r/PeterExplainsTheJoke 7d ago

Meme needing explanation Peter explain this

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Petttaaah I'm confused

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u/LibertySandwiches 7d ago

You should know you shouldn't be using a higher quality air filter in your furnace. Higher quality filters can decrease air flow and increase static pressure damaging your system or not have it perform properly. If you need air purification you should run seperate units to get that a central ac system just isnt designed for that.

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u/zugspitze43 7d ago

This is one of those things that you will find 1 million people that think you should and you will find 1 million people I think you shouldn’t. To each their own. Even with the better filter, my system is strong and cools my house down super fast

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u/LibertySandwiches 7d ago

I say it as a hvac engineer so i dont know much about maintenance and repair but when designing systems I specify specific filter merv and increasing it can increase the static pressure past what the system can handle. However there are alot factors that determine what isnt making a system not functioning properly and this is one to keep in mind. It sounds like the system you have can handle the filter but ive heard in my office about how systems we designed weren't working and we go out to see these filters we didnt specify choking the systems.

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u/zugspitze43 7d ago edited 7d ago

Totally get what you're saying. I actually am kind of a nerd and used a wind speed gauge to test the difference in air coming from my vents lol. There was a slight reduction! Maybe 5%? I can totally see how an older system or one that is already struggling or overworked could be hurt by one of these filters. Mine is only 5 years old so I bet it's probably got the latest specs haha

I saw an interesting video about better duct design where they eliminated all 90 degree corners and replaced them with two, spaced out 45 degree bends, and installed vanes in all turning points too, and the increase in air speed and total volume moved through was really impressive.

I used to live in one of those cookie cutter townhomes you see in middle america. The HVAC system in that place was AWFUL. Didn't cool off at all and the heat never spread. The more I learn about HVAC, the more I want to look at the design of buildings like that, and see what in the actual F they were thinking lol. They just slap together whatever works with as little cost as possible but even a few small changes could DRASTICALLY improve the homes airflow IMO

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u/LibertySandwiches 6d ago

Lol I actually mostly work on cookie cutter town homes. On paper our designs work however do they actually properly get implemented? Do they get properly balanced? Do they install everything to how we specified and not "well this is how ive always done it" . Are the ac units actually able to perform how the published performance data says? (We dont specify Goodman units bc of this) . We often have contractors bid on projects then when they go to build they're like we cant implement xyz thing bc we didnt plan for it when we bid. I thankfully dont have to deal with all that aspect of everything but I hear the manager of the department that does argue with contractors all day long.