Hydronic Heating Victoria

Hydronic Heating Victoria

Specialising in SOLAR HYDRONICS via Heat Pumps

and SOLAR ELECTRICITY
 
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Welcome, to a Warm, Comfortable, Energy Saving Home . . .

It's not good news for any of us that home energy costs are at an all time high and with soaring GAS prices, what can we do about it? These pages will give you an insight into our range of energy efficient solutions which could save you many hundreds of dollars each year.

Heating your home with panel radiators/convectors

Hydronic Central heating
If designed, installed and used correctly, hydronic central heating can be economical and highly effective in most homes. (We can provide you with a no-obligation quote for a heating system designed for your home)

Water is heated, and then pumped through piping to panel radiators or convectors positioned in each room. Heat is transferred directly from these to the room air.

Benefits include:

  • Manual or automatic control valves to each panel allow individual rooms or zones* to be heated independently
  • Panel radiators provide effective heating for rooms with high or low ceilings
  • Response time is generally good, and you will feel warm within 30 minutes.
  • Low maintenance requirements.
  • The proven effectiveness of central heating - widely used in Europe for almost a century.

How much does it cost?

Generally, the larger the project the lower the overall cost per square meter.

Radiators

Radiators are sized based on the area to be heated, and the temperature of the water fed to the radiators.
Traditionally, using GAS or Oil burners generated very hot water, maybe 85oC+ but being more "health and safety" conscious - systems are being designed for 60oC water temp. To compensate for the lower water temperature, the radiator size is increased. This adds very little to the overall cost installed cost.

  • Supplied and installed using a GAS boiler at 85oC+, would be from about $1800 per radiator
  • Supplied and installed using a GAS boiler at 60oC, would be from about $2100 per radiator
  • Supplied and installed using an air-sourced heat-pump at 55oC, would be from about $2500 per radiator

Water Heaters (boilers)

Note: Areas given are approximate for 5 star homes. Please call for sizing confirmation

Please Note: the following prices are very much a rough guide, based on an A$-US$ exchange rate of A$0.73c.
*SIZING IS FOR SQM OF FLOORSPACE, IN NEW 5-STAR HOMES, BELOW 500m ALTITUDE, AND WITH STD CEILING HEIGHT OF 2.4M
CALL FOR FURTHER SIZING INFORMATION

Average system pricing includes stainless steel buffertank, 1x primary circulation pump, 1x secondary (zone) pump, 1x expansion sub-system, and 1x wall thermostat, but does not include the radiators, piping, delivery or installation:

  • An SX-04 (1kW input) 240v, 100Lt buffertank, system for up to 35sqm floor space is about $6,400
  • An SX-06 (1.4kW input) 240v, 100Lt buffertank, system for up to 55sqm floor space is about $6,600
  • An SX-08 (1.4kW input) 240v, 100Lt buffertank, system for up to 65sqm floor space is about $6,900
  • An SX-12 (2.3kW input) air-sourced heat-pump (240v) system for up to 90sqm floor space is about $8,300
  • An SX-13CC (2.6kW-3kW input) air-sourced heat-pump (240v) system for up to 95sqm floor space is about $9,100
  • An SX-13CCZA (2.6kW-3kW input) with super quiet, super efficient Ziehl-Abegg OWLET fans $10,000
  • An SX-17CC (3kW-4kW input) air-sourced heat-pump (240v only) systemfor about 130sqm floorspace is about $10,300
  • An SX-17CCZA with super quiet, super efficient Ziehl-Abegg OWLET fans $11,300
  • An SX-18 (2x2.6kW-3kW input) air-sourced heat-pump (240v) system for about 150sqm floorspace is about $10,500
  • An SX-20-3 (2x2.6kW-3kW input) air-sourced heat-pump (3ph only) system for about 160sqm floorspace is about $11,200
  • An SX-23-3 (2x2.6kW-3kW input) air-sourced heat-pump (3ph only) system for about 190sqm floorspace is about $11,900
  • An SX-24 (2x2.6kW-3kW input) air-sourced heat-pump (1ph or 2ph) system for about 200sqm floorspace is about $13,400
  • An SX-24ZA with super quiet, super efficient Ziehl-Abegg OWLET fans $14,300
  • A V25 (2x2.6kW-3kW) air-sourced heat-pump (1ph or 2ph) system for up to about 210sqm floorspace is about $15,000
  • A V25ZA with super quiet, super efficient Ziehl-Abegg OWLET fans $16,200
  • A V35 (2x3kW-4kW) air-sourced heat-pump (1ph or 2ph) system for about 300sqm floorspace is about $16,200
  • A V35ZA with super quiet, super efficient Ziehl-Abegg OWLET fans$17,300

High capacity models

The following units are very powerful, however for domestic situations (houses over 280sqm heated floorspace) it may be more appropriate to use multiple smaller systems.

