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  1. O

    Time control for night-rate/economy 7 tariff

    Am I correct in thinking that would be the case in a typical residential context but where the meter is a HH meter then no switching (to a night rate circuit) is needed because the meter will record day and night rate consumption?
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    Time control for night-rate/economy 7 tariff

    Couple more pics: 1. Supply meter location 2. Bank of sub-meters used to recharge weekly consumption to owners/occupiers. 3. Close-up of one sub-meter With regard to 2, I presume that the 'low' and 'normal' registers of the sub-meters are separately wired to the 'day' and 'night' circuits at...
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    Time control for night-rate/economy 7 tariff

    This is the supply meter.
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    Time control for night-rate/economy 7 tariff

    I am chairman of owners' committee for timeshare development of 11 apartments. All heating is electric night storage radiators and we are on a dual rate tariff. I've recently obtained half-hour meter reports from the electricity supplier and noticed a metering/billing anomaly. The night rate...
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    Electric heating

    Sorry if I'm slow to catch on here. Is your suggestion that an electonically timed/controlled panel heater system that turns on/off according to temperature settings could be more economic than night storage heaters that (mostly) use night rate energy. Is this the type of heater you have in...
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    Electric heating

    I'm chairman of the owners management committee. I own two weeks in July so not so much of an issue for me but £250 for one week!! The windows are all double glazed and relatively recent (<10 years) but there's a lot of them as it is a waterside location. Even the cheap rate electricity is...
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    Electric heating

    I'm looking for some pointers on electric heating in an apartment block comprising 11 apartments constructed ~35 years ago. It is a 'shared ownership' development so has different occupants each week. Each apartment is two bedrooms (one en-suite) with living room/kitchen and a second bathroom...
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    Bell transformer queries

    Fair enough. But this is data for the transformer I've installed. 0V, 10V, 12V,16V Output Voltage (NEST / RING Doorbell Compatible) Bell transformer is for use in consumer units with an operating voltage up to 250V 50Hz. and has a power capacity of 8VA. It complies to the following standards...
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    Bell transformer queries

    Hmm. I see the argument but the installation manual is quite clear that existing transformer can be used if 16-24V. The video is not recording continuously, only when activated by motion detector or bell push.
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    Bell transformer queries

    I am planning to replace existing plain vanilla doorbell with a wired video doorbell. I want to retain the existing chime, which requires 8-16V AC supply. The video doorbell requires 16-24V and 10VA. Existing doorbell setup includes a Honeywell remote chime that specifies 8-12V supply. I...
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    Boiler cycling on and off

    Hi. I hope I can get some help with diagnosing a problem with my CH/DHW system. These are the facts. Boiler is a Potterton Suprima 80 (~ 20 years old but still in good condition) DHW is stored in Megaflo cylinder (unvented system) DHW is on a water circuit separate to two CH circuits serving...
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    Backup generator

    Thanks Sunray and yes, I was thinking of a 2P RCD + 63A fuse. I haven't yet found a 2P 63A RCBO. Below is a wiring diagram of what I envisage based on the discussions so far. Couple of NBs: (1) The earth connection from the genny to MET will be via the 32A connecting lead so not permanent...
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    Backup generator

    Is the purpose of that to mitigate against the lead being used in a setting where the N-E link isn't needed?
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    Backup generator

    Yes, I corrected that. The fuse would be the OCD for the SWA. There is a breaker on board the genny that should protect the connection cable (it should trip if load exceeds the genny's capacity, which is 25A. I suggested the 2-pole RCD in place of the RCBO recommended by Simon and to be the...
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    Backup generator

    Many thanks Simon and John. It seems to me I should only try to make 'this' genny safe to use. I am the only person who would be at all likely to operate the genny. If I sell the house, it may or may not include the generator. If not, I will place a suitable warning on the inlet/changover...
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    Backup generator

    Is this what you had in mind? https://www.cef.co.uk/catalogue/products/1780838-63a-clipfit-fuse-holder-black
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    Backup generator

    Thanks Simon. Yes, the C/O switch is actually a DIN 4-module unit in an enclosure. Do you have a link for a DIN rail fuse & switch? The other CU is in a garage but it serves a fair bit of the house (not the kitchen).
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    Backup generator

    On the N-E connection question, that came from here: https://www.justgenerators.co.uk/generator-faq.html Relevant extract below (my emphasis). Most buildings now have an RCD built into the consumer unit. This is configured to operate from the mains supply with an earthed neutral, and not from...
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    Backup generator

    Appreciate all replies so far, some relevant and others not so much. Anyway, assuming there are still some pro sparkies out there who are willing to impart their expertise, the situation has moved on. I have now acquired a 6kW diesel genset. I want to work out the best way of hooking it up to...
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    Backup generator

    Thanks for the input. All adds to the rich tapestry. :)
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