation Revolution? A Look at the Vents-US TwinFresh Expert Ductless ERV

Rise
Last Updated: Oct 27, 2022

Many homeowners assume that retrofitting a ventilation system in their older home means installing ductwork and hiding large appliances in their attic, basement, or utility room. Home ventilation isn't what it used to be. New ductless ventilation units on the market, like the Vents-US TwinFresh Expert Ductless ERV, can ventilate, dehumidify, and bring in fresh air with just a small hole in the home's envelope.

Table of Contents

  1. What is in ERV or Energy Recovery Ventilator?
  2. What components are included in the box of the TwinFresh Expert?
  3. What does “ductless” mean?
  4. How does the Vents-US TwinFresh Ductless ERV work?
  5. Does the TwinFresh Expert heat and cool?
  6. How big of a room will the TwinFresh Expert serve?
  7. Is the TwinFresh Expert a dehumidifier?
  8. How loud is the Vents-US TwinFresh Expert Ductless ERV?
  9. Does it work?

What is in ERV or Energy Recovery Ventilator?

An ERV is a home ventilation device that improves air quality without sacrificing home energy efficiency. It continually runs to supply fresh air, ventilate stale air, and manage humidity. The ERV captures heat and energy from incoming or outgoing air, depending on the climate and season, to reduce the load on your home's heating and cooling system.

What components are included in the box of the TwinFresh Expert?

The Vents-US TwinFresh Expert Ductless ERV comes with the remote control, the outer ventilation hood, the inner control panel with air shutters, the air duct, and the ceramic core heat exchanger with MERV filters. The unit can be plugged into an outlet or hard-wired by an electrician.

