Combi boilers, TVR's and room stat

[D_Hailsham]

My College tutor

Why ask him/her? Is he/she tutoring you on heating systems?

if all rad's had TVR's on them, and disabled the room stat

But that is NOT permitted under Building Regulations.

so that all the rad's worked directly on TVR's from the boiler then I would be ale to regulate each room much more efficiently, therefore [/i]it would save me money on heating[/i].

That means the boiler will run continuously even when the house is up to temperature. How does that save you money?

He also stated that i would need to change the temperature settings on the boiler for the heating as it can stay at 70 degrees

Presumably he means turn the boiler up in the inter and down in the summer.

I can then just change the TRV's in each room up or down dependent on the requirements.

TRVs' should be left to do their job, which is to maintain a constant temperature in a room.

The engineer has now added a TVR to the main rad in living area, and disconnected the room stat.

Did he inform you that this is NOT permitted?

The engineer explained that having all TRV's on the rad's, would cause me problems with the boiler over heating, and constantly being on in the summer.

So he did give you sensible advice, but you chose to ignore it!

I have also been informed that its better to have the boiler on all the time throughout the year, on low in the summer rather than having the boiler constantly turning its self on and off and having to re-ignite each time.

Nonsense! The boiler turns itself on automatically when the water temperature drops and turns off when the correct temperature has been reached. (Yes, other readers, I do know about the boiler modulating down, but that's complicating things too much for the OP. )

 

[mysteryman]

You have received some replies and other info of an unhelpful nature.

It is a requirement that you have a room thermostat, and yours is in the best place. The issue here is radiator sizing and balancing. This needs to be done correctly. Your installer should have done this.

The system will work with TRVs on all rads plus a bypass, but it would be illegal and less efficient - which is why it is illegal. Your college lecturer should either know this, or shut up!

 

[mickyg]

which is why it is illegal.

yep watch out for the plumbing gestapo ! i think its about 5yrs now for not having a room stat

 

[transam]

Stick a radio controlled stat in , do not bother fixing it to the wall & u can wander around the house with it , including the bath room !!

 

[Dan Robinson]

FFS.... Shall we take bets on what this muppet tutors I put a start for 10 - Home Economics

 

[Agile]

There used to be an expression along the lines of "those who can do it do it but those who cannot do it teach it"

I am surprised and rather disapointed that she decided to totally ignore the advice that I and some others have given! She apparently prefers to have it modified by people who should know better to create an illegal installation.

Tony

 

[DP]

There used to be an expression along the lines of "those who can do it do it but those who cannot do it teach it"

Streotyping again are we? I wonder what our learned friend Chris has to say about this. There are plenty lecturers out there who know what they are talking about.