Combi boiler - hot water all the time

jsouth

Hi, I have a combi boiler and want hot water available all the time. On the timer control, if I set the hot water to "continuous", will it cost me all the time this is on or only when I use the hot water?

STOCKWIRE

Only when you run the hot water.

penrhyn

You don't normally have a timer for the hot water with a Combination boiler, are you sure you don't mean a Condensing Boiler.
The later may be combination or heat only.

macman

A combi just heats the hot water on demand, so it is available 'all the time': no hot water is stored.

Cardew

Do you have a Hot water tank? - if you do you probably haven't got a combi but a conventional(system)condensing boiler(combis are also condensing boilers)

I

macman

Unless it's a combi with a stored water facility.

Browntoa

some boilers have warmstart, will fire up from time to time if its on so technically may use a little more gas

jsouth

I have a Worcester Bosch 350, the Honeywell control has Hot Water with the usual settings off, cont, twice, once - does this mean I have a combi with stored water facility?

macman

That control is irrelevant as you have a standard combi. It should just be set to water on continuous I think. What happens if you switch it to 'off'-does the boiler still fire in response to hot water demand? If so you can just leave it set to off. If not leave it on continuous.

LittleMissAspie

Well either way you will be using gas to heat up the stored water or Warmstart water. We had Warmstart enabled on our combi boiler when we moved in and I switched it off as I totally don't see the point of it. A combi takes like 5 seconds to heat the water up, the delay in getting it to the taps is because of the cold water in the pipes which you get in every system.

I suppose the question is, do you get hot water if you leave the Honeywell control set to off?

jsouth

If its set to 'off' no hot water comes through, so looks like it needs to be set to continuous.