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What do people think of this?
Comments
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Netexporter said:Correction a fan will not increase the heat output of a radiator
Yes it will. Have you never heard of wind-chill? This is the opposite.
No lol you can't create extra heat you can create a feeling of increased heat directing, as I said the heat into your face etc.0 -
MultiFuelBurner said:Netexporter said:Correction a fan will not increase the heat output of a radiator
Yes it will. Have you never heard of wind-chill? This is the opposite.
No lol you can't create extra heat you can create a feeling of increased heat directing, as I said the heat into your face etc.0 -
Netexporter said:MultiFuelBurner said:Netexporter said:Correction a fan will not increase the heat output of a radiator
Yes it will. Have you never heard of wind-chill? This is the opposite.
No lol you can't create extra heat you can create a feeling of increased heat directing, as I said the heat into your face etc.
Therefore using more power.....ok I give up please show me how to make heat out of nothing.in the home.1 -
You are transferring more heat from the radiator into the room. Yes, the boiler will have to supply more heat to make up for that. However, as the return water is cooler, it will do that more efficiently. A win-win.3
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Netexporter said:You are transferring more heat from the radiator into the room. Yes, the boiler will have to supply more heat to make up for that. However, as the return water is cooler, it will do that more efficiently. A win-win.4.8kWp 12x400W Longhi 9.6 kWh battery Giv-hy 5.0 Inverter, WSW facing Essex . Aint no sunshine ☀️ Octopus gas fixed dec 24 @ 5.74 tracker again+ Octopus Intelligent Flux leccy0
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they don’t blow cooler air across the fins
I didn't say they did, although the air from near the floor will be cooler. A faster air-flow than the natural convection rate will transfer more heat to the room. You could increase the natural convection rate by increasing the flow temperature of the boiler, but that will reduce the efficiency of the boiler.
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Netexporter said:Still blowing air upwards though,
The point is that increasing the airflow will increase the output of the radiator. Blowing the air sideways isn't going to make a huge difference as the warmer air will rise, so you won't feel it directly.
I imagined blowing the air sideways before it can go straight up would help people feel a bit more benefit from it before it then rises anyway, but that's just speculation as I don't know enough about this to work out what would actually happen.0 -
The laws of thermodynamics (as they currently stand) apply.0
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And your point is?0
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You are quite correct @Netexporter. If you increase the airflow then the radiator gives out more heat more quickly (and of course the boiler has to replace it) it's the same as effectively increasing the capacity of the radiator. It doesn't matter whether the increased airflow is by convection or by fans, it's just quicker by fans.
For the doubters, simply compare the BTU output of a type 21 and type 22 radiator where convection just removes more heat from the radiator due to increased surface area thus cooling the radiator more quickly which is exactly what adding a fan is doing - removing the heat more quickly.
https://www.toolstation.com/kudox-premium-type-21-steel-panel-radiator/p58138 2727BTU
https://www.toolstation.com/kudox-premium-type-22-steel-panel-radiator/p66309 3604BTU
Other brands are availble of course!3
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