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Let’s debunk some of the most common combi boiler myths floating around.
Many homeowners who are planning to do a boiler replacement are put off when they hear combi boiler myths. If you are one of them, and you are now rethinking whether getting a combi boiler upgrade is the right choice for you, let us help you by debunking some of these combi boiler myths.
Common Combi Boiler Myths:
- A combi boiler is slow to fill a bath. This was true some ten to fifteen years ago when combi boilers started to gain popularity in the UK. Back then, boilers were sized based on the number of radiators installed and the hot water cylinders so when they were replaced with combi boilers, they were fitted with the same output. But today, boiler manufacturers make a variety of outputs so you can choose to have a larger output with a high flow rate.
- The hot water takes longer to reach the tap. This is another complaint in back in the day when combis were just becoming known. Today, combi boilers have a preheat function which allows it to keep a small amount of hot water. As a result, you have access to hot water instantly. This function can be turned off.
- There is no electric immersion or hot water tank that I can use as a backup. This actually true. However, modern boilers come with great warranties that last up to 10 years. This is because manufacturers are confident that the products are tried and tested. Read about our suggestions on different boiler brands.
- Combi boilers are not efficient for large homes. Similar to the first combi boiler myth, this is no longer a problem as boilers today feature different outputs. You can choose to have a flow rate of as much as 25 litres per minute, which is more than enough to supply two showers simultaneously. The heat output to the radiators can be as much as 42kw – plenty to go around for a home with five bedrooms and two baths.
- I have poor water pressure so I can’t have a combi boiler. This can generally be a concern for those who live in apartment buildings. However, you may be able to improve the water pressure depending on where you are located. Consider installing a main booster pump or creating a break tank.
