logoalt Hacker News

alt22702/20/20252 repliesview on HN

You seem very proud of your home ventilation system, and very keen to tell us all about it. Im not surprised you dont really care about the power usage to achieve that. Its quite telling that your alternative that you suggest is more power hungry air purifiers.

I however will stick with my house which uses zero external grid power to heat or ventilate it, and I can be happy in the knowledge I am not putting any drain on the national power grid for my comfort.

Also when we have power outages, which is quite often, it makes no difference to my home whatsoever.

Its OK, we can agree to disagree. You are not alone in thinking electricity is an infinite resource. Lets just keep on building houses that require more and more power to run and see where that gets us!


Replies

lm2846902/23/2025

You didn't take into account that a well built house reduces heating and cooling demands by more than 70%. We're talking hundreds of kwh a year, if not thousands, for each houses

You don't need a power grid to run what basically amounts to a bathroom fan. And guess what? Even if you're completely out of electricity you can still open the windows.

The bottom line is that at best you save 70%+ of heating/cooling energy and at worst you're just back to square one temporarily

amluto02/20/2025

> Im not surprised you dont really care about the power usage to achieve that. Its quite telling that your alternative that you suggest is more power hungry air purifiers.

Huh? I'm literally explaining, with actual measured numbers, how the ventilation system uses less power. I do care about it!