Combi Boilers
Compact, Efficient and Practical Heating Solutions.
Individual gas-fired solutions that provide space heating and domestic hot water in houses, apartments, villas and small commercial premises.
Request a Quote for Your Project → Compare Boiler and Combi Options →A combi boiler covers individual heating and hot water needs in a single appliance.
Choosing the right combi boiler means considering the floor area, insulation, hot water use and the radiator or underfloor heating system together.
A combi boiler burns natural gas to heat the system water and supplies it to radiators, underfloor heating circuits or the domestic hot water circuit.
For the client, the advantage of a combi boiler is independent heating and hot water without a central system. However, details such as appliance capacity, flue type, system cleanliness and the room thermostat have a direct effect on consumption.
Which combi boiler suits which use?
A combi boiler is not chosen by floor area alone. Hot water demand, usage habits, the type of installation and energy efficiency must all be considered together.
Condensing Combi Boilers
Condensing combi boilers achieve higher efficiency by recovering the energy of the water vapour in the flue gas produced when natural gas is burned.
With a suitable installation, the same heat demand can be met with lower gas consumption. They are particularly advantageous in low-temperature systems.
Energy consumption and fuel costs
| Suitable building types | Apartments, villas, small offices, modern well-insulated homes |
|---|---|
| Technical advantage | High efficiency, modulating operation, low flue gas temperature |
| Client benefit | Potential for lower consumption, quiet operation, comfortable hot water |
Storage Combi Boilers
Storage combi boilers keep a set volume of domestic hot water ready for use. They can provide greater comfort when hot water is drawn at several outlets at the same time.
They are worth considering for large families, homes with several bathrooms and buildings where hot water comfort is a priority.
Hot water comfort and consumption
| Suitable building types | Villas, large apartments, homes with several bathrooms, boutique accommodation |
|---|---|
| Technical advantage | Higher hot water capacity, stored hot water, comfortable flow |
| Client benefit | Hot water at several outlets simultaneously, more stable temperature |
What should you consider when choosing a combi boiler?
1. A combi boiler is not chosen by floor area alone.
The home’s insulation, radiator size, hot water habits and number of bathrooms directly affect the required capacity.
2. A condensing combi boiler is more efficient with the right installation.
The condensing effect increases when the return water temperature is low. This is why the design of the installation and its operating temperatures matter.
3. A room thermostat helps reduce consumption.
It allows the combi boiler to run according to demand rather than at high output all the time.
4. System cleanliness and maintenance are important.
Dirty system water, a clogged filter or unbalanced radiators can make the combi boiler work harder.
Which boiler or combi boiler is right for you?
Enter your building, fuel supply and hot water demand to see the suitable boiler type and approximate capacity instantly.
Combi boiler brands we install and maintain
Click a brand to see its product ranges and the service we provide.
Let’s determine the right combi boiler system for your home together.
We will plan the most suitable combi boiler solution based on the size of your home, the number of bathrooms, the existing installation and your hot water demand.