How Do Central Heating System Work?

under floor heating work

Providing warmth and comfort for their homes is the topmost priority of most homeowners like yourself in the United Kingdom, meaning that they rely on central heating systems to efficiently heat their homes without boring a hole in their pockets.  

However, before we answer how central heating systems work, we first need to know what it is and what kind of heating system you have in your home.  

What is a Central Heating System? 

Central heating simply means that your home is heated from a central location, in this case, a boiler, and spread throughout your home via pipes connected to the boiler. The heat circulating in your home, usually through connecting pipes from a boiler, is adjusted via thermometers, radiator valves, or time controller, known as a Central Heating System. 

According to the Office of National Statistics, 95% of homes in the UK have central heating, with 83% of those heating systems powered by natural gas from the national gas network.  

Which Heating System Do You Have? 

Generally, three central heating systems are available in the UK, wet and electric storage systems, while the demand for warm air systems is waning. 

Wet System 

There is a high probability that you have a gas-powered wet central heating system. If you have a wet system, your boiler uses fuel to heat water circulated in your home via radiators or underfloor pipes. 


  • Cost-effective 
  • 3X cheaper than electricity 


  • Pricey to install 
  • Requires servicing and maintenance 

Electric Storage Heaters 

Bricks that are highly energy-efficient in storing vast amounts of heat fill up radiators charged overnight with off-peak electricity to heat up the home during the daytime when needed. Electric storage heaters are wall-mounted and look just like a radiator. 


  • Cheaper to install 
  • Requires little servicing 
  • Energy-efficient 


  • Eat up wall space 
  • Disrupts interior decor 

Warm Air System 

Usually found in older properties, warm air systems suck cold air from the outside, heated by your boiler, and the heated air is circulated throughout your home via ducts. 


  • Efficient 
  • Heating a room is very swift 
  • Eliminates damp  


  • Dwindling popularity 

How Does Your Central Heating Works?

Pipes connected to a heating source (boilers in most cases) are used to transmit heat around the home either via radiators or underfloor heating. There are four parts to your heating system: a boiler, pump, pipes, and radiators of underfloor heating. 

This is simply how it works; your boiler heats up the water, and a pump transports the heated water from your boiler to your radiator or underfloor heating via pipes and returns the water back to the boiler to be heated again. 

How Much Does Central Heating Cost?

If there is no central heating system on your property, then you will need to purchase one. 

  • A boiler 
  • Radiator or Underfloor Heating 
  • Pipes 
  • Cost of Labour 

The cost of the loft conversion service you acquire depends on various aspects.    

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