Average system pricing includes stainless steel buffertank, 1x primary circulation pump, 1x secondary (zone) pump, 1x expansion sub-system, and 1x wall thermostat, but does not include the radiators, piping, delivery or installation:

  • A V50-3 (2x4kW-6kW) air-sourced heat-pump (3ph only) system for about 400sqm floorspace is from about $16,700
  • A V50-3ZAwith super quiet, super efficient Ziehl-Abegg OWLET fanst $18,300
  • A V60-3 (2x5kW-7kW) air-sourced heat-pump (3ph only) system for about 480sqm floorspace is from about $18,800
  • A V60-3ZAwith super quiet, super efficient Ziehl-Abegg OWLET fans$20,700

General advice

  • We do NOT recommend using under-capacity Heat-Pumps boosted by GAS/LPG/electric elements, as these "HYBRID" systems may considerably reduce efficiency and increase running costs, instead use the correct sized heat-pump from our extensive range (up to over 100kw output)
  • We do not recommend using multiple domestic-type storage tank heat-pumps for hydronics, as these work best with fairly static water - hydronics requires continuous water flow, better suited to co-axial heat exchangers which are more efficient
  • We DO recommend using Solar Electricty to offset heat-pump use!
  • Although an LPG boiler is about the same cost as a natural gas boiler - the LPG operating cost is too high - use air-sourced Heat-Pump (only use LPG if no mains electricity, but beware!

For existing homes with radiators sized for GAS/LPG/Wood boilers and water temperatures above 60C, we CAN supply high-temperature 75C heat-pumps, but running a heat-pump at these temps is less efficient than running at 55C-60C. Please ask for more details on High Temperature hydronic heat-pumps.

Free quote, email your house plan here



standard radiator Hydronic central heating is:
  • Safe - There is no danger of burn or scald as the system is fully enclosed with radiator temperatures well below boiling point. The surface temperature of natural convectors is pleasantly warm to the touch.
  • Efficient - Our "New-Age" heat-pump systems require minimal energy to maintain a comfortable temperature.
  • Quiet - Natural air flow will caress your body with warmth,



Home heating with water filled radiators

why we don't use solar tubes why we don't use solar tubes

THEY DON'T WORK WELL ENOUGH IN WINTER!

Ask this question of your Solar Hydronics supplier:
Over the heating season, what percentage of the total energy will come from the Solar, and how much from the "back-up" heater ?

For most homes, solar is just not a cost-efficient option for hydronic heating, typically providing only about 20% of the energy required. (unless you have massive water storage - thousands of litres in insulated tanks, to collect and store lots of energy when it available, and deliver it over winter)


In normal winter conditions, a Cold Climate Hydronics heat-pump will use less energy than the booster required in a solar-boosted hydronics system. If you are in a natural gas area, you'll probably just use a straight gas boiler, if no gas use a correctly sized hydronic heat-pump.

We recommend Air-Sourced heat-pumps over Solar and Geothermal heaters, WHY?
click here for a more detailed explanation.

If you don't have adequate power supply for the required heat-pump, only then would you choose an LPG boiler.

Note: The only other exception to this would be if the energy harnessed over summer could be fully utilised for a secondary purpose such as Pool heating. The additional cost of including a solar tube array system may then be justified.

  • In summer, evacuated tube systems can provide 100% of the energy required for domestic potable hot water
  • In winter and in the colder climates they will need to run their boosters to ensure a safe water temperature.
  • In the Southern States, home heating in winter requires far more energy than potable hot water.

In the Southern States where winter heating is a necessity, evacuated tubes just do not provide enough energy when needed most, and for most home installations, can therefore at best only provide a token input.

  • If you are in a natural gas area, you'll probably just use a straight gas boiler, if no gas use a heat-pump.
  • In normal winter conditions, a heat-pump will use less power than the booster required in an evacuated tube hydronics system.
  • If you don't have adequate power supply for the required heat-pump, only then would you choose an LPG boiler.

