honeywell programmer

Joined
11 Jan 2007
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Location
Norfolk
Country
United Kingdom
This Honeywell sundial system, central heating control with ST712
programmer seems to be using, according to an Efergy monitor....13Watts.....£15 a year.
Is this normal or am I reading the monitor wrong. Have checked it against a known wattage.
Not urgent been like this for 10 years.
Thanks for reading.
 
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