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How to choose a good boiler for home

How to choose a good boiler for home

Complaints about poor performance of a new heating system is not unheard of. Typically, there may be two issues here – small boiler size and bad boiler installation.

In this post, you will learn how to choose a good boiler for home. Also, it is wise to learn more about the electric boiler installation, and we will cover this topic in some future posts.

Choose a right-sized boiler

Here, the right size is a two-way street. First, a boiler should have dimensions that fit your space. Second, a boiler should have output sufficient for your needs. So, measure your installation facilities (in mm) and determine your heating and hot water needs (in kW).

For the latter, take into account the following considerations:

  • Number of radiators
  • Number of bathrooms
  • Insulation of your premises

In general, you need 1.5 kW for each radiator and around 3 kW for 1-2 bathrooms. If your home is well-insulated, just sum up the kW numbers to get the boiler output you need. However, if you have poor insulation in your home, you may need to add 20-60% to the subtotal.

Choose the right type of boiler

When it comes to the boiler type, it comes to at least two things to consider. First, a power source you have to run the appliance. Second, a hot water system you need and have facilities for.

As a rule, in the UK, the common choice is between the following boiler types (one in each category):

  • Gas or electric
  • Conventional, combi, or system

Gas boilers are cheaper to run. However, if the gas supply is not available, an electric heating appliance is your only option.

Typically, a conventional boiler is great for large houses, where you have a lot of bed- and bathrooms. And where you have enough space to locate a tank, which will store hot water. In other cases, a combi or system boiler is more suitable. And, indeed, a combi unit, which provides hot water on demand, is the most popular boiler type in the UK.

Why do we not say about boiler efficiency?

Well, of course, the rule “the higher, the better” works for boiler efficiency as it works for performance in general. However, with current Boiler Plus regulations this efficiency fuss is not worth much mentioning. To clarify, any electric boiler features efficiency close to 98-99%. And you don’t find on the market a gas boiler of under 92% ErP.

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