Boiler under stairs

[Reltub]

Any1 know the rules about fitting a boiler in an under stairs cupboard?

 

[dancinplumba]

What rules ? are there sum ? no probs as i see it

 

[Reg Man]

What rules ? are there sum ? no probs as i see it

Refer to BS6798 as follows:4.4
Location
COMMENTARY AND RECOMMENDATIONS ON
4.4
Room‑sealed boilers may be installed in any room or space. It is not
recommended that any type of boiler be installed in an understairs
cupboard, bathroom or shower room, bedroom or bed-sitting room, or
within a toilet or cloakroom, but such installations are acceptable subject
to the requirements of
5.3.4 to 5.3.7.
5.3.4
Understairs cupboard installations
If a boiler is installed in an understairs cupboard, the cupboard shall
conform to one of the following.
Where the premises in which the cupboard is a) located has no more
than two storeys, the cupboard shall conform to
5.3.2.
b) Where the premises in which the cupboard is located has more
than two storeys, all the internal surfaces of the cupboard,
including the base, shall be non‑combustible or lined with
non‑combustible material, having a fire resistance of not less
than 0.5 h when determined in accordance with BS 476‑22 and
the air vents shall be direct to outside air.
COMMENTARY AND RECOMMENDATIONS ON
5.3.4
Installation in an understairs cupboard should only be considered if there
is no alternative location.
Whenever possible, the boiler in an understairs cupboard should be of the
room‑sealed type.

 

[Reltub]

Cheers reg man where did you find that?

 

[Reg Man]

British Standard 6798Specification for installation
and maintenance of gas-fired
boilers of rated input not
exceeding 70 kW net

 

[Reltub]

You got link to website?

 

[dancinplumba]

Refer to BS6798 as follows:4.4
Location
COMMENTARY AND RECOMMENDATIONS ON
4.4
Room‑sealed boilers may be installed in any room or space. It is not
recommended that any type of boiler be installed in an understairs
cupboard, bathroom or shower room, bedroom or bed-sitting room, or
within a toilet or cloakroom, but such installations are acceptable subject
to the requirements of
5.3.4 to 5.3.7.
5.3.4
Understairs cupboard installations
If a boiler is installed in an understairs cupboard, the cupboard shall
conform to one of the following.
Where the premises in which the cupboard is a) located has no more
than two storeys, the cupboard shall conform to
5.3.2.
b) Where the premises in which the cupboard is located has more
than two storeys, all the internal surfaces of the cupboard,
including the base, shall be non‑combustible or lined with
non‑combustible material, having a fire resistance of not less
than 0.5 h when determined in accordance with BS 476‑22 and
the air vents shall be direct to outside air.
COMMENTARY AND RECOMMENDATIONS ON
5.3.4
Installation in an understairs cupboard should only be considered if there
is no alternative location.
Whenever possible, the boiler in an understairs cupboard should be of the
room‑sealed type.

where is 5.3.2 ? pls

 

[Reg Man]

5.3.2.
b) Where the premises in which the cupboard is located has more
than two storeys, all the internal surfaces of the cupboard,
including the base, shall be non‑combustible or lined with
non‑combustible material, having a fire resistance of not less
than 0.5 h when determined in accordance with BS 476‑22 and
the air vents shall be direct to outside air.

5.3.7 does not apply to understairs cupboards


Read more: http://www.ukplumbersforums.co.uk/g.../49040-boiler-under-stairs.html#ixzz2MCEUx0A5

 

[dancinplumba]

thats not 5.3.2 tho. what if prop has no more than 2 storeys ?

 

[Reg Man]

Sorry my mistake. If the property has less than two floors then there is no requirement to fire proof. Its about fire regs. You can jump from a first floor and probably survive, but less chance from a second floor.
5.3.2.1

The boiler compartment shall be a fixed rigid structure, the
internal surfaces of which conform to the boiler installation instructions.
COMMENTARY AND RECOMMENDATIONS ON
5.3.2.1
If the boiler manufacturer’s installation instructions do not give specific
advice, then any internal surface of the boiler compartment which is of
combustible material should either be at least 75 mm from any part of
the boiler or should be lined with non-combustible material. Methods
of determining whether a material can be described as combustible
or non-combustible are given in BS 476-22. For further advice, see
HSE publication,

Safety in the installation and use of gas systems and
appliances

5.3.2.2The compartment shall permit access for inspection and servicing
of the boiler and any ancillary equipment. A notice shall be fixed in a
prominent position within the compartment to warn against its use as
a storage cupboard. The compartment shall be fitted with a door that
will permit withdrawal of the boiler and any ancillary equipment.