See how different water heating systems compare. Customise the results by selecting 'Edit details' under each system and answering a few questions. Blank fields indicate that more information is required, enter this by selecting 'Edit details' under each system.
Sort your results by selecting the column headings. Use the buttons at the end of the tool to print or email a copy of your results.
Upfront CostsUpfront costs = purchase + installation costs. A range is shown as there can be differences in the size and quality of the system and complexity of installation.
Yearly Running CostsRunning costs = the likely cost to run the water heating system each year. This is calculated based on how much hot water you use and the system type and efficiency.
Lifetime CostsLifetime costs = running costs + purchase and installation costs, over ten years (we have assumed a life span of ten years for the calculations in this tool, although many systems may last much longer). We have also allowed for the cost of interest, should you take out a loan to pay for it, or the missed interest earnings if you had left the money in the bank instead. The lower price is based on buying and installing a highly efficient system at a low price. The higher price is based on buying and installing a low efficiency system at a high price.