- How does the PuriFresh® ERV mount in a window?
The PuriFresh® ERV is a Window Mounted Energy Recovery Ventilator. The PuriFresh® Window
Mounted ERV mounts in a double hung window much like a window mounted
air-conditioner, however, it is much lighter and smaller that the
typical window mounted air-conditioner. Unlike the typical window
mounted air-conditioner, the PuriFresh® Window Mounted ERV
does not have expandable side panels to fit any width window. Instead,
two corrugated plastic sheets are provided which are cut to the
appropriate width to fit the specific widow. This provides better
insulation in winter as well as a better air seal.
- Is a brace needed for window installation?
No brace is needed. If you have double hung windows in
your home, the PuriFresh® ERV is a truly economical,
easy, do-it-yourself way to provide high quality Energy Recovery Ventilation
to your home!
- Can the PuriFresh® ERV be permanently mounted through
a wall?
Yes! View the manual for more details.
- The fresh air blows straight out of the unit. Can I change its direction?
Plastic deflectors, which
attach magnetically to the PuriFresh® ERV, are available at
many hardware stores. These are
manufactured for use on the air registers in homes with force air
heating or AC systems. If you
are having difficulty obtaining these, let us know, and we will be happy
to send you one at a reasonable price.
- How are the Energy Transfer Sections cleaned?
The Energy Transfer Sections
are cleaned by immersion in warm water, containing any mild dishwashing
liquid. After soaking, they are
rinsed by immersion in clean warm water. After drip-drying on a drain board, they can be returned
to the unit where complete drying will occur while the unit runs.
- What is the Energy Transfer Section medium made of?
The active medium is made of
a thin plastic film substrate.
Silica gel powder is permanently bonded to the film on both
sides. Silica gel is harmless,
and, in any case, it does not enter the air stream during use.
- Why do I need ventilation?
Air pollution from volatile compounds is much higher indoors. These
volatile compounds include radon gas, formaldehyde, solvents from
cleaning supplies and beauty supplies, organic compounds emitted by
carpets, furniture, paint, insulation, linoleum, vinyl, electronic
equipment, etc. Ventilation is
also needed to prevent excess humidity in winter, which can lead to dry
rot and mold damage.
- How do I know my ventilation is inadequate?
Some signs that you need
ventilation in your home are the following: If your home smells, or if you use air fresheners or air
purifiers to reduce or mask odors.
If there is moisture condensation on windows on a cold winter
day.
- My PuriFresh® ERV still does not reduce indoor
humidity enough in winter. What
can I do?
In some cases, energy
recovery does not allow enough moisture to escape the home in
winter. We have Heat Transfer
Sections, which are not desiccant coated. Use those in winter, the Energy Transfer Sections the rest
of the year. Contact us to
obtain a set. It is very
important to solve your moisture problem to prevent dry rot and mold, so
don’t delay.
- I live where there are air pollution alerts. Should I still ventilate?
Yes, but turn off ventilation
when there is a high pollution
alert and they recommend that you stay indoors. If pollution peaks at certain hours
of the day, put the unit on a timer so that it is off for those
hours. That will actually reduce
levels of outside pollutants in your home compared to no
ventilation. Fight for clean
air! Remember, all inside air
ultimately comes from outdoors.
- Are the Energy Transfer Sections interchangeable with the HEPA
Heat Filters of the PuriFresh® HEPA/HRV?
Yes! If you have a PuriFresh®
HEPA Filtered Heat Recovery Ventilator and would like to convert it to
an Energy Recovery Ventilator, contact us for a special order of four
Energy Transfer Sections.
- Is the PuriFresh® Energy Recovery Ventilator available
with defrost?
No, not at this time. Frost typically only begins to form
(on the outside of the Energy Transfer Sections) when the temperature
drops to around 0° F. The unit
will not be damaged, since the moving parts are all on the warm and dry
side of the Energy Transfer Sections.
- Will there be a PuriFresh® HEPA
Filtered Energy Recovery Ventilator? Yes!
Contact us for details.
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