(no subject)
Nov. 30th, 2007 08:06 pm![[personal profile]](https://www.dreamwidth.org/img/silk/identity/user.png){kind=small}
torkellYou never realise just how loud your desktop is, until you sit and use the laptop instead. Without the sound of all the fans and whine of failing hard disk bearings, you can hear other sounds...
The wind in the trees outside, the rain lashing against the window.
The low buzz/rumble of the kitchen extractor fan resonating slightly, varying up and down in pitch.
The gentle airy whirr of the laptop hard disk, with the odd click as it talks to itself.
The reliable tick...tick...tick...tick... of a small clock.
The 'tock' of a relay and the hum of a pump as the boiler preheats the heat exchanger.
What do you hear right now?
The wind in the trees outside, the rain lashing against the window.
The low buzz/rumble of the kitchen extractor fan resonating slightly, varying up and down in pitch.
The gentle airy whirr of the laptop hard disk, with the odd click as it talks to itself.
The reliable tick...tick...tick...tick... of a small clock.
The 'tock' of a relay and the hum of a pump as the boiler preheats the heat exchanger.
What do you hear right now?
no subject
Date: 2007-12-01 09:58 am (UTC)Re heat exchanger: combi-boilers have an internal heat exchanger for on-demand hot water (the central heating water is diverted through this). Some like to run for a few seconds every couple of hours to keep this warm so that you get hot water 'faster' when turning the tap on. It's slightly disconcerting when you first have one of these, and you hear it fire up for what seems like no reason.