System Boiler Guide 2020 | We Compare Prices on 64 Boiler Models
Overview of System Boilers
HOW TO USE THIS GUIDE
Find your best system boiler
Use the tables below to find your best sysem boier. The tables are arranged so that you can easily find your property size and then find who offers the best boiler package for your budget. The tables show boiler performance alongside warranty period and price so you can find the best value boiler. Most boiler manufacturers produce one or two models of system boiler with outputs between 12kW and 40kW. At the smaller end, the price difference between the budget and premium models is quite small. However the disparity grows signficiantly for the larger models.
Guide to using the boiler tables
In the example table below, it is easy to see that the Vaillant ecoTEC plus at £772 is great value with a 7-10 year guarantee, compared the next cheapest and next most expensive, which only offer a 2 year warranty.
|1-2 bed flat||Price||Standard warranty||Free extended warranty||Maximum heating output||Minimum heating output|
|Glow Worm System||12||£690.00||7||7||12||4.5|
|Vaillant ecoFIT pure system
|Price||Standard warranty||Free extended warranty||Maximum heating output||Minimum heating output|
|Potterton Promax System||32||£948.00||2||2||34||9.4|
|Worcester Bosch 8000||35||£1,352.00||5||10||35||3.5|
|Vaillant EcoTEC Plus System||37||£1,312.00||5||10||37||7.1|
|Viessmann 100-W System||35||£1,511.00||5||5||35||5.4|
|Viessmann 200-W System||35||£1,571.00||5||5||35||1.9|
When is a system boiler right for my home?
System boilers suit properties with multiple bathrooms, particularly where they are in use simultaneously, for example people showering in the morning. System boilers provide good hot water flow rates from a high performance cylinder. Many new build properties have system boilers with unvented hot water systems, replacing your boiler will be a straight swap. For those considering installing a system boiler in place of their combi boiler, this is worth while when you are extending and adding bathrooms. You will need to find a spot for the hot water tank and preferrably close to the bathrooms. For those with a conventional heat only boiler, you will need to change the boiler and the copper cylinder.