FAQs | Coastline Heating and Cooling

Frequently Asked Questions

Hydronic Heating


Is Hydronic Heating cheaper to run than Ducted Heating?

A Hydronic Heating system will be more efficient to operate than a Gas Ducted heating system because the boiler is generally more efficient and the thermal losses in a Hydronic Heating system are less than in a Ducted system.

Ducted Heating & Cooling


How would I know if I can have a Ducted Heating or Air Conditioning system in my home?

If your home has sufficient space in the roof or under the floor, yes you most probably can.
If you want a Ducted Refrigerated system, we will need to check the electrical supply into the switchboard to determine the size of the system.

If you want Ducted Gas Heating, do you have natural gas onto the property or available in the street? or do you want to use LP Gas?

We will provide a FREE inspection and assessment to determine the ability to install a Ducted System in your home.

Can I add Evaporative Cooling to my existing Ducted Heating system?

No the heating system cannot have Evaporative Cooling added on to it.

Can I add heating to my home Evaporative Cooling system?

No, unfortunately the Evaporative Cooling system is not compatible to include heating to your home.

Can I add Refrigerated Cooling to my existing Ducted Heating system?

When the original heating system was installed, if the ducts and the fan in the heater were upsized, then yes we can confidently add on cooling.

Heat Pump Hot Water


Why install a Sanden Eco heat pump?

– The Sanden Eco is Australia’s most advanced and efficient hot water system. This hot water technology utilises an Australian-made stainless steel tank and a Japanese-made compressor.
– A Sanden Eco heat pump system can save up to 78% of your hot water energy costs rain, hail or shine!
– It is better for the environment. Hot water accounts for around 30% of a household’s energy consumption making it a big contributor to our carbon footprint.
– It increases the value of your home.
– Some homeowners want to get away from gas altogether; the Sanden Eco makes this feasible.
– The Sanden Eco works wonderfully well in conjunction with solar power. It acts as storage, allowing you to use the power you generate rather than feed it back to the power company.

Do rebates apply to the Sanden Eco Heat Pump?

– Absolutely. In fact, there are multiple schemes like STCs and VEECs providing incentives to install heat pumps. The Sanden Eco (due to its very high efficiency) receives the highest rebate values, which vary from $1100 – $2100 depending on location.
– Schemes have recently expanded to include commercial buildings and council facilities.
– Rebate schemes can be confusing, but NewGen will help make this simple. We can work out the maximum available rebates that can be applied to your particular situation and can offer the rebates as an up-front discount.

Are they really that quiet?

Yes. Sanden Eco heat pumps are wonderfully quiet – only 38dB, which is about the sound of a modern refrigerator. Other heat pumps are significantly noisier at 50dB and above.

Do Sanden Eco heat pumps work in very cold weather?

Yes. Sanden Eco heat pumps are extremely efficient even in cold climates. They are used in alpine areas in Japan and the coldest regions of Australia. Because of the C02 refrigerant they can still operate efficiently in ambient air temperatures all the way down to -10C (yes minus 10 degrees celsius!)
Because of its efficiency in very cold weather the Sanden Eco does not require a backup element.

Can I operate the Sanden Eco on off-peak power?

Yes. You can control the operating time with your off-peak meter, or use the Sanden Eco’s in-built timer.

Can I operate the Sanden Eco in conjunction with my solar power?

Yes. PV solar power owners love the Sanden Eco. We can set the heating time to 11am – 3pm via the Sanden Eco’s in-built timer thereby coming on when your PV solar is most productive.
Sanden Eco’s power input is only 1kW and usually needs just 1–3 hours to top up heat depending on your family size / number of long-shower loving teenagers.

Can the Sanden Eco heat pump be installed inside?

The tank can be installed inside, but for practical reasons it is normally installed outside.
The heat pump compressor must be installed outside in a well ventilated area. In a confined space it would essentially refrigerate the area and efficiency would suffer greatly.

What is the maximum distance between the Sanden tank and the Sanden heat pump compressor?

4 metres total pipe length with no more than six bends.
No more than 3 metres height difference between tank and compressor.

Can Sanden Eco heat pumps work with rain water tanks?

Yes. Water quality is very important for longevity so filters must be installed that provide adequate protection from particles in the water and some areas may need to have filters to mitigate acidic water.
Water pressure must be a minimum of 200 kPa to ensure efficient functioning.

Split Systems


What is a Split System?

A split system is a 2 piece air conditioner, generally with an indoor wall mounted unit (evaporator) connected to an outdoor unit (condenser) located directly behind the indoor unit. Refrigerant pipes and wires connect between the indoor and outdoor unit.

What is a reverse cycle system?

Reverse cycle means the air conditioner has the ability to COOL and HEAT.

What is a split cycle air conditioner?

A split cycle is not actually a correct air conditioning term, it is a combination of both of the above terms.

What size system do I need?

The correct size air conditioner is determined by a combination of factors.The size of the room, aspect, ground or first story, window size, etc. We provide a FREE in home quote to calculate the most effective and efficient air conditioning system for your needs.

How much will it cost to run my air conditioner?

This depends on many things including whether the unit is sized well enough for the room. Other things being equal, buy a unit with the highest star rating for the power output you need. The more stars it has, the more energy efficient your air conditioner is, the less it will cost you in power bills and the less damage you are doing to our environment.

What is an inverter?

An inverter compressor is the motor in the outdoor unit. An inverter reaches the desired room temperature faster and then constantly adjusts to maintain perfectly even comfort level. Because of its energy efficency, it is up to 30% cheaper to run than conventional air conditioners

What is a ducted split system?

A ducted split system is still a 2 piece air conditioner but with the indoor unit located in the roof space or under the floor. Ducting transfers the air to ceiling or floor outlets in the home.

Do I need natural gas for a split system?

No, split systems use refrigerant not gas,

Can I add another indoor unit to my existing outdoor unit?

No, only if the system you bought is a “multi head” system which includes more than one indoor head with the system.

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