How many fire alarms do i need to install on a 3 bedroom house (2 floors)

[charlalberts]

Hi, Could someone give me advice on how many fire alarms need to be installed on a 3 bedroomed, 2 floor house? I know with loft conversions every room besides the bathrooms need alarms, but what is the requirements for a standard double storey house?

Do they also need to be mains powered, or can they be 9v battery operated?
House it to be rewired.
Thanks for looking, and thanks in advance for your comments.

 

[sedgy34]

1 each level interconnected mains powered

 

[Spazz]

2 - recommended 3

1 Kitchen - Heat
1 Hall way - Smoke
1 Landing - Smoke

 

[charlalberts]

Thanks, just a quick question, can you not use wireless 9v battery operated? Does it need to be mains powered?

 

[rmaynard]

have a look here mate
Electrical ContractorAico - Fire & CO Detection & Fire Protection Specialist

Rob

 

[Spazz]

Dont get me wrong there is nothing wrong with the 9v fire alarms! they save lives
Only problem is they dont interlink!

The fire brigade provide free of charge fire alarms to residential houses so if this is your house worth giving them a ring - they are 3v battery powered but guaranteed for 10 years.

Think of it this way - if the heat alarm goes off in the kitchen (door closed) are you going to hear it? - NO!
If it is interlinked to the upstairs alarm will you hear it - YES!

Weigh up the risks - how much is your/your families/the customer's family's life worth? - Dont cut corners when it comes to safety

 

[Spazz]

have a look here mate
Electrical ContractorAico - Fire & CO Detection & Fire Protection Specialist

Rob

I use these as well - fantastic alarm - especially the radio link units

 

[rmaynard]

I use these as well - fantastic alarm - especially the radio link units

the advice and guidance is also excellent

 

[J&M Electrical]

Doesn't it all depend on the size of the property as to what system/ how many alarms need to go in? I remember wiring simple interlinked smokes in a property but then the building inspector came out to sign off the 1st fix and he said it had to be a proper system with panel because of the size of the house. I was working for a company and only just out of my time at this point so i had no clue about this requirement when i was wiring. Haven't got the regs to hand so i cant remember what the categories are.

 

[J&M Electrical]

Just found it on the napit site..... http://www.napitonline.com/downloads/CP 3 07 P 6-7 Fire Alarm Systems.pdf

 

[Spazz]

Doesn't it all depend on the size of the property as to what system/ how many alarms need to go in? I remember wiring simple interlinked smokes in a property but then the building inspector came out to sign off the 1st fix and he said it had to be a proper system with panel because of the size of the house. I was working for a company and only just out of my time at this point so i had no clue about this requirement when i was wiring. Haven't got the regs to hand so i cant remember what the categories are.

How big of a property did you install this in?

Most domestic properties have a standard interlink system

Just remember with fire alarms, as long as every room that has a risk item of equipment (e.g. cooker, dryer, open fire, etc) has a smoke in it then your fine. You can go OTT with these systems but its all down to what the customer wants.

Some customers dont want panels so a standard interlink system is fine, an advantage is the locate unit, so if you have a large building - press the locate button and all alarms stop apart from the one which was activated! - they also have a reset button and a silent button as well.

again thats Aico.


Go onto Aico and request the free contractors booklet - all you need to know is in there

 

[firemanowl]

Top and bottom of the stairs to protect escape route. Avoid putting smoke alarm to close to the kitchen as it will keep going off, same with bathrooms. Smoke alarms are designed to provide early warning in case of fire so you can get out of the house not go and fight the fire, so keep this in kind when positioning them.

 

[J&M Electrical]

How big of a property did you install this in?

Most domestic properties have a standard interlink system

Just remember with fire alarms, as long as every room that has a risk item of equipment (e.g. cooker, dryer, open fire, etc) has a smoke in it then your fine. You can go OTT with these systems but its all down to what the customer wants.

It was a biggie, 25m Wide, 11m deep, 3 storey, 5 Bed mansion worth about 2mil. I was just really doing what my supervisor at the time told me to do because like i said i was only just out of my time. It had all the Legrand Arteor home automation in, was a joy to work on.

 

[gutterball]

Fire inspector said I had to install a smoke in a hall cupboard as there was a freezer in it. If your nor sure ask them to have a look. Better safe than sorry.

 

[gutterball]

Forgot to say aico have a iPhone app.