learner Posted December 28, 2021 Share Posted December 28, 2021 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 Link to comment Share on other sites More sharing options...
Jilly Posted December 28, 2021 Share Posted December 28, 2021 I asked this question and everyone advised me not to have an electric boiler as bills will be eyewaterinwg.. Link to comment Share on other sites More sharing options...
learner Posted December 28, 2021 Author Share Posted December 28, 2021 that's what i think but aren't gas price going to sky rocket?? Link to comment Share on other sites More sharing options...
nod Posted December 28, 2021 Share Posted December 28, 2021 The problem with gas prices going up Is the other energy suppliers will follow suit and raise there’s to keep pace 1 Link to comment Share on other sites More sharing options...
SteamyTea Posted December 28, 2021 Share Posted December 28, 2021 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. 1 Link to comment Share on other sites More sharing options...
ProDave Posted December 28, 2021 Share Posted December 28, 2021 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. 1 Link to comment Share on other sites More sharing options...
SteamyTea Posted December 28, 2021 Share Posted December 28, 2021 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. Link to comment Share on other sites More sharing options...
JohnMo Posted December 28, 2021 Share Posted December 28, 2021 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. Link to comment Share on other sites More sharing options...
SteamyTea Posted December 28, 2021 Share Posted December 28, 2021 19 minutes ago, JohnMo said: kWh-1 Wow, that is the posh version of kW/h. Shall add that to my list. Link to comment Share on other sites More sharing options...
JohnMo Posted December 28, 2021 Share Posted December 28, 2021 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 3 Link to comment Share on other sites More sharing options...
learner Posted December 28, 2021 Author Share Posted December 28, 2021 Thanks All. Ill double check my numbers and probebly stick to the Glow worm Gas. Link to comment Share on other sites More sharing options...
TonyT Posted December 28, 2021 Share Posted December 28, 2021 Good choice Link to comment Share on other sites More sharing options...
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