UFH or not ?

[ProDave]

21 minutes ago, Kelvin said:

The Musical Fidelity amp has a large heat sink on either side of the case and they get very hot, almost too hot to touch. 

I often wonder why "true hifi" amps get so hot (and waste so much power)

 

You will probably cringe when I describe my "poor mans" surround sound system.  It's a Sony DVD player with built in surround sound.  The DVD player never gets used, I don't even know if it still works but it takes Audio in from the tv and decodes the surround sound and drives the 5.1 speakers while running as cool as a cool thing thus not wasting much power.

 

We actually have 2 such systems, the one in the other room is Panasonic, that too runs very cool.  Both seem to produce good sound.

[Kelvin]

A few years ago I tested the temperature at various points on the amp and the heat sinks peaked at 47°C and the core components in the case averaged around 37°C. I’ve also got a tube amp and the tubes get much hotter than that. 
 

My surround sound system has 13 speakers and a sub-woofer. 
 

Getting back to the original question. Heating a high performing house is generally the easy bit. Cooling them is a bit harder and needs more thought. 

[ProDave]

And I don't think it has been mentioned in this thread yet, that with a well insulated air tight house with mvhr, you will not need heating upstairs even up here in the cold north.

[Kelvin]

7 minutes ago, ProDave said:

And I don't think it has been mentioned in this thread yet, that with a well insulated air tight house with mvhr, you will not need heating upstairs even up here in the cold north.

This is true although I would recommend heating the upstairs bathroom floor with an electric mat. 

[Alan Ambrose]

@Kelvin - are you suggesting we should all drop UFH in favour of big-arsed HIFI systems? 

[JohnMo]

6 minutes ago, Alan Ambrose said:

@Kelvin - are you suggesting we should all drop UFH in favour of big-arsed HIFI systems? 

It would be a noisy world when the temps to sub zero - what CoP do you get?

[Kelvin]

15 minutes ago, Alan Ambrose said:

@Kelvin - are you suggesting we should all drop UFH in favour of big-arsed HIFI systems? 

😂 maybe not but I was listening to Miles Davis earlier on vinyl which is a good use of electricity. Music and heat. I also have a valve guitar amp. That just produces heat 😂 

Edited October 27 by Kelvin

[SteamyTea]

I still don't have a TV, or a 'sound system'

I got rid of the TV in 1994.  If it was a modern one that has a 1 W standby power draw, then I have saved about 300 kWh.

[JohnMo]

10 hours ago, SteamyTea said:

saved about 300 kWh.

A whole £2.50 per year. Think I will keep the TV.

[ProDave]

12 hours ago, Kelvin said:

I also have a valve guitar amp. That just produces heat 😂 

That reminds me of when I just started work.  You could never find an oscilloscope in the winter as they had all been borrowed and were sitting on the floor somewhere to keep someones office warm (Tek 500 series valve scope's)