There's a device in there, that tells your electric meter to switch to the cheaper, Economy 7 / Rate 2 electric rate, between 1-8am (during summer) or 12-7am (during the winter). If that isn't correctly working, then it won't let any Economy 7 hot water tank draw electricity, to heat up the water inside it. That sounds like the problem in my view.
Economy 7 part of hot water cylinder not working By tomwaits, May 6, 2012 in Central Heating Forum & Storage heaters Forums - Forum, Including ELECTRICAL Recommended Posts
I assume by 'boiler' you mean the immersion heater in the hot water tank? Firstly, timing of switching on. I don't think Economy 7(E7) ever comes on as early as 10:30pm.(unless the clock is faulty)The normal timing is a 7 hour period between, say, Midnight and 8am.
Our house has electric heaters - the tank is just for hot water. It is a hot water tank which uses cheap 'economy 7' electricity to heat up overnight. (though has the option of a boost using standard rate electricity during the day).
With Economy 7, electric storage heaters and a hot water tank are the best combination, because you can charge them up during the night and use the heat and hot water in the daytime. Economy 7 can also work well if you use gas for your heating and hot water, but electricity for your appliances and lighting.
Economy 7 heating. water heated via a storage tank in loft. heated water is not hot enough recently. ... Post a job on MyBuilder to find quality, local Electricians ...
Options for Electric Central Heating Boiler Systems. Without doubt the cheapest way to heat your home and provide hot water is via economy 7 but this has its drawbacks but there are other options available for central heating systems which we present below.