Advise On Hot Water Supply To A Tennis Pavilion

[silhillron]

my local tennis club would like hot water to its pavilion, it’s only a smallish wooden clubhouse requiring hot water to two wash basins and a sink unit, floor to ceiling is only about seven feet high so no real head room for a gravity system, no gas available just basic electrics for sockets and lighting
your opinions please on my thoughts of something like an Ariston Undersink 2kw Water Heater 15 Litres, it would need the recommended pressure reducing valve, safety valve terminating outside, and expansion vessel

the water heater would be positioned so the maximum length of one 15mm copper pipe to a basin tap would be approx 15feet / 5metres and in the other direction a 15mm copper pipe to another basin tap and sink unit tap less than 6 feet / 2 metres away

hot water is only required for hand washing after toilet use and the occasional sink unit fill to wash dishes

the installation costs and running costs are an important factor for the club would this idea sound our best option, appreciate comments

thanks silhill ron

 

[Gasmk1]

because it is true only difference is over 15l you need to contact building control so they can notify it

under 15l you don’t need to do this but you still need to be g3 registered/ qualified for any unvented hot

Help me out here.
In post 14 Gasmk1 says you don't need a G3 ticket to install 15l or have I misunderstood?

I used to think I was allowed to install up to 15l (I don't have G3) until reading on here a good few years ago that you have to have a G3 ticket to install any unvented regardless of size.
Since then I've declined jobs to fit them.

There's an FAQ section on the gov's building regs website where the question is answered in the G3 section.
''Do these requirements apply to small water heaters such as water heaters of less than 15 litres that were previously exempt?
Yes, the provision applies to all hot water systems. However, to reflect the lower risk associated with such a system, the work is not notifiable to the building control body nor is there a requirement for a certificate to be produced that states the work complies with the Building Regulations (unless the associated electrical work is notifiable for the purposes of Part P).''

Ariston say that for 15l and under there is no need for G3 certification. Simple folk such as myself might read this and think any old plumber can install up to 15l provided they have the electrical competency or get a sparky to do the electrical side.
So - Ariston are neglecting to inform that a G3 registered engineer is needed to install the 15l heater, isn't that misleading by omission?they have c

Help me out here.
In post 14 Gasmk1 says you don't need a G3 ticket to install 15l or have I misunderstood?

I used to think I was allowed to install up to 15l (I don't have G3) until reading on here a good few years ago that you have to have a G3 ticket to install any unvented regardless of size.
Since then I've declined jobs to fit them.

There's an FAQ section on the gov's building regs website where the question is answered in the G3 section.
''Do these requirements apply to small water heaters such as water heaters of less than 15 litres that were previously exempt?
Yes, the provision applies to all hot water systems. However, to reflect the lower risk associated with such a system, the work is not notifiable to the building control body nor is there a requirement for a certificate to be produced that states the work complies with the Building Regulations (unless the associated electrical work is notifiable for the purposes of Part P).''

Ariston say that for 15l and under there is no need for G3 certification. Simple folk such as myself might read this and think any old plumber can install up to 15l provided they have the electrical competency or get a sparky to do the electrical side.
So - Ariston are neglecting to inform that a G3 registered engineer is needed to install the 15l heater, isn't that misleading by omission?

They have changed the regs and looks like you need to be g3 but don’t have to register with building control

 

[ShaunCorbs]

2012 I believe it changed