Do the regs specify whether a neon is required on the FCU for a boiler, and separately on the feed for a gas hob and extractor unit?
- posted
15 years ago
Neon or no neon on FCU for boiler and hob
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- posted
15 years ago
On Thu, 29 Jan 2009 06:09:45 -0800 (PST) someone who may be clangers snipped-for-privacy@yahoo.co.uk wrote this:-
They don't specify a neon must be fitted to anything.
Given that the FCU for a boiler is likely to be left on all the time, what is the benefit of a neon? Ditto for a hob and extractor unit.
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- posted
15 years ago
Nothing (AFAIK) in the regs. You'd use a neon on something that was undesirable to leave switched on and which was not immediately apparent.
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- posted
15 years ago
How much power does a neon use when on 24/7, out of interest?
David
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15 years ago
Making a few assumptions such as the strike voltage of the neon is 90v, and has 100k resistor in series and the mains is DC not AC (bear with me!)then the current would be 1.5mA and the power 0.36 watts and this would consume 1 unit of electricity in 2800 hours. But the mains is a sine wave and the neon is only lit when the peak voltage is greater than 90 volts so possibly only on for 2/3rds of the time. Which gets us to over 4000 hours per unit. So depending on your tariff maybe 20 pence per year.
Bob