Combi, System & Conventional Boilers | Effective Home

Need a new

Fuelled by natural gas, LPG or oil, efficient modern boilers burn less energy and produce less waste. Good news for your energy usage and heating bills.

New boiler deals

New boiler deals are available on a range of replacement combi, conventional and system gas boilers – either on finance or by card.

If you are looking for ECO funding for your new boiler on its own or as part of a first time central heating system, we can help.

3 boiler types – compare benefits

Combi boilers

  • Compact & economical
  • Heat & hot water on demand
  • Energy efficient
  • No stored water required

Get a quote

System boilers

  • Economical to run
  • Quick and neat installation
  • No need for a feed
    and expansion tank

Get a quote

Conventional boilers

  • Good for large families
  • Compatible with older
    central heating systems
  • Easy to install and maintain

Get a quote

Looking for a particular
boiler model?

Peace of mind for
up to 10 years

Effective Home only fit boilers made by quality manufacturers, guaranteed to heat your home and hot water for up to 10 years with its annual service.

Approved manufacturers

New combi boilers

A new combi boiler is a high efficiency water heater and a central heating boiler combined in one compact unit, hence the name ‘combi’.

This means you don’t need a hot water cylinder or water tank, freeing up space in your home.

Combi boilers are suitable for most houses where a few people require water at the same time. With so many benefits combi boilers make up well over half of all new boilers fitted in the UK every year.

Get a quote

New system boilers

A system boiler only requires a cylinder for storing your hot water in, not a header tank in the loft.

The major heating and hot water system components are built into the main boiler itself, making this type of boiler generally quicker and easier to install.

System boilers are also great for homes that require hot water in more than one place at the same time.

Get a quote

New conventional boilers

Conventional boilers are also known as regular boilers, traditional boilers or heat only boilers. They require both a tank and a cylinder.

These boilers are suited to homes that already have a traditional heating and hot water system that is linked to a separate hot water cylinder in place.

These boilers also require a cold water storage tank to feed the hot water cylinder as well as another tank that preserves the water level of the main central heating system.

Conventional boilers are more common in older properties with a heating system that hasn’t been updated recently; consisting of a boiler, heating controls, a hot water cylinder, a cold water storage cistern plus a feed and expansion cistern.

Get a quote

Boiler sizes

From modern apartments to sprawling farmhouses, you need a central heating boiler that suits your home and family’s needs.

We can help you choose the right size to for your central heating and hot water system. No more fighting over the shower first thing.

The most common new boiler sizes are:

  • 24-25kw
    for flats & houses with 2-3 bedrooms, with up to 10 radiators
  • 28-30kw
    for 3-4 bedroom properties with up to 15 radiators
  • 33-35kw
    for large houses with up to 20 radiators
  • 40kw+
    for larger properties with more than 20 radiators

We also supply and fit smart controls,
thermostats and timers

Heating controls

Need a new boiler on finance – including Worcester Bosch and Ideal Boilers? Get a quote from Effective Home and get it fitted ASAP.

New boiler quote

If you have any questions about the new boiler cost, pay monthly pricing or the right sized new boiler for your home, get in touch – call us on 0333 003 0703.

Why choose Effective Home?

We can advise you on the best boiler for your home and install it – at your convenience – to high industry standards. Unlike many other installers, we don’t stop there.

Our engineers will also perform an industry-leading cleaning cycle to flush debris from your system, then add a market leading inhibitor to ensure it stays clean to maximise the efficiency of your home’s heating system and life expectancy of your boiler.

See the Effective Home Promise for complete confidence in the products, value, advice and service we deliver every day.

Accredited by

Our Oftec accreditation covers Effective Home for oil-fired installations and services.

We use industry-leading ADEY system cleaners for effective results with ongoing
system protection – for your new boiler and your overall investment.

Highly recommended


How do combi boilers work?

Combi boilers work by taking water directly from the mains and heating it producing a continuous supply of water. This makes new combi boilers more energy efficient, as they don’t store hot water in a separate tank.

How do system boilers work?

System boilers work by pumping hot water from the boiler through the heating system to the hot water cylinder and radiators around your home by removing the need for a feed and expansion cistern. A hot water storage tank will always be required with a system boiler, as it needs somewhere to store the water it has heated.

How do conventional boilers work?

A conventional boiler works by igniting fuel to heat the water stored in the hot water cylinder, which is fed by the cold water storage cistern. The boiler then passes water to the central heating through a feed and expansion tank.

Read more FAQs