$709
Vents TwinFresh Comfo RA1-50-2 Ductless Energy Recovery Ventilator
The Vents-US TwinFresh Comfo RA1-50-2 Ductless Energy Recovery Ventilator is a single-room ventilator designed to provide an efficient solution for decentralized, energy-saving ventilation in various settings. Equipped with a high-tech ceramic energy accumulator, reversible EC ventilator, and integrated automation, this ventilator operates silently while effectively cleaning the air with total filter class G3. Thanks to its special mounting plate, it's easy to install and service, and with updated controls, it offers extended functions, wireless control, and operation mode switches on the ventilator housing. The Vents-US TwinFresh Comfo RA1-50-2 Ductless Energy Recovery Ventilator is ideal for those seeking an easy and effective way to ventilate a single room up to 500 square feet. It's perfect for use in homes, cottages, and public and commercial premises, providing efficient supply and exhaust ventilation with a low energy demand ranging from 4.5 to 7 watts. With continuous operation and no condensate generation, this ventilator is a reliable and convenient option for all your single-room ventilation needs.
$818
Vents TwinFresh Expert RA1-50-2 Ductless Energy Recovery Ventilator
The Vents-US TwinFresh Expert RA1-50-2 Ductless Energy Recovery Ventilator is designed to supply and exhaust single-room ventilation up to 30 CFM, making it perfect for rooms up to 500 sq. ft. The unit features a high-tech ceramic energy regenerator with a maximum heat recovery efficiency of up to 93%, ensuring that you get the most out of your ventilation system while minimizing energy consumption.The TwinFresh Expert RA1-50-2 also features reversible DC motors with a low energy demand of 3.61 W and a safe voltage of 12 V. With an integrated humidity sensor or connection to an external sensor, the unit provides a comfortable microclimate, while the integrated control system ensures easy operation.The ventilator operates silently, producing only 0.3 Sones of noise, and is easy to mount and maintain. It also comes equipped with a MERV 5 class filter for air cleaning, with the option to upgrade to MERV 14 filter for even greater filtration performance. Rated for continuous operation, the unit is frost- and condensate-free, ensuring reliable operation even in extreme weather conditions.
$168
Vents Solar Powered Ductless Fresh Air Wall Vent PSS 102
The Vents Solar Powered Ductless Fresh Air Wall Vent PSS 102 is an innovative solution designed to provide a continuous supply of fresh air to residential and commercial spaces. It functions by delivering fresh air without the need to open windows, effectively blocking out dust and street noise. The internal fan outputs up to 11 CFM during the day using solar power, and at night, it reverts to passive ventilation. Ideal for homes, tiny homes, cottages, and office buildings, it is typically installed in exterior walls above or near windows, ensuring a steady flow of fresh air while maintaining a quiet indoor environment.
$1,118
Vents TwinFresh Expert RW1-85-2 V.2 Ductless Energy Recovery Ventilator
The Vents TwinFresh Expert RW1-85-2 V.2 Ductless Energy Recovery Ventilator is the most powerful model in the TwinFresh lineup, delivering a maximum output of 50 CFM in ventilation mode. This state-of-the-art ERV ensures a continuous supply of fresh, filtered air, reducing energy costs and enhancing indoor air quality. With wireless functionality, you can control your TwinFresh 85-2 from anywhere using the IOS/Android app. Designed for easy installation with a minimum wall thickness of 5 7/8", it is perfect for multi-family retrofits or new builds. This ETL certified unit features a 70% efficient ceramic core, MERV 5 filtration, silent operation at 0.5 sones, and the ability to chain multiple units for larger rooms.
$70
Vents MERV 14 Filter for TwinFresh Expert RA1-50-2
The Vents MERV 14 Filter for TwinFresh Expert RA1-50-2 significantly enhances air filtration, providing nearly three times the efficiency compared to the stock filter. Ideal for installations where air quality is crucial, this filter captures up to 84% of particles in the 1.0-10.0 micron range. It is designed for easy installation and maintenance, ensuring optimal performance with minimal effort.
$65
Vents MERV 14 Filter for TwinFresh Comfo RA1-50-2
Adding a MERV 14 filter to your RA1-50-2 Comfo ERV will increase filtration close to 3x compared with the stock specification. Perfect for installations where intake air quality is a concern. The Vents US MERV 14 filter will trap up to 84% of particles in the 1.0-10.0 micron range. Easy to install, easy to clean.
$1,215
Vents MICRA 60 Single Room HRV
The Vents MICRA 60 Single Room HRV offers an effective single-room heat recovery ventilation solution, ideal for larger spaces like apartments or small commercial settings. What sets it apart is its hassle-free installation; you won't need to connect it to air ducts. This makes it a perfect choice for straightforward and efficient heat recovery in individual rooms. The Micra 60, with a CFM of up to 35.3, features energy-efficient EC motors, a powder-coated metal case, and a user-friendly controller with three modes. Optional MK 2 Mounting Kit sold separately (strongly recommended).
$1,870
Vents MICRA 150 Single Room HRV
The Vents-US MICRA 150 Single Room HRV features a cutting-edge polystyrene plate counter-flow core, boasting an impressive sensible recovery efficiency of 85-88%. This advanced system incorporates energy-efficient EC fans, consuming a mere 8 to 51 watts of power, which helps minimize operational costs. Designed for rooms up to 1200 sq ft, the MICRA 150 can efficiently provide up to 71 CFM, maintaining a discreet 1-1.8 Sones for a quiet working environment with air filtration from a built-in MERV 7 filter. Please note, the mounting kit and external hood are sold separately under the MK2 Micra Mounting 150 Kit.
$998
Vents TwinFresh Expert RW1-50-2 Wi-Fi Ductless Energy Recovery Ventilator
The Vents-US TwinFresh Expert RW1-50-2 Ductless Energy Recovery Ventilator is WIFI enabled and designed to supply and exhaust single-room ventilation up to 30 CFM, making it perfect for rooms up to 500 sq. ft. The unit features a high-tech ceramic energy regenerator with a maximum heat recovery efficiency of up to 93%, ensuring that you get the most out of your ventilation system while minimizing energy consumption. Wifi app is available for download on both platformsThe TwinFresh Expert RA1-50-2 also features reversible DC motors with a low energy demand of 3.61 W and a safe voltage of 12 V. With an integrated humidity sensor or connection to an external sensor, the unit provides a comfortable microclimate, while the integrated control system ensures easy operation.The ventilator operates silently, producing only 0.3 Sones of noise, and is easy to mount and maintain. It also comes equipped with a MERV 5 class filter for air cleaning, with the option to upgrade to MERV 14 filter for even greater filtration performance. Rated for continuous operation, the unit is frost- and condensate-free, ensuring reliable operation even in extreme weather conditions.
$154
Vents MK2 MICRA 150 Mounting Kit
Vents MK2 MICRA 150 Mounting Kit is an essential accessory for anyone seeking a convenient way to install their Micra 150 HRV. The kit includes two 5-inch diameter, 19-inch long plastic air ducts, a durable metal external hood, and a paper master template. Designed for ease of use, this mounting kit ensures a secure and efficient installation, enhancing the performance of your Micra 150 HRV.
Vents-US TwinFresh Expert Ductless ERV

