Water Comparison Tool home

Are you needing to replace your current hot water appliance? Are you moving and unsure about natural gas in your new home? Or are you building a brand new home? 

Compare the estimated appliance purchase and installation costs and annual running costs between natural gas hot water and other water heating appliances, including electric cylinders, heat pump cylinders, LPG and solar.

It takes just a few minutes to find out if natural gas water heating can save you money. Better still, you can opt to have these results emailed to you. Find out more

Select the option that best matches your situation

What you should know about this tool

This tool will help you compare hot water options if you live in the Wellington, Hutt Valley and Porirua, Taranaki, Manawatu, Horowhenua 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 hot water cost comparison tool, check out:

Comparison results terms

What's this tool for?

It will help you compare hot water options if you live in the Wellington, Hutt Valley and Porirua, Taranaki, Manawatu, Horowhenua 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 and average appliance purchase and installation costs. For 'moving home' review scenarios this tool will tell you estimated annual running costs as well as the estimated cost per shower.

Who is The Gas Hub?

We connect homes to natural gas from the gas pipeline in the street to your property. We can also give you information regarding natural gas so you can make well-informed, energy related decisions. We're not an energy retailer, and we’re not an appliance retailer either! The Gas Hub is a division of Powerco, the natural gas network owner across Wellington, Taranaki, Manawatu and Hawke's Bay.

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.