Choosing a new boiler is a big decision. The right choice keeps your home warm, gives you enough hot water and keeps running costs sensible. This guide explains the main options.
Understanding the different boiler types
There are three main types of boiler: combi, system and regular.
- Combi boilers are the most popular in the UK. They're compact and provide heating and hot water directly from the mains, with no separate water tank — ideal for smaller homes.
- System boilers work with a hot water cylinder but no loft tank. Stored hot water means several taps and showers can run at once, which suits homes with more than one bathroom.
- Regular boilers, also called conventional or heat-only boilers, work with a hot water cylinder and a cold water tank. They suit homes with traditional heating systems and higher hot water demand.
Our boiler installation service covers homes across London, and we'll match the system to your property.
Key considerations when choosing a boiler
- The size of your home: the number of bathrooms and people affects the type you need. Smaller homes often suit a combi; larger ones may need a system or regular boiler.
- Energy efficiency: modern condensing boilers are far more efficient than older models. See our guide to boiler efficiency ratings.
- Installation and running costs: weigh up the upfront price against long-term servicing and running costs.
- Future-proofing: choose a boiler compatible with smart controls for better efficiency and convenience.
Benefits of professional boiler installation
- Expert workmanship: a correctly sized, properly commissioned boiler is less likely to give trouble.
- Peace of mind: a Gas Safe registered engineer ensures the installation is safe and legal.
- Warranty support: manufacturer guarantees usually depend on professional installation and annual servicing.
- Aftercare: ongoing servicing keeps your boiler in good condition throughout its life.
Maintaining your boiler for best performance
- Annual servicing: book a yearly boiler service to catch problems early.
- System cleaning: a MagnaCleanse removes sludge and debris to protect your new boiler.
- Pressure checks: keep an eye on the pressure gauge and follow your boiler manual.
- Thermostat upgrades: smart controls help you heat your home only when you need to.
Why choose Nexa Heating?
We're a local team of Gas Safe registered engineers who know the homes of London. We prioritise urgent breakdowns, give clear fixed-price quotes and cover everything from installation to repairs and servicing. Compare the boiler brands we install or ask for a free quote.
