Agreed, I can never understand why Y-plan is popular. On W-plan I've not found CH being delayed until HW is satisfied to be a problem. The mid-position valve is more expensive and less reliable than an either/or valve. And if weather compensation is used it must be either/or to ensure boiler flow temperature high enough tho heat the HW cylinder.
Choosing H/W cylinder size
- Thread starter akist
- Start date
Have you hit an issue, yet with a lack of HW and existing 170 litre tank?
Or has someone placed this idea in your head that your tank needs upgrading in size?
Naturally. when you have extra people staying you may wish or need to run the 'HW on time' for longer than when no guests? My programmer timer has 1 hour boost button that I would use for that.
Or has someone placed this idea in your head that your tank needs upgrading in size?
Naturally. when you have extra people staying you may wish or need to run the 'HW on time' for longer than when no guests? My programmer timer has 1 hour boost button that I would use for that.
Family of 4 in our house- I wouldn't say we're frugal with hot water and we have a 200l cylinder. Unvented, working off very good mains water pressure, and does us absolutely fine with timer set to heat for an hour or so twice a day. 170l sounds fine to me for 2. We were coping with a 100l cylinder which did run out occasionally, before the upgrade to unvented and got the new 200l one.
DIYnot Local
Staff member
If you need to find a tradesperson to get your job done, please try our local search below, or if you are doing it yourself you can find suppliers local to you.
Select the supplier or trade you require, enter your location to begin your search.
Are you a trade or supplier? You can create your listing free at DIYnot Local
