System design r.e. hot water supply times

[AND1234]

A friend of mine bought a 4 bed house, one bathroom one on suite. The layout of the house means its very long and thin with a combi in the garage on the end "vallient sine model" The house obviously used to have a cylinder and normal boiler/back boiler but has been decomitioned and cylinder left in place. Due to the long pipe lengths (presumably) the on suite tap/shower take a good few minutes before being anything like hot... okay for a shower you can wait for but not so good for washing hands in warm-hot water.
Can anyone suggest a re-design to this layout not involing masses of money (okay rip it all out and start again springs to mind also) seens as theyve just moved in moneys short. (okay put up with it is a cheap option )

 

[kevplumb]

reconnect a cylinder on a s plan from the combi and have sec circulation

 

[AND1234]

reconnect a cylinder on a s plan from the combi and have sec circulation

S plan? Do you have a diagram (or link to one) to show how you mean?

 

[kevplumb]

http://www.discountedheating.co.uk/shop/acatalog/03_hon_s_plan.gif

or this

 

[AND1234]

http://www.discountedheating.co.uk/shop/acatalog/03_hon_s_plan.gif

hmmm... bit simplified. Any tanks in the loft?

 

[kevplumb]

only for the cylinder unless you go for unvented

 

[AND1234]

If it was changed for unvented presumably a corgi heating engineer would need to do the installation?

 

[kevplumb]

no unvented G 3 has sod all to do with the flaming rabid dog

 

[AND1234]

Anyone else got any ideas that may be of help?

 

[fazedup71]

that is as they say your final answer! he given you the best and probably cheapest solution!

 

[AND1234]

that is as they say your final answer! he given you the best and probably cheapest solution!

What about these instant under basin water heaters? Anyone had any experiance with them ?

 

[fazedup71]

you will need a part p guy for electrics, if it unvented like what am thinking you will need a whole pile of other bits fitting to it, i would just put up with the dead leg of cold water my self, plus the idea is you leave them on constantly well maybe on a timer coz you dont need it on 24 hours a day but think that a duff idea. if you go for vented you need to fit the tap they recommend

 

[AND1234]

you will need a part p guy for electrics, if it unvented like what am thinking you will need a whole pile of other bits fitting to it, i would just put up with the dead leg of cold water my self, plus the idea is you leave them on constantly well maybe on a timer coz you dont need it on 24 hours a day but think that a duff idea

okay to the part P being in a bathroom but thought they just heated water on demand not store of HW?

 

[fazedup71]

nope most of the have a store of hot water and use the displacement of the cold coming in to push the hot out, think you getting confused with those tiny over sink water heaters that are instantaneous but do not provide a very good flow

 

[AND1234]

nope most of the have a store of hot water and use the displacement of the cold coming in to push the hot out, think you getting confused with those tiny over sink water heaters that are instantaneous but do not provide a very good flow

ok thanks for that.

The S Plan then. What extra parts are involved with that then? I'll have to ask if theres a tank left in the loft...