Part L compliance of a new boiler

[Paulhar]

Hi All,
I've been asked to quote to replace a central heating boiler in a block of flats, the current system is a 50kW boiler on a timer and the occupants of the flats use Trv's to adjust the temperature in their flats so there is currently not a single thermostat in the building.
To comply with Part L do I really need to put a thermostat and presumably a 2 port valve on the pipework into each flat?

 

[Scott_D]

Is it piped so that you could add valves?

 

[Paulhar]

Is it piped so that you could add valves?

I haven't looked but I very much doubt it. It was a hotel before being converted into flats ages ago.

 

[Scott_D]

What happens if someone needs to change a rad or trv?
Drain the whole building?
Is it possible there is a cupboard with a set of isolation valves for each flat

 

[ShaunCorbs]

Hiu each flat and use the existing pipe work as your main circuits in the building to each hiu if you can or repipe

 

[Paulhar]

What happens if someone needs to change a rad or trv?
Drain the whole building?
Is it possible there is a cupboard with a set of isolation valves for each flat

I was given a tour by their maintenance guy, no sign of them. I have to assume it's all off one circuit.

 

[SJB060685]

What access to pipes do you have? HIU for each flat as above. Boiler and LLH in plant room with each flat taken off distribution header?

 

[Paulhar]

What access to pipes do you have? HIU for each flat as above. Boiler and LLH in plant room with each flat taken off distribution header?

I can see flow and return in the boiler room, that's it. Splitting off separate circuits to each flat would be more than I'd want to take on. Anyone got any 'outside the box' ideas here?

 

[Scott_D]

Smart trvs for each flat

 

[Chuck]

so there is currently not a single thermostat in the building.

If it's a block of flats, there may be an external temperature / weather sensor.

If this is a 'communal heating system' there are special regulations that landlords need comply with, mainly to do with metering IIRC. I'm not familiar with the details but you can see the sort of thing involved here:

The Heat Network Regulations: what landlords need to do now

www.pinsentmasons.com

Don't be tricked into installing a non-compliant system for a song and then getting stiffed with the costs of upgrading it to a compliant one.

 

[Scott_D]

When was it converted to flats?