Igor's Blog

Not long ago I built a stunning TV unit out of recycled hardwood. One of the main functional features of this unit was keeping dust out so naturally it was as enclosed as possible. Though the unit looked great, I quickly found that it was not usable the way it was built if both the AV receiver and the PS4 are running. There was no air circulation so everything got super hot inside.

For a while I was forced to open the glass doors on my TV unit whenever I wanted to play my PS4. This wasn't practical long term so I decided to do something about it. I ordered an 80mm 65 CFM fan that ran on 5V meaning I could have it connected to one of the PS4 USB ports.

This fan worked like a charm, but it sounded like a jet engine taking off! Back to the drawing board and I ordered a 12v temperature controlled low noise 31 CFM fan. This fan can move only about 50% of the volume of air as the other fan but it's advantage was how quiet it would run.

Here are the results that I collected of playing Witcher 3 for 40 mins with aircon running at 23C. Results are: without the fan, with the 65 CFM fan and the 31 CFM fan.

It's clear that without a fan the temperature just keeps on rising and rising. It's about a 10C difference with the fan vs without. Over a 40 minute period that's quite significant considering aircon is running too. The loud fan (65 CFM) is definitely best for this job, the temperature only deviated by 1C while it was running. The quiet fan (31 CFM) is not as good at regulating the temperature however it still keeps it much lower than without a fan at all and you can't hear it. Because the quiet fan I used has a temperature sensor, it only ramps up its speed when the temperature goes up, this can be seen by the jumps in the blue line at around the 500 second mark.

So lets see what I actually did. In a nutshell I fitted a fan to the back of the TV unit, facing the fan to draw air out of the unit. This causes cool air is to be sucked in around the gaps at the front of the unit doors while pushing hot air out from the back.

This was the first fan. It's a no-brand 80mm 5V fan. I used an old USB cable to hook it up.

IMG_0768.jpg IMG_0769.jpg


I used two grilles, one inside and one outside. This is more for the look than anything functional. A hole was cut in the centre of the top shelf to fit the fan, that's where the AV receiver and PS4 sit.

IMG_0770.jpg IMG_0772.jpg


The second fan was a more expensive Arctic Cooling F8 TC model. This is a 12V fan so I needed to use an external power adapter, which is no biggie as that's plugged into the Belkin Conserve power board. This board turns the fan (and the TV, PS4, etc) on only if the AV unit is powered up. The beauty of this fan is it designed to be super quiet and to respond to temperature changes by speeding up when temperature rises, then dropping down it's spin once the temperature is lower. This was a perfect fit for my needs.

IMG_0777.jpg IMG_0778.jpg


So there you go, adding a fan really does reduce the temperature inside a TV unit, it's not just for computer cases! It will also mean that the PS4 itself runs quieter as it won't need to spin up its own fans. Further this will extend the life of your electronics by not overheating them.

Definitely worth doing!


comments powered by Disqus
Other posts you may like...
Programming, DIY, Games, Hacks, and Tech

Recent Blog Posts

Converting a CSV file containing commas in quotes to a pipe separated file using Awk and Bash

How to get Facybox gallery popup to work for images with dynamic URLs

jQuery UI Photoboxr plugin updated to version 0.2

Learn How to Add Disclaimer to All Outgoing Emails in Office 365

How to securely host your web site for free with Google Cloud and CloudFlare (part 3)

How to securely host your web site for free with Google Cloud and CloudFlare (part 2)

How to securely host your web site for free with Google Cloud and CloudFlare (part 1)

Beware of the subtle difference in date format strings between MySQL and SQLite

Postman reporting Unexpected 'N' error in response body

Adding extra shelves to the Ikea Detolf display cabinet

Recent Galleries

Space Food - Chocolate Ice Cream with Chocolate Chips

Legeod Star Wars AT-DP kit

DIY spare parts computer build with a RAIDMAX Anura case

Fake 'Lepin' brand Lego packaging

Hardwood garden bench with clear resin void filler

Fixing a 3D printer extruder that stopped heating up

Easily increase disk space in a Lenovo Ideapad 100S 14" laptop with an M.2 SSD

Making a multi-piece 3D printed solder spool holder stand

DIY indoor apartment grow light wiring

Good Friday Electronics fun Easter Bunny LED PCB Kit IBEABU-01.0

My Other Web Sites

Igor and Elise's Travels
Riverside Expressway Cam
300 George St Blogumentary

My Online Tools

UUID to OID Converter
Guru JSON-RPC Tester
Extrudifier Object Designer
Travel ┬ÁBlog

Blogs and Friends

Matt Moores Blog
Georgi's FlatPress Guide
Perplexing Permutations
The Security Sleuth
Ilia Rogatchevski
Travelling Fairy

Blog Activity

Blog Activity
Please follow me for more great content!
Don't show this again