Electric Combi Boiler

[learner]

Hi Experts

 

My extension is ready soon for the heating to be fitted.

 

I was planning to re use my Glow Worm Cond Combi, its only a few years old and is big enough.

After the talk of gas prices rising im thinking of an electric combi boiler. My new kitchen is all electric.

I have a bath and shower and will add an ensuit shower later.

 

Is this a good alternative?

Are they plumbed in as a gas boiler?

Any thoughts

[Jilly]

I asked this question and everyone advised me not to have an electric boiler as bills will be eyewaterinwg..

[learner]

that's what i think but aren't gas price going to sky rocket??

[nod]

The problem with gas prices going up 

Is the other energy suppliers will follow suit and raise there’s to keep pace 

[SteamyTea]

Gas was so cheap, doubling the price still makes it a third of the price of electricity.

Get a heat pump if you don't have gas.

[ProDave]

Even if gas doubles from it's already high price, it will still be cheaper than electricity.

 

Electric boilers only make sense if you can run them on an off peak tariff.

[SteamyTea]

57 minutes ago, ProDave said:

Electric boilers only make sense if you can run them on an off peak tariff.

And then store enough thermal energy for the next 17 hours.

My off peak E7 is now 14p.kWh^-1, so gas will have to more than triple in price to equal it.

[JohnMo]

30 to 40% of electricity is generated by gas, so hike in gas price equals a hike in electric prices.

 

A kW of heat is a kW heat whether gas or electric is used, unless you use heat pump, buts another story.

 

We are paying

Gas kWh^-1 is £0.0402

Electric kWh^-1 is £0.20

 

Electric combi running costs would be 4 or 5 X as much for the same quantity of hot water.

 

Also a gas boiler can give 30 plus kW at the water instantly, what can an electric combi do?  A quick look for £1k it's 7 to 12kW and about 4 l/m DHW flow rate.  For same boiler cost we get 15 l/m from gas.

 

If you want to go electric, a Unvented cylinder and E7 or heat pump, make sense.

[SteamyTea]

19 minutes ago, JohnMo said:

kWh^-1

Wow, that is the posh version of kW/h.

Shall add that to my list.

[JohnMo]

6 minutes ago, SteamyTea said:

Wow, that is the posh version of kW/h.

Shall add that to my list.

No - I cut and pasted from your post for consistency in units

[learner]

Thanks All.

 

Ill double check my numbers and probebly stick to the Glow worm Gas.

[TonyT]

Good choice