Discuss Infra Red radiators, or........ in the Central Heating Systems area at ElectriciansForums.net
have a look at this for infrared heating
Watch: JouleTherm Carbo e-Paint - http://professional-electrician.com/products/watch-jouletherm-carbo-e-paint/
I suspect this is just a wind up.
How can you know what size CU your electrician will fit if you don't even know what heating method you will use and therefore the number of circuits required?
Why are you intent on installing ring circuits for the heating? This is a very poor installation design.
I expect he's already bought it!
The electric heating idea has only come along in the past month.How can you know what size CU your electrician will fit if you don't even know what heating method you will use and therefore the number of circuits required?
Why are you intent on installing ring circuits for the heating? This is a very poor installation design.
Hence, as per my OP........I need real reports, not the "Frequently asked questions" of the websites selling the kit.I'm not sure that electric heating technology is really racing forwards, resistive heating elements are as close as you'll get to a 100% efficient means of converting electrical energy into heat energy.
There are an awful lot of manufacturers claiming to have re-invented this particular wheel at the moment, I don't think any of them really have though!
I had three CU's in my shed, all now illegal and binned.I expect he's already bought it!
The electric heating idea has only come along in the past month.
If I do go that way, why would it be a bad idea to have a separate ring? Such a load of 11kw, for several hours, on a circuit using other stuff too? Surely safer on its own ring?
QUOTE]
A ring final circuit has been designed for socket outlets, not fixed appliances like your proposed heaters. It is not intend to connect such loads, and appendix 15 BS7671 recommends loads of over 2 kW, should have their own dedicated radial circuit.
It's good to know my logic thinking is in alignment with the law. Cheers.A ring final circuit has been designed for socket outlets, not fixed appliances like your proposed heaters. It is not intend to connect such loads, and appendix 15 BS7671 recommends loads of over 2 kW, should have their own dedicated radial circuit
True, and I would also be 100% reliant on a single source of energy, which is not a good plan.The only thing that's racing forward is the cost of energy - good luck.
The electric heating idea has only come along in the past month.
If I do go that way, why would it be a bad idea to have a separate ring? Such a load of 11kw, for several hours, on a circuit using other stuff too? Surely safer on its own ring?
Remember, there is no wiring at present, the previous wiring is ripped out, and it was all in the wrong place anyway. Nothing is chased out. The cables will be in conduit along the floor then hidden by the selotex/boards/laminate, upstairs the conduit will be chased out of the 70mm of screed on the concrete floor. I can have as many circuits as feasible, allowing for future expansion. The only extra cost is the pennies for cabling and the extra RCBO (Or whatever as necessary) in the CU. Sparky will be wanting 7-8k for the job, adding the odd £50 is nothing.
The price difference between a 11 way and 21 way CU is also lost in the noise.
It's good to know my logic thinking is in alignment with the law. Cheers.
Yes. Read it.No it isn't, as pointed out in the post you quoted here the recommendation is for dedicated individual circuits, not a ring circuit.
Yes. Read it.
In the context of not having them on the main socket rings I mean.
Never even considered groups of radials though. I'll need to do some sums. Furthest room from CU will be 18 metres of cable and that was planned to have a 600w heater. Grouping that with the next room, which was planned 400w. Ideally next room also, with another 400w.
I was going to do all the marking out and chasing out for the runs. So it's all measured. (I'm not now, sparky has better tools and will be faster). I had to plan the cable runs to avoid the plumbing runs for the wet system. But now the plumbing runs "May" not be needed. Although, I really need 1st hand reports from users of Far Infra red Rads., because although I'm sure that they feel fantastic when you are in direct line of sight of them, any obstruction will absorb the heat. So, for a ceiling mounted Rad, I will be toast up top, but my feet, under the table would be cold. That makes them c r a p. The blurb from the seller claims that the objects that are heated then warm the air. I'm not convinced on that. And how hot do the objects get, at 1 metre to 3 metres away?Well that is why you pay an electrician to design and construct the installation!
That's a very precise cable length for a job that hasn't even started yet, are you certain of the cable routes that will be used?
... cos we cooked a 100A single phase pretty quicky (at an old workplace) , without using the Antique gas heater.You have a 3 phase supply?
Quoted for a 2500 litre tank, 100% buried (Apart from that butt-ugly mushroom), bunded, encased in concrete etc. 12 rads, boiler, 2 thermal stores in loft....was £16k. Not much more, but more. Boiler was the ugly outside style though, I think they are more expensive than internal types due to waterproofing. Dunno, we've dismissed oil due to all the fecking about with it. And, as most of the nation needs electric, the prices will stay "Balanced". Whereas oil will increase more. Pellets will probably increase too, because why should market forces give a flying feck for a few thousand homes with pellets/oil. If you see my drift.Hi - I thought an oil fired boiler, bunded tank, rads and pipes etc would be substantially less capital than £14k you've been quoted for biomass ?
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