Natural GAS Boiler

domestic slab heater

Nothing to get excited about here, its just a GAS boiler!

  • Cheap to buy, cheap to run etc. etc.
  • Combo models available for domestic hot water AND hydronics in single unit
  • Available in various sizes to suit system demand
  • LPG models also available - but LPG is VERY expensive to run - recommend using air-sourced heat-pump if adequate electricity supply available


Heat-Pump Water Heaters:

Geothermal

Below ground, the temperature doesn't fluctuate as much as above ground. We can take advantage of that by burying pipes underground to extract heat. Generally, the deeper you go the ground gets warmer. The problem with Geothermal systems is that the cost of burying the pipes far outweighs the operating cost savings compared to an air-sourced heat-pump. (you will never save enough in lower operating costs, when compared to the installed cost of an air-sourced system)



Air-Sourced

HEATING THE NATURAL WAY:
An air-sourced hydronic heat pump uniquely extracts solar heat energy found abundant in the in air and transfers it to water.

The completed system is comprised of:

We create a primary circuit through the heat-pump and buffertank, and secondary circuit through the buffertank and radiators

Hydronic radiator heater Hydronic radiator heater



These "21st Century" Hydronic Water Heaters are unlike any other, because:
  • They have sensationally low running costs
  • They can keep your home warm all winter regardless of weather
  • They are very durable and robust
  • Various sized units from 7kw to 200kw output
  • We don't use under- capacity units boosted by electric elements

How does it work?

Our air-sourced hydronic heat-pump water heaters operate on a similar principle as a refrigerator or reverse-cycle air-conditioner.

An Ecological Solution:

HEATING THE NATURAL WAY: 
An air-sourced heat pump uniquely extracts solar heat energy found abundant in the air and transfers it to water.

The mysterious Air-Sourced heat pump.
Our Cold Climate Air Sourced Hydronic Hydrocarbon Blend Heat Pump technology has a vast potential for harnessing renewable energy, reducing energy consumption and emissions. Our heat pumps extract heat from the air and concentrate it to provide hot water for heating homes and commercial buildings. The only energy required is that which is used to concentrate the thermal energy – so the system can provide a heat output up to four times higher than the energy input in winter conditions.
Running costs are similar to Natural GAS Boilers, however in non-GAS areas our sensational air sourced Heat Pumps can potentially reduce heating costs by more than 50% compared to other fuels like LPG & oil, and by up to 80% lower than using straight electricity in a conventional oil-filled column heater. (These figures will change in accordance with changing tarifs for the various fuels)
Because they don’t rely on direct sunlight radiation, our Heat Pumps can operate in all seasons of the year, under all conditions; shade, overcast, sun, rain, frost, even at night.
Long after a conventional solar collector array would have given up and reverted to its booster, our heat pump is still absorbing vast amounts of solar energy.
Unlike much of Europe where hydronic heating has been used for decades, in most area’s of Australia a Cold Climate Air Sourced heat pump, used in conjunction with Solar Electricity will outperform a ground sourced (Geothermal) heat pump, and at a much lower overall installation cost.

Geothermal systems might provide the most "efficient" heating, however - unlike much of Europe where hydronic heating has been used for decades, in most area’s of Australia an air-sourced heat pump will provide similar performance to a ground sourced (Geothermal) heat pump, but there is no need bury hundreds of metres of pipes in the paddock at great expense!

With zoning control and even remote activation by telephone if required, used in conjunction with good building practices such as good insulation, hydronic heating with our state of the art, correctly sized air-sourced heat pumps can be an economical and ecological solution to your home heating requirements

During the life of this product, electricity will continue to be generated more & more from renewable resources, making electricity the fuel of choice.

. . . “let us exceed your expectations”


More info

Hydrocarbon vs conventional refrigerant:
CO2 and Hydrocarbon heat-pumps are being heralded as "Heating reinvented" . . . Our considerable and comprehensive in-house research and development tests have shown that the performance difference offered by CO2 / Hydrocarbon over conventional refrigerants is minor, non-linear under variable conditions, but can be up to about 10%, but 10% IS 10% and therefore we offer these types of systems!

Geothermal Heat Pumps:
Because the ground temperature doesn't vary much, Geothermal heat pumps can provide a slightly higher efficiency than an air-sourced heat-pump, however the considerable extra installation costs are not warranted, as the running cost savings will never offset the extra installation cost.

Hydronic Heating Solutions