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Night Rate Immersion Vs New Boiler

godtabh

Tried searching this and googling.

what is the cheapest option for heating water? Night rate immersion vs a new oil boiler?

From what I read, in the summer it would be cheaper via immersion (with the added bonus of solar) but in the winter it would be the oil?

is this correct?

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Evd-Burner

I really cant believe I've not heard of these before. Gonna have to set up a few alerts and try to get something cheap to give it a test over the winter!

@graememk I'd be handy enough with basic plumbing but no way I would do a tank install myself, have a good plumber who charges fair and its work that I see as needed anyway. Have you been heating with immersion for home heating and gas?

the heat stores I looked at had 3 coils, some with even more but they seem made money.

graememk

https://www.boards.ie/discussion/comment/119855523#Comment_119855523

No gas up where I am 😆

Yep heating the house with a mixture of immersion and solid fuel. Putting in about 12kwh per night. Can heat the tank from the stove too. Sometimes I "preheat" the tank from the stove around this time of night.

DHW is covered by stove and solar tubes and immersion in the summer.

Using no oil this winter. (Tank empty!)

unkel

https://www.boards.ie/discussion/comment/119855523#Comment_119855523

Oi! You will not be setting up any of those alerts until I have mine bought 😂

Evd-Burner

https://www.boards.ie/discussion/comment/119855682#Comment_119855682

hahahahaha, your lucky I'm away with work for a week come starting Saturday ;)

cruizer101

On the storage heaters is there anyway to control them better, most seem to have two dials input and output, and from that they seem to control how much to charge up, what time to charge up, what time to output, how much to output, whether they heat during day using element or just stored heat.

They really have very little control.

Would it possible to get one that just stored heat during specific hours (I've cheap ev rate from 2-5) and then output it when I want, don't turn on element outside charging hours unless I specify it.

From 2-5am I have 10c per unit which works out cheaper than oil per kWh be great to be able to utilize it a bit for heating but don't think traditional storage heater would work for that, maybe possible with a smart plug or something.

graememk

https://www.boards.ie/discussion/comment/119856037#Comment_119856037

New ones have much more control, First data sheet pulled out of google,

ECOMBI-PLUS-Smart-storage-heater-Technical-Sheet.pdf

the largest one has a heat output of 1200w, but charges at 2.6kw, looks like it takes 8 hrs to "charge" with a potential storage of 20kwh.

cruizer101

https://www.boards.ie/discussion/comment/119856684#Comment_119856684

Can't find a price for the one you linked but did do a bit more looking since I posted and found some with similar features but looking at best part of €1k

At that price you'd be a long time getting your money back even just compared to a 50 quid small oil rad.

I wonder is there any way of using some smart switches with an old cheap one to better control it, probably more effort than its worth.

graememk

https://www.boards.ie/discussion/comment/119856823#Comment_119856823

A bog standard timer plug would work.