When is your hot water ON

mute_posting

myozone wrote: »

I feel we are all getting a little confused, It's really only a problem with recalculated water or stagnant water - I haven't heard of any cases with domestic water systems i.e. cold storage tank in a nice and warm loft space...

I'm not getting confused :-)

There is a risk wherever water produces fine mist or droplets. (My example above of the shower) Admitted, there is generally a greater risk with industrial cooling towers but that isn't to say that there is no risk with stored water. In fact our local pool was closed for almost 6 motnhs a couple of years because of legionella bugs above the accepted level in the shower systems.

AFAIK they had to completely re-plumb the changing rooms to meet the requirement of storing the water above 60 and also having it reach the outlets within the required time.

If your loft space is that warm at this time of year - you need to sort some insulation out! lol

But being serious, the cold storage tank (for those people that have them) will usually be lagged and be being periodically topped up with water entering at about 10-15 degrees therefore the bugs in this water are dormant (and it generally doesn't reach the temperature required to allow them to multiply.

Regardless, I stand by my advice that (whoever mentioned it) should increase their tank stat to ensure the tank reaches 60 degrees before turning off!

HTH
MP

spinningsheep

We have decided to turn the hot water off. We worked out that the only thing we use the hot water for is washing up and baths as the showers are electric, the latter is once in a blue moon as we're on a water meter and we are just going to boil a kettle a couple of times a day for the washing up. Doesnt seem much point in heating a whole tank of water to use very little. My question is this though, is this more cost effective to let it cool completely then heat it up if we want a bath, and, if we didnt do that and just left it off, would we need to drain off the tank before putting the heating/hot water on towards the end of the autumn before use as the water would have gone stagnant or would it be okay? cheers

MrsE_2

Cardew wrote: »

The important thing from an economy aspect is to have the heating on and then off before you start to use it in the morning. This ensures that you will have lower losses when water is not being used, as the water in the tank will be cooler.

.

You seriously sound like you know what you are talking about so can I ask your advice on times?

We have a well lagged tank & gas CH & HW. But not a combi.
We also have a cold fill dishwasher, a waching machine that does mainly 40 C washes (so using cold fill) & an electric shower.

My hubby & daughter may use hot water in the morning (I ALWAYS shower)
They will want it at about 4.30am & 7.00am. (just a small basin full each)

I don't use it for the main washing up in the evening, but I do use the hot water for a sinkful to wash the glasses used at dinner & to wipe the dining table & worktops down, about 7pm or 8pm.

Then when I go to bed of an evening (about 11 pm) I want hot water to do the OCM (its a face cleansing routine that needs hot water - just a small basin full)

So can you tell me what times I should be programming mine for. Because now I haven't got the heating on, it seems wasteful to run the HW for a few hours in the AM & again in the PM.

Thank you

Cardew

A well lagged tank will lose surprisingly little heat in a 24 hour period, so it really is not that critical when you have it on.

Really post#5 answers your question.

You really need to experiment a little.

I would try having it on for an hour in the late evening with the heating off before you do your OCM and there should be plenty of hot water for your husband and daughter in the morning, and probably for your dinner routine.

If that isn't long enough, then increase the time.

However as said above you are not going to save masses of gas.

The Central Heating provides the serious scope for saving.

top.position

MrsE wrote: »

You seriously sound like you know what you are talking about so can I ask your advice on times?

He(?) does, doesn't he!

We have a well lagged tank & gas CH & HW. But not a combi.
We also have a cold fill dishwasher, a waching machine that does mainly 40 C washes (so using cold fill) & an electric shower.

My hubby & daughter may use hot water in the morning (I ALWAYS shower)
They will want it at about 4.30am & 7.00am. (just a small basin full each)

I don't use it for the main washing up in the evening, but I do use the hot water for a sinkful to wash the glasses used at dinner & to wipe the dining table & worktops down, about 7pm or 8pm.

This when you want the hottest water, so I would suggest you put it on to switch off just before 7pm. About an hour is more than enough for our system, at this time of year, even if I use the (power) shower.

Then when I go to bed of an evening (about 11 pm) I want hot water to do the OCM (its a face cleansing routine that needs hot water - just a small basin full)

So can you tell me what times I should be programming mine for. Because now I haven't got the heating on, it seems wasteful to run the HW for a few hours in the AM & again in the PM.

MrsE_2

Cardew wrote: »

The Central Heating provides the serious scope for saving.

Can't cut down on this:mad:

But will have it off now till late Sep, so savings there:D

Thank you:D

amtrakuk

Mines electric on demand - Redring powerstream 12Kw

nickcardwell

spinningsheep wrote: »

We have decided to turn the hot water off. We worked out that the only thing we use the hot water for is washing up and baths as the showers are electric,

Same here,


Hot water has not been on since start of may and wont be back on tll end of august (or when it starts to get cold ).


All dishes go in the dishwasher, if we need hot water we boil the kettle.

Showers are electric.

spinningsheep

you reakon the water in the tank will still be okay if its been sitting for 3 months or would you say drain the tank before we use it again?

Cardew

spinningsheep wrote: »

you reakon the water in the tank will still be okay if its been sitting for 3 months or would you say drain the tank before we use it again?

You are allowed to use water from the Hot water taps - but if you don't heat it, it might be cold!