Please visit this website for more detailed information about the product: www.holtop.com/eco-pair-single-room-energy-recovery-ventilator-erv.html. If you have any further questions, you can send an email to sales@holtop.com. We would be more than happy to assist you with any inquiries you might have.
Any evidence before after in real life?
A breathing system of a fan 😮😮😮
How if outside the house is hotter than inside?
how its different from hvac
Hot air going away is hot air thrown away. Open a window and close it, same loss. Made up with furnace
Modified exhaust fan
Some people will believe anything! Hahahaha
how much
Please visit this website for more detailed information about the product: www.holtop.com/eco-pair-single-room-energy-recovery-ventilator-erv.html. If you have any further questions, you can send an email to sales@holtop.com. We would be more than happy to assist you with any inquiries you might have.
If it has plastic parts, most likely it will send micro plastics in the air.