Fresh outdoor air all year round.
The OpenERV TW4:
Provides fresh air during hot or cold weather, without the addition of, or loss of heat from, the dwelling.
Provides a reliable, regulated supply of fresh air.
Is easy to retrofit into any area of any building, even buildings with no ventilation system, or electric heat.
Features these core performance figures:
Very high real-world energy recovery efficiency - 91% sensible, 45% average latent heat recovery.
High fresh air flow rate capability - 45 CFM net actual fresh air in heat recovery mode. 120 CFM in supply/exhaust only mode.
Extremely quiet - 0.2 Sone (~15 dBA).
Provides a return on financial investment >2x that of photovoltaic panels in many climates like Ottawa, Canada,
~10x greater rate of return on investment than typical, conventional ductless ERV units. This is due to the lower purchase price, lower install cost, higher energy savings, and lower net long term cost of ownership.
Doubles as a very quiet, high pressure reversible exhaust/supply fan (120 CFM).
Optional True-HEPA filter, using widely available, standard filters (50 CFM with filter in supply mode)
Designed and built to last for the very long term --> 25-50 years, for greatly superior return on investment.
Can be configured to work with common home automation systems, including Google Home, Alexa and Home Assistant. This can be used to automatically turn it on with humidity, time of day, etc.
Can be controlled with your phone or over the internet.
Very low electrical energy consumption - 2 watts on low, and 6 watts at maximum power.
Effectively reduces CO2 levels, reduces transmission of airborne pathogens and improves Indoor Air Quality in all metrics.