advice re boxing in oil boiler

[jb1468]

Before I start Can I say a big thank you for those on this site. I have been posting on various help sites since I started some house renovations and this one by far is the most helpful in the responses.

OK - Just had my heating updated with new condensing boiler/programmer/stats/trvs etc... Before I get critics re choice of boiler I am on a tight budget so was looking for an economical yet reliable condensing boiler so I went for 'grant euroflame condensing boiler house 50 - 70'.

Happy with this but as it does not look the greatest (ideally i would have put in garage etc - but don't have such a room so it is indoors in a type of utility room (unused room but hope to renovate to a 'usable room') I would like to house it in - i.e. build a cupboard around it and use it to store some things. Perhaps a larder type size or something a little smaller.

I am seeking advice on this. Is it safe, what are my choice of materials (would like to use wood so I can decorate), spaces for airflow etc, any advice very welcome

many thanks

 

[OilLecky]

Well Jb no takers eh?
If you have the Grant manual, which the installer should have left with you, turn to page 16. (If not download the manual from here. http://www.grantuk.com/TechnicalManualDownloads.aspx )

The installation that you are talking about is "Boiler in a Compartment."
You will see all the different configurations for "ventilation". If you have a balanced flue then you need the amount of ventilation shown in Figure 7. This is the amount of ventilation to keep the boiler external / electrics cool. If you do not have a balanced flue then you need the extra "combustion air" that is detailed in figure 8 AS WELL AS the ventilation air.
I do not know of any other requirements.

 

[jb1468]

Well Jb no takers eh?
If you have the Grant manual, which the installer should have left with you, turn to page 16. (If not download the manual from here. http://www.grantuk.com/TechnicalManualDownloads.aspx )

The installation that you are talking about is "Boiler in a Compartment."
You will see all the different configurations for "ventilation". If you have a balanced flue then you need the amount of ventilation shown in Figure 7. This is the amount of ventilation to keep the boiler external / electrics cool. If you do not have a balanced flue then you need the extra "combustion air" that is detailed in figure 8 AS WELL AS the ventilation air.
I do not know of any other requirements.

Hi, I really appreciate your time taken to respond. Many thanks

 

[OilLecky]

JB. Before someone else pipes up I'd better mention the flue. I hope that as you have a nice new installation that everything is OK but there are rules about flues passing through the building. Obviously it wouldn't do to have any flammable structure close to a conventional flue. Grant flue systems cover this and should be OK. What kind of flue do you have i.e. is it a balanced flue?

 

[jb1468]

JB. Before someone else pipes up I'd better mention the flue. I hope that as you have a nice new installation that everything is OK but there are rules about flues passing through the building. Obviously it wouldn't do to have any flammable structure close to a conventional flue. Grant flue systems cover this and should be OK. What kind of flue do you have i.e. is it a balanced flue?

It says it is a low level balanced flue. Boiler situated directly against outside wall and flue going directly out that wall into open space. So considering the casing in when you say 'close to' what would definetly be a safe distance to leave between flue and wooden structure?.....again many thanks

 

[OilLecky]

You are OK JB. The outer part of a balanced flue is where the fresh air is drawn into the boiler, so no problem with heat, you can put things right up against it if you want. However a 50mm air gap around the flue wouldn't go amiss. You must have the ventilation inlet and outlet as shown in the manual, page 16 Figure 7. (I imagine that you will end up with the "Room sealed balanced flue compartment ventilated from room", arrangement. i.e. one 290cm sq vent at low level and another 290cm sq vent at high level.) If you put shelving in the compartment make sure that they come out easily for boiler maintenance!!! Good Luck