What is Zehnder ComfoAir?
Zehnder ComfoAir Q provides outstanding comfort for a perfect indoor climate with maximum energy efficiency. Comfort ventilation unit with air volume of up to 350 m3/h at 200 Pa. Left or right hand unit configuration combined in one device, providing installation flexibility. Simple and quick installation.
How much is a Zehnder ERV?
The system we have, a Zehnder ComfoAir 350 Luxe with ten supply ducts and ten return ducts, with their respective registers, and two remote controllers (for the upstairs and downstairs bathrooms) costs about $6,000. The geo-exchange loop, which we did not include, adds another $2,000.
What is a Zender unit?
Zehnder provides high-efficiency Heat Recovery Ventilators (HRV) and Energy Recovery Ventilators (ERV) to ensure optimal indoor air quality and comfortable living for energy-efficient construction.
What does a Mvhr unit do?
Mechanical Ventilation with Heat Recovery (MVHR) is a continuous source of ventilation that extracts stale, moisture-laden air from a building and resupplies fresh, filtered air back in, resulting in a comfortable and condensation free environment all year round.
What size Mvhr do I need?
Generally, the capacity of a MVHR unit should be high enough to cover the nominal ventilation rate and at least 30% additional boost capacity. Ideally, the unit should run at 60-65% of its maximum capacity to work efficiently.
Is an ERV system worth it?
In sum, an ERV offers more consistent ventilation and better control over how much fresh air you’re getting. It’s also easier on your utility bills.
Does an ERV save money?
ERV systems save energy by reducing the need to cool or heat outside air. Although energy consumption from fans can rise after an ERV system installation, the savings in heating and cooling energy generally far outweigh any increases.
Are heat recovery units worth it?
If you are building a new house, there is no doubt that a heat recovery system (also called MVHR or HRV) can offer substantial savings on your heating bills over using normal bathroom fans and window ventilation but for us the number one reason is the dramatic improvement on indoor air quality (IAQ) improving the …
What size ERV do I need?
Traditional Method – Square Footage ERVs/HRVs are typically sized to ventilate the whole house at a minimum of . 35 air changes per hour. To calculate minimum CFM requirements, simply take the square footage of the house (including basement) and multiply by the height of the ceiling to get cubic volume.
Can you open windows with Mvhr?
Can I open the windows? Yes you can and the MVHR system will continue to operate in the background. However the efficiency of the MVHR will usually be slightly reduced, affecting its ability to keep the building warm in winter and cool in summer.
Is Mvhr expensive to run?
How much electricity does it use? Green Building Store domestic MVHR systems typically have 2 very small motors which push the air through your system. An MVHR unit like Focus 200 uses 22 Watts. This is similar to having a low energy light bulb on in your home, costing around 10p per day.
Are Mvhr systems worth it?
Should I run my ERV in the summer?
The answer depends on your home’s air conditioning system, your ERV wall control, the outdoor temperature and, most importantly, the outdoor relative humidity. As a rule of thumb, if you are more comfortable outside than inside your house, you should run your air exchanger in the summer.
How often should I run ERV?
Run your ERV on the intermittent on and off cycle all year long. If you have more people or odour causing activities put it on high until the air clears. In winter, monitor the humidity level in your home. If humidity drops below 35% you should turn up your humidifier or set your ERV to a lower setting.
Are heat recovery systems noisy?
However, it is worth remembering that no matter how high the quality of a heat recovery unit, it will generate noise, or “humming”, in the air duct and the housing. The noise levels which we manufacturers have to indicate is the acoustic power level of the device housing.