All-electric HVAC Heating and Cooling Advice

Hydrosol's process map for all-electric heating and cooling design, and supply and install quote


Contact Hydrosol for HVAC advice for your all-electric heating and cooling project. Hydrosol has the experience and qualifications to provide you with the advice you need. Refine your project design at the outset for the best outcome.

There are many new all-electric technologies coming onto the market and many ways to improve the performance of your house. Consideration of your own preferences and budget is important too.  Therefore, we take a holistic approach to help you determine your needs.


Contact Us

Contact us for complimentary general advice or specific project advice for a fee. Our project advice covers:

  • Review of your building plans and preferences
  • Review of your heat load
  • Discussion (phone initially)
  • Written recommendations and Indicative Quote
  • Contractor referral for Final Quote (with reference to your Indicative Quote)


Reduce design rework and project variations with some extra effort spent thinking through your needs. Experience shows that time spent on getting your design right from the start pays off with better outcomes later:

  • New Build: offers greatest scope for designing a high-performance, all-electric house
  • Renovation: provides scope to fix issues and design afresh
  • Staged Plan: may take several years to complete


Consider hydronic heating and cooling with solar power if you live in a cool temperate climate with cold winters and dry summers. This is the typical climate of Southern and inland Australia.

Hydronic Heat Pumps

Heat pumps provide hydronic heating and cooling in reverse cycle, ideally powered by solar. In summer, heat pumps absorb indoor heat in reverse cycle and transfer it outside.

Hydronic heat pumps transfer heat very efficiently because water is 3,300 times more effective at transferring heat than air. This is why hydronic heat pumps only need small water pipes for underfloor hydronic circuits or radiators. 

Hydronic heating and cooling using a heat pump offers these advantages:

  • Ideal for all-electric homes
  • Ideal for cool temperate climate
  • Ideal for solar power
  • Low operating costs
  • Low greenhouse emissions
  • Allergen free
  • Most comfortable radiant heat
  • Cooling in reverse cycle
  • Adds value to your house
  • Silent indoors

Air Conditioning

Air conditioners are a cost effective, all-electric means of heating & cooling using your solar power. Choose between Split, Multi-Split, VRV/VRF and Ducted systems depending on your needs, budget and house design.

Consider combining air-conditioners in bedrooms with radiant hydronic heating and reverse cycle cooling in living rooms. 


HRV systems reduce heat loss in winter and heat gain in summer.

Install a Heat Recovery Ventilation (HRV) system if your house is very air tight. This is most important if the thermal performance rating of your house is 7 Stars or more. Air exchange is also important to reduce air borne allergens and even viruses as we have seen with the Corona Virus in 2020.

Make your house feel fresh and airy with HRV systems.

Solar Power

Combine your heat pump or air conditioner with solar power to reduce your operating costs and greenhouse emissions.


Install a solar battery to absorb your excess solar power.

Install a larger buffer tank with your heat pump as an additional thermal battery.

Your solar and thermal batteries will transfer stored electrical and thermal energy heating and cooling at night.

Ceiling Fans

Install ceiling fans to improve your hydronic heating and cooling system. Fans in winter mode will slowly recirculate rising heat reducing your heating costs by around 15%.

Fans in summer mode will make you feel about 4 degrees cooler. Therefore, you can increase your inside set temperature to reduce your heating costs.

Ancillary Heating

Add ancillary heating sources if possible or opportune. If you have low cost access to firewood then fireplace wetbacks are opportune. These are water jackets installed inside a firebox or around a chimney flue. They provide additional heat to the buffer tank of the heat pump. 

Passive heat radiation from north and west facing windows is a free source of ancillary heating.

Ancillary heating sources are typically variable. However, a heat pump can compensate for this by increasing or decreasing its heat load automatically.

Other considerations

Other points for all-electric heating and cooling advice:

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