---
title: Replace Your Gas Boiler with a Hydronic Heat Pump
date: 2026-04-21T18:57:00+10:00
author: Geoff Pennington
canonical_url: "https://sogeo.com.au/replace-gas-boiler-hydronic-heat-pump"
section: Pages
---
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    ![Viessmann Hydronic Heat Pump]()

#  Replace Your Gas Boiler with a Hydronic Heat Pump 

If you already have hydronic heating, a heat pump can cut running costs and remove gas from your home. We design the right upgrade path, keeping your comfort, radiators, and zones.

 

 

 

  01 

 ![Stiebel Eltron Hydronic Heat Pump]() 

 

### Ditch the gas boiler—keep the hydronic comfort

Already enjoy hydronic heating? Upgrade to a quiet, efficient heat pump and go all‑electric without losing the feel you love. We design a clear, practical path for Melbourne homes.

### Will my existing radiators work?

In many homes, yes especially with correct sizing, balancing. We assess emitters, room loads, and flow temperatures. Where needed, we’ll recommend panel upgrades or in some cases increases pipe sizing to maintain the optimal delta T of the system.

 

 

 ### What the Upgrade Involves

- Site audit: radiator/pipe suitability, heat loss analysis.
- Outdoor unit siting &amp; clearances; buffer/thermal store options
- Electrical allowance and controls integration
- Commissioning and tuning for Melbourne winter performance

### Will My Existing Radiators Work?

- Most modern radiators perform well with low-temp systems if correctly sized and balanced
- We can adjust emitters, add panels when needed.

### Noise, Space &amp; Aesthetics

- Quiet outdoor units with careful placement and anti-vibration mounts
- Minimal internal footprint; neat plant layout and insulated pipework

### Running Costs &amp; Payback (Indicative)

- High-efficiency heat pumps deliver strong seasonal performance; payback depends on current gas usage, electricity tariff, and insulation level
- Ask for a data-backed estimate tailored to your home

### Rebates &amp; Incentives

- Heat pump **hot water** may attract VIC rebates/discounts when upgraded concurrently (separate measure). We’ll advise where it makes financial sense.

### Straightforward Process

1. Free upgrade assessment (plans/photos welcome)
2. Detailed proposal with options &amp; itemised costs
3. Install, commission, and training on controls

 

 

  01 

 ![SoGeo Team At Work]() 

 

### Is It Worth It?

For most Melbourne homes, the payback period for switching from gas to a hydronic heat pump is between four and seven years. From that point forward, you continue to save on running costs while benefiting from a more sustainable, low-maintenance heating solution.

As Victoria moves toward full electrification and gas phase-outs, upgrading now helps future-proof your home against policy changes and rising gas tariffs. When combined with solar PV, the cost savings are even more compelling.

SóGeo specialises in upgrading Melbourne homes from gas to electric hydronic heat pump systems. Whether you have existing radiators, underfloor heating, or are building new, our team can deliver a tailored, high-performance solution.

 [Get a fixed quote from SóGeo.](https://sogeo.com.au/contact-us) 

 

## Our Partners

   [ ![Reece](https://sogeo.com.au/uploads/suppliers/_AUTOx96_crop_center-center_none_ns/Reece.png) ](https://www.reece.com.au/)   [ ![Stiebel Eltron](https://sogeo.com.au/uploads/suppliers/_AUTOx96_crop_center-center_none_ns/Stiebel-Eltron.png) ](https://www.stiebel-eltron.com.au/)   [ ![Mitsubishi](https://sogeo.com.au/uploads/suppliers/_AUTOx96_crop_center-center_none_ns/Mitsubishi.png) ](https://www.mitsubishielectric.com.au/)   [ ![Purmo](https://sogeo.com.au/uploads/suppliers/_AUTOx96_crop_center-center_none_ns/Purmo.png) ](https://www.purmo.com/au)   [ ![Viessmann](https://sogeo.com.au/uploads/suppliers/_AUTOx96_crop_center-center_none_ns/viessmann_wordmark_rgb_1_vitorange.png) ](https://www.viessmann.com.au/)   

 

  

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