What does “ductless” mean?

“Ductless” means no ducting traveling the length of your wall, ceiling, or flooring. A ductless ERV unit needs just one hole in your home’s envelope, about 7 inches in diameter.

A single duct in the home's envelope performs all of the ERV functions

Through this hole, you place a single air duct that contains a ceramic heat exchanger and MERV filter. The inside wall contains the fan and control panel, and the outside wall has the ventilation hood. There are many advantages of going ductless, including:

A utility room in a passive house containing an ERV

A typical ducting system loses 25-40% of the energy put out by your heating or cooling system. Some beefier HRVs, those rated for high-performance homes like passive homes, can achieve impressive results at 80 to 90% efficiency. Still, those also come at a cost, and installation is much more involved than these ductless units.

How does the Vents-US TwinFresh Ductless ERV work?

In Regeneration Mode, the TwinFresh Expert removes stale inside air, brings in fresh air from outside, and even helps decrease the load on your home's heating and air conditioning systems.

The Twinfresh Expert has three modes: ventilation, boost, and regeneration.

The TwinFresh Expert operates on two cycles that are 70 seconds each. In cycle 1, warm stale air is extracted from the room. The air passes through the duct and past the ceramic exchanger, adding heat and moisture to the ceramic core, transferring up to 90% of the heat energy. After 70 seconds, the ceramic is warm, and the fan reverses direction.

In cycle 2, fresh intake of air from the outside flows through the ceramic core and absorbs the accumulated heat and moisture. The intake air brings the room to a comfortable room temperature and moisture level. Seventy seconds later, the ceramic exchanger is cooled down, the ventilator reverses direction, and the cycle is renewed.

Does the TwinFresh Expert heat and cool?

No, the TwinFresh Expert doesn’t heat or cool, but it stabilizes the intake air to room temperature to reduce extra energy load. Compare this to other ventilation sources like extraction fans and open windows, where you lose precious hot and cold air when you need it.

How big of a room will the TwinFresh Expert serve?

One unit will comfortably provide fresh, conditioned air for a 500 sq/ft room. Some homeowners use a handful of TwinFresh Experts that work together to ventilate their entire home. This unit shines as a standalone unit to bring fresh air into places that don’t usually get adequate ventilation, like bedrooms, basement living spaces, or detached offices.

Is the TwinFresh Expert a dehumidifier?

TwinFresh Experts on Regeneration Mode dehumidify the air to provide comfort. But if your room has a moisture problem with humidity levels around 60-70%, you need a stand-alone dehumidifier to tackle that problem.

How loud is the Vents-US TwinFresh Expert Ductless ERV?

When standing 10ft away from the TwinFresh Expert, it produces 0.2 sones at the slowest fan speed and up to 0.5 sones at the fastest. For comparison's sake, 1 sone is the sound of a whisper or a refrigerator running, so the TwinFresh Expert delivers as far as noise is concerned. It’s so quiet because it’s just a fan, filter, and ceramic core.

The exterior hood of the Vents-US TwinFresh Expert

Does it work?

The TwinFresh Expert has been third-party tested and certified by the Home Ventilating Institute and Intertek’s ETL Certification program. Just like any product, this only works if installed properly. Explore the Vents-US TwinFresh Expert Ductless ERV on the Rise store, where you can find detailed product info to help you make an informed buying decision.

Article By: Rise

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