Water Comparison Tool home

Compare the differences between natural gas water heating and other water heating appliances. It'll only take you a few minutes to find out if natural gas water heating can save you $$. To get started, just select the box below that best matches your current situation. Find out more

Select the option that best matches your situation

What you should know about this tool

This tool will help you compare your water heating choices if you live in the Wellington, Hutt Valley and Porirua, Manawatu, Taranaki or Hawke's Bay regions. It provides useful information so you can decide if natural gas is the right choice for you. Before using this tool, check out:

Some stuff you should know

What's this tool for?

It will help you compare your water heating choices, if you live in the Wellington, Hutt Valley and Porirua, Manawatu, Taranaki or Hawke's Bay regions. It provides useful information so you can decide if natural gas is the right choice for you.

What will this tool tell me?

Estimated average running costs, average appliance purchase and installation costs, and estimated carbon emissions. For new mover review scenarios this tool will tell you estimated annual running costs, estimated cost per shower, and carbon emissions.

Who is The Gas Hub?

We're not an energy retailer, and we’re not an appliance retailer either! The Gas Hub is a division of Powerco Ltd, set up to provide useful information on all things natural gas so you can make informed energy related decisions.

Disclaimer: The information displayed in this tool is based on a number of assumptions. The tool and the outcomes of it should be treated as a guide only.