immersion heating switch

riddles

Hi all,

To combat the age old problem of the immersion being left on. Currently there is an on off switch and a sink or bath dual switch. What is the difference between the bath and sink switch?


Can anyone recommend a timer switch will offer a switch for either bath or sink and then a respective timer for each setting or indeed a recommendation for an immersion timer switch.

How long should an immersion run to heat water for a standard shower V standard 70-80 litres bath.

Thanks,
Kevin

Mickeroo

We have one of these find it great: https://www.amazon.co.uk/gp/product/B0031KCWJI/ref=ppx_yo_dt_b_asin_title_o00_s00?ie=UTF8&psc=1

Not possible to leave it on even if you forget. One press is half an hour, two presses one hour and three presses 2 hours.

monseiur

I am not a plumber but........Most domestic immersions have two elements in the one unit - one long one 24 to 28 inches and a shorter on 12 to 14 inches approx.
The short one is for the sink - it heats the water in top of the cylinder only enough to wash dishes etc. The long one heats the whole cylinder as you will require more water for bath etc. hence the dual options sink & bath on immersion switch.
I'm also looking around for a good quality digital type timer, the analogue ones are a p.i.t.a. - avoid them. I doubt if it's possible to get a timer with a dual option (sink or bath) but ensure to wire it to bath rather than sink as 99% of the time you'll be pre setting it for shower/bath say first thing in the morning etc.
The problem with the ''count down'' type, that has been recommended here, is that you have to get out of bed in the morning to switch in on:( and the wait for it to heat, whereas with the 24 hour timer clock you can pre set it to come on say an hour before you roll out of bed and you have instant hot water for shower etc.:P

Sleeper12

monseiur wrote:

I am not a plumber but........Most domestic immersions have two elements in the one unit - one long one 24 to 28 inches and a shorter on 12 to 14 inches approx. The short one is for the sink - it heats the water in top of the cylinder only enough to wash dishes etc. The long one heats the whole cylinder as you will require more water for bath etc. hence the dual options sink & bath on immersion switch. I'm also looking around for a good quality digital type timer, the analogue ones are a p.i.t.a. - avoid them. I doubt if it's possible to get a timer with a dual option (sink or bath) but ensure to wire it to bath rather than sink as 99% of the time you'll be pre setting it for shower/bath say first thing in the morning etc. The problem with the ''count down'' type, that has been recommended here, is that you have to get out of bed in the morning to switch in on and the wait for it to heat, whereas with the 24 hour timer clock you can pre set it to come on say an hour before you roll out of bed and you have instant hot water for shower etc.

The digital timer goes before the sink/bath switch. The timer will send power to the sink/bath switch at the set times or when the boost is activated. You still control what element you want to use by the sink/bath switch.

_Brian

My mam has a count down timer fitted probably 20 years. Great job.
15/30/60/120 minutes.

It’s an old mechanical twist timer but it’s a great job.

riddles

Sleeper12 wrote: »

The digital timer goes before the sink/bath switch. The timer will send power to the sink/bath switch at the set times or when the boost is activated. You still control what element you want to use by the sink/bath switch.

Sorry just to clarify - I'm sure I understand. You install a time switch of some sort and retain the old switch which would be manually switched to either bath or sink? or have I got that wrong?

Thanks

monseiur

riddles wrote: »

Sorry just to clarify - I'm sure I understand. You install a time switch of some sort and retain the old switch which would be manually switched to either bath or sink? or have I got that wrong?

Thanks

Yes that's correct. I got that bit wrong in my earlier post, Riddles is correct.
I guess the ON/OFF switch should be left in the ON position all the time, and you can switch to sink or bath as required.
From my limited research earlier (at lunchtime), it seems that the EPH single channel digital timer should do the trick, hopefully one of the professionals on here will give their opinion or recommend a better quality one - I plan to bin my analogue one ASAP !