Do I need a cold water tank with a combi boiler?

One of the many benefits of a combi boiler is that you don't need a separate water tank to store hot water. A combi will only heat water as and when it's needed, making it an efficient and practical solution.

Can I get rid of my cold water tank?

You can now remove the old cold water storage tank to make room for the new one. If the tank is in your loft space and won't fit through the hatch, just move it to one side. You may need to have a professional contractor dismantle the tank for you at a later date.

Do I need a cold water tank with a system boiler?

System boilers can take up more space

Although there is no need for a cold water feed tank, system boilers actually take up more space than combi boilers. This is due to the need for a hot water storage cylinder.

Does a combi boiler supply cold water?

Energy Efficient – The Combi boilers take the cold water directly from the cold mains supply and instantly heat it for you. This is a big advantage, saving energy, money and space. As a result, Combi boilers are more energy efficient and money saving than the regular boilers.

Can a combi boiler just heat water?

The quick answer is, yes you can! Most of them have the option on the actual boiler to choose exactly what they heat up. That means you can choose to just have them heat up your water, just your heating, or the usual way of heating them both at the same time.

Should I Buy A Combi Boiler Or A System Boiler?

Why do I have a combi boiler and a water tank?

One of the many benefits of a combi boiler is that you don't need a separate water tank to store hot water. A combi will only heat water as and when it's needed, making it an efficient and practical solution.

Do you need an expansion tank with a combi boiler?

Despite the fact that you may not have heard of an expansion vessel before, it's a crucial part of your heating system that allows it to maintain a constant pressure. If you have a closed-water heating system in your home, such as a combi boiler, you will have an expansion vessel.

Where is the water from with a combi boiler?

The combi boiler doesn't heat water from a tank like conventional, older boilers do. Instead, it draws water directly from the mains, which is passed through the secondary heat exchanger. This gives you instant, mains-pressure hot water. The boiler is basically always on standby, waiting for you to turn on the tap.

What pipes go into a combi boiler?

A combi boiler gets its water supply from a 15 mm copper pipe fitted to the mains in the property.

What are the 5 pipes that a combi boiler?

Does a system boiler need a storage tank?

Unlike regular boilers, system boilers do not require an expansion tank or external expansion vessels. This makes them both easier to install and less in need of space.

How much does it cost to change a water tank to a combi boiler?

Cost of installing a combi boiler and removing the water tank. To replace your heating system with an efficient combi boiler and remove the old water tank, you can expect to pay around £2,800.

What is the difference between a system boiler and a combi boiler?

A Combi boiler provides both heating and hot water instantly. A system boiler is designed to work with a cylinder to provide hot water as it does not have the hot water heat exchanger. It contains an expansion vessel and pump allowing the boiler to be installed in a sealed system.

Do you still need a cold water tank?

When it comes to the supply of water within most commercial and larger domestic properties, the cold water tank is an essential part of the system.

Do you need a cold water tank UK?

IIRC the building regulations changed some years ago and it is no longer compulsory to have a cold water tank. It's handy for flushing the loo in the event of a water cut though ( which is why it was a requirement).

Do I need a cold water tank in the loft?

Traditional vented heating systems require a cold water tank in the loft, but switching to an unvented hot water cylinder as part of your loft conversion would mean that an attic water tank is no longer necessary.

What are the disadvantages of a combi boiler?

What size water pipe do I need for a combi boiler?

Gas Safe regulations state that at least 22mm diameter pipes should be used with Combi boilers for proper functioning. You could also use 28mm or 35mm pipes depending upon the unit's power output requirements.

Can a combi boiler work on a one pipe system?

A one pipe system is ok for a combi boiler although it does have pitfalls. The last radiator in the loop will generally be cooler than the rest as the heat has sufficiently cooled throughout the run.

What is the best way to run a combi boiler?

How much water does a combi boiler use?

Combi boilers need at least 10 litres per minute flow rate to operate. If you have less then you'll either need a mains pump (which can increase it to 12 litres per minute) or a pressure accumulator tank.

How do I increase the water pressure in my shower with a combi boiler?

You can boost showers or taps in your home up to the maximimum capacity of your combi boiler. To boost and protect a single shower the best solution is to boost the hot and the cold with the SP22S (gives you two automatic pumps). Each shower or tap you boost and protect needs an extra SP22S.

Do you need a water tank with an electric combi boiler?

Unlike an immersion heater, an electric water boiler can serve both your central heating and hot water needs (unless you need an electric boiler for hot water only). What's more, a combi boiler removes your need for a water tank, saving you precious space and leaving you with one less part to fix and maintain.

Can a combi boiler fill a bath?

Nearly all combination boilers can cope with heating systems in larger houses. You can fill a bath almost twice as quick with a 42kw Worcester than a 24i Junior model. A 100 litre bath would take about 5 and a half minutes to fill with the larger boiler, but just over ten minutes for the smaller model.

Why do new builds have water tanks?

In many new build properties, there is the likelihood of needing high hot water demand, which therefore means a hot water cylinder is often considered essential.