No More Diesel & Gas!

Swap Out Your Old Gas or Diesel Boiler For Heat Pump Technology

We are seeing a clear shift away from gas and diesel boilers towards hot water heat pump systems in both residential and commercial applications. Hot water heat pumps are the most ideal replacement for old gas or diesel boilers. When planned correctly, they provide safe, reliable hot water for everyday use. Hot water heat pumps are quickly becoming the standard, and for good reason. Most new builds have transitioned away from the traditional energy systems, and existing builds are being replaced with modern, sustainable alternatives. They offer a smart, future-focused solution that aligns with efficiency goals and changing building standards.

Why Make The Change Now?

The main drivers are not only a growing awareness of energy efficiency and emissions, it’s also the constant rising cost of gas and diesel. Better performance and reliability from the advancement of newer heat pump technologies means these systems are now capable of performing efficiently enough to support radiator heating as well as hot water needs. We see this as not just about “going green”, it’s about being practical. Hot water heat pumps are not only proven to reduce energy costs, they’re safer to operate, and they can be fitted in most existing homes with minimal disruption. Customers would typically see a reduction of up to 65 per cent in their hot water costs, depending on the alternative.

How Gavin Lowe Energy Can Help

We have completed many projects where older boiler systems are being replaced with hot water heat pumps. The feedback has been really positive from clients who are noticing the much lower energy use (and expense!) and a much quieter, cleaner operation. These systems are perfect for homes, apartments and commercial sites like offices, schools, hotels and aged-care facilities. Proper
sizing and setup ensure the system delivers consistent, energy-efficient hot water throughout the year. The key is good design and installation by experts in this field: correct sizing, buffer storage and control setup are all crucial for consistent year-round results.

Come and visit us. We have a working example of this technology on display in our refurbished showroom at 48 Battersea Street in Sydenham, Christchurch.

There is an operational hydronic hot water heat pump system in the showroom at 48 Battersea Street, Sydenham

Watch our video on a Daikin Hot Water CO2 unit installation https://drive.google.com/file/d/1hj0JFHEaj-fNeRVdgaINd0CylSr_cop1/view

Read about swapping out your old diesel or gas hot water heating in Abode Abode_Issue 80_Jan Feb 2026_Trends_Gavin Lowe

Check out our listing in the Circular Economy Directory with The Sustainable Business Network https://sustainable.org.nz/circular-economy-directory/solutions/gavin-lowe-energy/

For more information on our hydronic and hot water heat pump heating options, see the page on our website https://gavinlowe.co.nz/hydronic-heating/

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