Choosing the right boiler size is essential. Too small and your boiler will struggle to warm your radiators, too large, and your boiler will be wasting fuel. Although this can be a confusing topic, here at Lancashire Installations, we are boiler experts. As a result, we have produced this guide to choosing the right size boiler.

Amount of people in your home

The first thing that can influence the necessary boiler size is the amount of people in your home. This is because the more people that live there, the greater the demand on the boiler. After all, 4 people will need twice the amount of hot water that a two person household would use. This means that a boiler with a larger power output may be necessary.

The size of the home

A home with a larger size will generally need a larger boiler than a smaller home. However, it isn’t all about simply physical size. It really comes down to the amount of bathrooms and the number of radiators. This is because, if the boiler will need to service more bathrooms at once, and more radiators, it will need a larger power output to be efficient. Otherwise it will be more likely to break down.

The level of insulation

Finally, this item is only applicable to certain homes. But if you have a larger home, with top quality cavity wall insulation, loft insulation and double glazing, you might be able to downsize your boiler. This is because your home will retain its heat for longer, and a warmer home means less boiler usage.

A rough guide to boiler sizing:

Combination boilers have 3 sizes. These are:

24-27kw- Appropriate for homes with less than 10 radiators and only one bathroom
28-34kw- Appropriate for homes with two bathrooms and up to 15 radiators
35-42kw- This will service multiple bathrooms and more than 20 radiators with no issue.

For all your heating and boiler related needs, contact us at Lancashire Installations today.