Passive House - Fresh Air System Install & Costs (Zehnder)
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- Опубліковано 28 вер 2020
- Hopefully you know the benefits of building a tight home. With a properly sealed envelope we can increase our control over the conditioned space. This control is equally important for the durability of the building, as it is for occupant comfort and health. Because of this, building tight also means we need to ventilate right. Continuous, balanced ventilation is key to maintaining comfort and indoor air quality while reducing our heating or cooling costs. This is done through an ERV or HRV. These units will help extract energy from exhaust air and this energy to precondition fresh air we are supplying back to the house. And we can filter this air, giving us the peace of mind that the air in our house will never be stale or dirty. This is far from the reality of living in a leaky home with many exhaust fans with little to no supply or balanced ventilation. In this video we’ll see why Matt chose to install a Zehnder ERV at his house, what is involved, and why it is probably easier to install than you may think.
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www.zehnderamerica.com/
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Huge thanks to our Show sponsors Polywall, Huber, Dorken Delta, Prosoco, Rockwool & Viewrail for helping to make these videos possible! These are all trusted companies that Matt has worked with for years and trusts their products in the homes he builds. We would highly encourage you to check out their websites for more info.
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www.Viewrail.com
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Ballpark prices, I'm so proud of you. Thank you.
This may be the premier ERV, but 85% efficiency is disappointing. For example, if it is 90 degrees outside and I want 70 degrees inside, then 85% efficiency means I will be constantly pumping in 73 degree air into my 70 degree house! The a/c would have to run constantly! As long as we can avoid drafts, allergens and moisture condensing in insulation, how is this ERV so superior to having a little air infiltration here and there?
I would strongly advise to think about the pipe cleaning right away : avoid tight 90 deg turn and regular acces to inlet pipes. Otherwise you might start to have allergy problems after 5 years. I m hvac engineer from Belgium.
Pretty accurate information Matt. Good job. Please note one important item. In the north it's so dry in the winter, people suffer from nose bleeds and static electricity so we humidify our homes and commercial buildings. As a result there is a lot of latent heat stored inside and we absolutely use ERVs. They are probably just as important or more than the south because of our high delta T from outside to inside. I thought I would share this info with you.
My man. Believes in God.
Would have been beneficial for them to discuss the kitchen exhaust and how the makeup is being handled. This is only the "fresh air makeup system" This really needs to work in conjunction with the rest of the HVAC system. Hopefully that can be covered in another show. Total cost is going to be significant.
I wish Canadian suppliers would stop sitting on there hands and start carrying the product you have available down there
Matt, curious about some things on this system. What is the monthly electric cost? What is the average filter replacement cost? How would this system work if you wanted to have a fireplace in your house? How would the possible smoke effect the system or would it damage the system?
180 CFM x .75w per cfm = 135w draw does this run 24/7? If so thats 1,182 kWh per year ~ $13/month per national average
@Matt -->Please follow up on your next videos how this system ties in with Bathroom exhaust and more importantly dryer (heat pump system) and stove vents (separate system to some how save energy, maybe?) Great videos, keep them coming.
Matt, thank you. About to build my own super tight house, and this i clearly the equipment to use. Glad it was a long video, so we had time to absorb it all.
Great video. It's awesome when the questions you have floating around in your head, are gradually answered throughout the video. So rare for presentations like this.
Great video Matt. Glad to see these really great systems getting the attention they deserve.
Using your videos to inspire my build up here in Canada :) thanks for the great FREE videos!
I'm sold, was basically going to do something similar, but this is the nicest kit I have seen. I'm a mechanic, and complete user friendly kits are the only way to go. I'm not sure I can afford to get the system right away, but I'm going to put it in my plans, and implement it when funds arise
Now that is a well thought and engineered system, I really like not having to have all the extra exhaust fans,penetrations,ducting,wiring,whining to turn on the fan!,and bugs. Great Vid Thanks
Thank you Matt. Good job. Have a blessed and safe week to you and your family.
Amazing stuff! I appreciate your honesty and openness shown in these videos documenting the "how-to" and the "why" of different technologies implemented into your house. Here in Europe, we also have certified passive houses and even premium passive ones with top energy-saving solutions such as CLT panels used in the assembly of exterior walls, floors, partition walls and roofs walls, passive house doors, passive triple-pane windows with weather-based electrically controlled blinds, wired/wi-fi weather stations with humidity, air pressure and light sensors, green energy from photovoltaic and solar thermal panels, integrated smart meters and KNX-based protocols for remote monitoring and controlling of a variety of appliances such as the geothermal heat pump, ventilation units, room temperature sensors, hydronic systems such as subfloor heating and radiant cooling ceilings, wall-mounted smart switchers and app-based interface for ambient light scenarios, CAT 7/8 structured cabling for connected IoT devices and much much more...there is a growing worldwide tendency to build smart and even energy self-sufficient premium passive residential properties, office buildings, schools, kindergartens and the like....I would love to see some of these smart house solutions integrated into your project. Stay healthy and keep up the good work!
I love watching this next level stuff, and it was clear that Matt was like a kid in a toy store watching this guy demo it
I can upvote for him. In China, even though it is better now due to many efforts, but a lot of family started to installing fresh air systems when renovating due to the bad outdoor air quality. The trend started about 5 years ago, and I think it probably going to become a trend in the US due to wild fires each year... We live in north cal, and we are most definitely going to install one next year.