16th June, 2022
In this article we will discuss the topic of different boiler types, specifically system boilers vs combi boilers, explaining how each new heating system type works as well as their pros and cons.
A system boiler links with a hot water storage cylinder to provide a home with central heating and hot water.
It does this by taking cold water directly from the mains (instead of a separate feed tank) and heating it via an internal heat exchanger, this transfers gas energy to water.
The hot water is then moved to the hot water cylinder for storage.
Unlike some regular boilers, such as oil or heat only boilers, that use bulky external components, with a system boiler the majority of components are integrated within the appliance.
The only external part is the aforementioned hot water storage cylinder; This is a much smaller unit than some of the other hot water storage tank systems used by regular boilers, these tend to eat up loft space.
Combi (combination) boilers also link a home’s central heating system and water heating, however they are a single unit, with all components integrated within the boiler.
The combi signals a sensor upon hot water demand, then takes water directly from the mains and the heat exchanger heats it for distribution to water outlets. This means there's no accompanying cylinder or hot water tank.
System Boiler Pros
Combi Boiler Pros
System Boilers Cons
Combi Boilers Cons
As with any appliance, new boiler and installation prices can vary due to a number of contributing factors including brand, model, merchant and engineer rates.
In general, the average price for new system boilers (including installation rates) in 2022 is around £2000 with the equivalent combi boiler system prices in the £1975 region.
So not too much to separate the two in terms of initial cost, financial impact shouldn't hold sway over practicality in the case of these differing options.
The decision of whether to buy a new system boiler or new combi boiler should be dependent on the particular requirements you or your home need. Both as previously discussed aren't a million miles away in terms of finance with the combi being the slightly cheaper option.
If saving space is your number one priority, again both options are economical in terms of proxemics, with the combi being the most compact as a single unit.
The system boiler however has a marginally quicker speed of flow, and both boiler types are at their most optimum with modern plumbing infrastructure.
The choice may simply come down to a system boiler being more effective for larger homes while the combi is suited to smaller properties; both are fantastic modern heating system options whose pros outway their cons especially in relation to older conventional boilers.
If you’ve liked what you've been reading and want an old boiler replaced, or just fancy an upgrade, get a free quote on a wide selection of boilers with gas safe registered installation here at iHeat.
Get a quick fixed price quote in less than 60 seconds.Start your quote
When preparing for winter, taking steps to ensure your boiler is ready may be the last thing you consider.
Both a power flush and chemical flush are forms of system cleaning you can use for your central heating system.
Discover the different typeof boiler flues and what your home currently has and if it is to regulation.