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Charlie_

Electrician's Arms
As part of a conversion from a town house to a kind of HMO I have been asked to quote for all electric heating + electric showers (5).
Qualifies for ‘comfy heat tariff’.
I have put forms in to upgrade from 1 to 3 phase.
I’m looking at the Dimplex Quantum range, because it’s a brand with a good reputation,etc.
Also has anybody done any comparisons with gas for running costs?
My initial thoughts are that even with half price tariff the electric heating costs will be substantially more expensive than gas?
 
Professional Grade LED Lighting Strips

littlespark

Electrician's Arms
I thought the new 24hr heaters from Rointe or Haverland were more efficient than using storage and off peak.?

Maybe I shouldnt believe everything I read in the wholesalers.

Gas would still be cheaper to run, but customer must have his reasons.

Electric ovens too? Will a 3 phase supply be enough?
 

James the Spark1976

electricity is it real or just magic?
Electrician's Arms
When I did the calcs, about a year ago, elec was 2.3 x cost of gas. Using a modern combination boiler for comparison.
When compared to reverse cycle a/c the cost were similar for gas / elec.
 

Charlie_

Electrician's Arms
I read up on the rointe heaters and it would appear from how I read it that they are more efficient based not on running costs but on their efficiency on lost heat. Storage heaters lose approx 5%, whereas the rointe type are 100% efficient..
Also trying to factor in that everything else will cost less off peak but the tenants don’t pay the bill so they won’t be conscientious.
One of their main concerns is also less maintenance issues with electric
 

marconi

Respected Member
Here is an on-line planner and cost tool which includes a button for storage heaters:


I used it when I thought about installing a SH in each of three one-bed small flats but I could not because there was no wall position to fit them.

My research on the makes led me to Dimplex Quantum dual supply SHs.
 

littlespark

Electrician's Arms
I had a customer who changed her nightstores to rointe heaters on the advice of a friend and regrets it now with her winter bill up 20%
That’s interesting. I know some of these fly-by-night companies that offer less efficient heaters as storage heater replacements can cost a lot more to run.... not even electricians.... change dp switch to socket, plug in and run.

Would be good to know how accurate each manufacturers claims are.
 

Zerax

Regular EF Member
The fundamental issue with storage heaters is that you must have a 'Night time' or 'Economy 7' tariff. Here in the UK, the cheap night time rate only ever comes with an astronomically high daytime rate... which means that you have to work very hard to ensure that you use as much power at night as possible. So things like washing machines, dishwashers and tumble dryers all need to have some sort of timeswitch control.

Also... most electric heaters are nearly 100% efficient (where else does the power input go apart from heat ?). However, it's the on/off control that makes the difference. For reasons that I haven't yet fully fathomed, alot of electric heaters have a 'set back' temp setting, which means that this over-rides the thermostat.
 

telectrix

Scouser and Proud of It
Respected Member
So things like washing machines, dishwashers and tumble dryers all need to have some sort of timeswitch control.

unfortunately this can't be done with most modern appliances. you need to physically press the start button, so a time switch will not work. means a late night or 2. press start @ 12.30 a.m. then bed.
 

Charlie_

Electrician's Arms
So things like washing machines, dishwashers and tumble dryers all need to have some sort of timeswitch control.

unfortunately this can't be done with most modern appliances. you need to physically press the start button, so a time switch will not work. means a late night or 2. press start @ 12.30 a.m. then bed.
Most now come with a delay function as standard - mainly washing machines.
Off peak is 12 to 6am and 3pm to 5pm.. so not too bad really
 

davesparks

Forum Mentor
Most now come with a delay function as standard - mainly washing machines.
Off peak is 12 to 6am and 3pm to 5pm.. so not too bad really
Off peak times vary depending on which tariff and/or what time each supply is set up for. Otherwise the whole country going to off peak at the same time would present a bit of a surge to the grid.
 

Charlie_

Electrician's Arms
I think if the whole country was to switch on at those times it would no longer be known as ‘off peak’.
Those are the hours at which the grid is at its lowest demand and I think why the suppliers are trying to attract more use at those times.
 

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