What kilowatt output do I need for my boiler?

Question

What sort of kilowatt output should a boiler have for a semi-detached house with five residents (two kids, one teen, and two adults to be precise)?

Philip · Answer

How many appliances do you have in the property using Gas

Paul · Answer

Sorry, but more information is required.
How many bath / shower rooms
How many radiators.
Is house 2 - 3 or 4 bedrooms 
Type of house

Am · Answer

The kw of your boiler mainly depends on how many bathrooms and water outlets you have , and how many heating appliances you have ie radiators. 

Then it would depend upon what system is the house running on , is it a Combi boiler or a system boiler?  etc . 

A standard three bedroom one bathroom can be run with a 25 kw Combi boiler .

Stuart · Answer

depends on what type of system you have in your house 
how many radiators and how many bathrooms

Adam · Answer

A 30kw boiler would be more than enough for the central heating side of things but it’s best to check flow rates to get the maximum hot water output 
Which is more important with having 5 residents

Justin · Answer

You will need a minimum of  a 30 kilowatt boiler but go with the most litres per minute for the hot water flow

David · Answer

This all depends on the size of your house and the number of radiators you have.  you should ask your local heating engineer to provide a survey.

Shahzad · Answer

How many bedrooms house is and how many Bathrooms if three bedroom one toilet then 25 kW boiler should be enough

Muhammad · Answer

Hi
It doesn't really really matter how many people would live in the property what matters is the size of the property.if you could tell me how many rooms are downstairs and how many upstairs and what type or size of  radiators are currently in property then I will be able to tell you the size of boiler you need for your property
I hope it helps

Gordon · Answer

You really need to engage a Gas Safe registered engineer to call in as the kw output required depends on many things, i.e, what type of boiler do you require, combi heat only or system?, the type of house, number of outside walls, window type and area, type of floor, total area.  Also the number of bathrooms and hot water draw offs is important to consider.  The engineer will consider all of these aspects and more before recommending the best boiler for you.

What kilowatt output do I need for my boiler?

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