Replacing a boiler is not a cheap job. So, it is important to get things right the first time. There is nothing worse than replacing a boiler for one that is too low in capacity, and having to suffer cold showers. When you choose a combi boiler, both your radiators and hot water will be controlled by it. So, it is important to get the right size. So, what size boiler for my house?
What Size Boiler for My House : All About Combi Boilers
When choosing a new boiler for your home, you should always consult a heating engineer and gas safety plumber. Find tradesmen for your boiler here. You will need them not just for advice, but for the safe installation of your new boiler. Below is a rough guide on what type of boiler you will need. It all depends on the size of your home, the amount of radiators, and if you will be running more than one shower at the same time.
There are three standard sizes for combi boilers, these are: 24 to 27KW, 28 to 34, and 35 to 42. If your home is relatively small, then the smallest size will be adequate. A smaller house or apartment with just one bathroom and up to ten radiators can cope with a 24 to 27KW boiler. You can also have this size of boiler installed if you never intend to use two showers at once, in the case that you have a small home with two bathrooms.
Medium sized homes with up to 15 radiators and two bathrooms will require a medium sized boiler. Once you have around 20 radiators and two or more bathrooms, you will need a 35 to 42KW boiler. Remember that the higher rate boiler you buy, the better hot water flow there will be. Whatever size of combi boiler you choose, you will find that you lose water pressure if you run two showers simultaneously. Add a dishwasher or washing machine into this mix and someone will certainly be left waiting to wash the suds out of their hair. If you really think it is necessary to run two showers together, then you may decide on a system boiler instead of a combi boiler.
All About Combination Boilers
When you are asking the question, what size boiler for my house, it is important to understand what a combi boiler is. If up till now you have run electric heating, you won’t have had one. A combi boiler provides central heating and hot water instantly. Open a tap and you will get hot water. Turn a radiator on, and in seconds, it will warm up. Unlike electric boilers, water is not heated up, nor is it kept warm. This means that a lot of electric is saved.
Combination boilers also save on space. You will need no storage cylinder and no tank in your loft. You will enjoy the same water pressure that comes from the mains that will be a far cry from what you would expect from an electric shower. Most homes that have radiators nowadays use combi boilers. So, if you are still running an antiquated system, it’s time to upgrade to a combination boiler today.