Hydronic heating with panel radiators
Heating your home with panel radiators
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.
- 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?
Skyline Energy generally supply hydronics components such as Hydrocarbon Air Sourced Heat Pumps to builders and trade contractors, however we can provide a full design and installation service. (depending on actual location)
Generally, the larger the project the lower the overall cost per square meter.
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 hydronic 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
Hydrocarbon Air Sourced Heat-pumps:
*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:
V-Models are recommended for higher loads in frost-prone areas:
- An SX-06 240v, 100Lt buffertank, system
for up to 50sqm floor space is about $6,000
- An SX-08 240v, 100Lt buffertank, system
for up to 65sqm floor space is about $6,350
- An SX-11CCZA 240v, 100Lt buffertank, system
for up to 90sqm floor space is about $9,300
- An SX-13CCZA 240v, 100Lt buffertank, system
for up to 100sqm floor space is about $9,700
- An SX-15CCZA 240v, 200Lt buffertank, system for up to 120sqm floor space is about $11,000
- An SX-17CCZA 240v, 200Lt buffertank, system for up to 130sqm floorspace is about $11,400
- An SX-20ZA 1ph/2ph (240v) system
for about 160sqm floorspace is about $13,200
- An SX-24ZA (1ph/2ph (240v) system
for about 200sqm floorspace is about $13,700
- A V20ZA 1ph/2ph (240v) system
for about 160sqm floorspace is about $15,000
- A V25ZA 1ph/2ph (240v) system
for about 210sqm floorspace is about $15,500
- A V30ZA1ph/2ph (240v) system
for about 260sqm floorspace is about $16,200
- A V35ZA1ph/2ph (240v) system
for about 300sqm floorspace is about $16,700
- 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 200kw
- 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.
email your house plan here
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
Home heating with water filled radiators
THEY DON'T WORK 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 25% 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)
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 normal winter conditions, a Cold Climate Hydronics heat-pump will use less energy than the booster required in a solar-boosted GAS/LPG/Electric 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 Geothermal heaters, WHY?
click here for a more detailed explanation.
If you don't have natural gas or adequate electricity power supply for the required heat-pump, only then would you choose an LPG boiler.
- In summer, solar systems can provide 100% of the energy required for domestic potable hot water
- In winter and in the colder climates solar systems 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, Solar systems (incl 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.
- Even if you are in a natural gas area, check local GAS charges, service costs etc. before you choose a gas boiler, GAS charges are increasing sharply!
(even condensing GAS boiler running costs are rising - long term a heat-pump and solar electricity are your best investments)
- if no gas use a heat-pump.
- In normal winter conditions, a heat-pump will use less power than the booster required in a solar or 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
Nothing to get excited about here, its just a GAS boiler!
- Cheap to buy but running costs rising etc. etc.
- Combo models available for domestic hot water AND hydronics in single unit, but heat pump hot water is a better option
- 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
Natural GAS is NOT a renewable resource and although Australia has enjoyed artifically low gas tarifs, thats all changing! Electricity is now the fuel of choice and the most efficient use of the electricity is a heat-pump. Solar electricity and air-sourced heat-pump technology are the now obvious choices for water heating . . . .
Heat-Pump Water Heaters:
You may hear a lot of good things about Geothermal Energy - don't confuse this with domestic geothermal hydronic heating systems - they are usually talking about specific commercial-scale projects accessing underground special hotspots, not your backyard!.
Generally, 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 significant cost of burying or drilling 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)
If you spent some of the Geothermal Groundworks dollars on Solar Electricity, you could have an air-sourced hydronic heating system 100% offset with solar electricity - with spare solar electricity to run your aircon/cooling system for free too!
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
Our range of sensational air-souced heat-pumps are rated from 10kw to 200kw
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 10kw to 200kw output
- We do NOT recommend using under- capacity heat-pumps boosted by LPG/GAS/electric elements - (lowers overall efficiency)
- 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
- A geothermal heat-pump costs about the same as an air sourced heat-pump, but you have to add the substantial cost of groundworks. (Put the extra towards Solar Electricity instead!)
- Although an LPG boiler is about the same cost of a natgas boiler - forget it! the running cost is too high - use Heat-Pump (only use LPG if mains power is not available)
How does it work?
Our air-sourced hydronic heat-pump slab 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 heat pump.
At first, our claims about this being a high efficiency solar system may seem outrageous, but really its quite simple - there is no magic, just science. Pushing hydrocarbon gas through a massive heat-exchanger at about -30oC, it readily absorbs solar energy in the form of heat out the air. Because they don’t rely on direct sunlight radiation, they 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 or evacuated tube system has given up and reverted to its booster, our air-sourced heat pump is still absorbing vast amounts of solar energy.
Geothermal systems provide the most efficient heating, however - unlike much of Europe where hydronic heating has been used for decades, in most area’s of Australia a Hydrocarbon 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.
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 hydrocarbon air-sourced heat pumps can be an economical and ecological solution to your home heating requirements
During the life of this product, electricity will be generated
more & more from renewable resources, making it the energy
. . . .
“let us exceed your expectations”