Inline water heaters or small unvented storage heaters

[yifgog]

Need to supply hot water to 2 new shower rooms in 1st and 2nd floor of renovated listed build.Each room to have shwer and basin.
Possibilities electric showers ( hot and cold supply needed) or inline water heaters or unvented storage heaters( for these options only need cold supply)

Any advice from you pros on what option you think best.

 

[OwainDIYer]

Is this cheap-and-cheerful or prestigious high-end?

Commercial or residential?

How is other hot water and heating provided?

Is there space for storage cylinders?

Is there sufficient capacity on the electricity supply?

 

[yifgog]

PROPERTY TO BECOME HIGH END HOLIDAY LET.
COMBI BOILER TO SUPPLY HOT WATER AND HEATING.
NOT POSS TO HAVE LARGE STORAGE HENCE COMBI. WILL HAVE TO SUPPLY 1 BATH THEN BASINS, KITCHEN ETC.
FIRST FIX GOING IN NOW SO WILL BE ABLE TO HAVE SUFFICIENT ELECT

 

[OwainDIYer]

1 bath is not the same as two showers; I am confused what you want.

You will not get a high-end shower from any instant electric heater unless you go for 3-phase as used in Germany.

You will get 1 high-end shower out of a decent gas combi.

You may be pushing it to get two high-end showers out of a gas combi on a domestic gas supply.

Therefore a stored hot water system with pumped showers is probably the only answer.