news

"NEW DISPLAY AND TRAINING VEHICLE"

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"HUNT HEATINGS NEW DESIGNER RADIATOR RANGE"

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"AN-TRAX IT"

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"Hunt Heating expands intelligent boiler range"

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"DE LONGHI STEEL PANEL RADIATORS COME WITH 25 YEAR MANUFACTURER’S WARRANTY"

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"PAUL LINLEY APPOINTED AS HUNT HEATING'S NEW GENERAL MANAGER"

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"NEW MODEL FORMAT DGT 30E & 30I BOILERS"

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"DE LONGHI HAS ARRIVED AT HUNT HEATING"

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"SIME CONDENSING BOILERS"

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"PEX UNDERFLOOR HEATING & COOLING"

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FAQ

Q

What is the EN442 standard? Why is it so important?

A

  

WHY THE REFERENCE STANDARD EN442? This measuring standard puts an end to the large number of different values that have previously been used, and provides an accurate reference for comparing different appliances. The 75/65/20 system has been chosen for this reference value. This is a realistic starting point for choosing an appliance that provides sufficient heat with a low water temperature. On exceptionally cold days the water temperature may increase slightly, but for most of the heating season it will be much lower. Obviously this fixed reference level is not always used in practice. Therefore, we are also continuing to give the values for the traditional 90/70/20 system, obviously calculated according to the guidelines of the new EN442 standard. (reproduced courtesy of Jaga Belgium)

(We should also point out that while the EN442 standard is the benchmark to which radiators should be manufactured - it is only one indicator of the quality of the end product.       Insist on a radiator where you can be guaranteed that the country of origin is renowned for design, manufacturing quality and minimising waste and harm to the environment, such as our Italian De Longhi range of radiators and towel rails with their 25 year manufacturers warranty. Make sure you are comparing "apples with apples").

MOST IMPORTANTLY: This highlights the inconsistancies between different manufacturer's radiator outputs (based on DELTA T 60°C) not being the same, or even close to the same.  IE: (radiators not manufactured and measured to EN442 standard but manufactured and measured under the old out-dated DIN standard, will show inflated outputs by comparison). Once again "compare apples with apples".

REST ASSURED: All radiators brought into Australia and sold by Hunt Heating are manufactured to the new EN442 standard in keeping with our commitment to supply only the best quality designed and manufactured products.

 

Q

How does hydronic heating work?

A

 

A Hydronic heating system consists of five components:

  1. The boiler heats water to a thermostatically controlled temperature. Boilers can use natural gas, LPG, off peak electricity or can be wood fired.
  2. The piping, usually made of copper/plastic or multilayer and carries the heated water from the boiler to radiators/convectors, and back again for reheating.
  3. A pump circulates the water through the piping.
  4. Radiators or convectors transfer the heat into the room. (Several types are available).
  5. A programmable wall thermostats ideally controls the heat levels (or room temperature) to optimise comfort throughout the house.

 

Q

What do I do if my heating doesn't work?

Q

How do I bleed my radiators?

Q

Is hydronic heating safe?

A

 

Hydronic Heating is safe for elderly people (as it's radiant heat, it heats people and objects and is perfect  heating for those who are not particulary mobile), children and pets (no circulation of dust and allergens). There is no danger of burns or scalding as the system is fully enclosed with radiator temperatures well below boiling point. The surface temperature of a radiator can be quite hot to touch however, so care should be taken with any individual who may not be able to adequately feel surface temperature and react when coming into contact with the radiator.   The surface temperature of natural convectors is pleasantly warm to touch not ever achieving the much higher surface temperature of a radiator and is, therefore, a safe alternative if required.

 

Q

I have an existing house, is it possible to add hydronic heating?

A

 

Yes, most houses can have hydronic heating at any time, however, houses on a concrete slab are more difficult due to lack of access for pipe work.

 

Q

How much does it cost to install hydronic heating?

A

 

To install hydronic heating with radiators the approximate cost is currently around @1,300.00 - $1,600.00  per radiator fully installed including the cost of a boiler in an average size home (variance depends on the difficulty of installation, individual specifications and size of each home).

To install hydronic slab heating the approximate cost is currently around $66.00 per square metre single pour not including the cost of the boiler.  $103.00 per square metre for a double pour (structural pour then screed poured)  not including the cost of the boiler.

 

Q

Is there any benefit to insulation?

A

 

As with all heating, insulation improves the effectiveness by reducing heat loss through walls and ceilings. The boiler is not running as often for a given output, thus saving fuel bills.

 

Q

What is radiant heat?

A

 

Radiant heating systems heat people and objects throughout the room, so you can feel the difference. It simply eliminates cold draughts and keeps the heat warming you and objects around you, not the air.

 

Q

What makes hydronic heating so economical to operate?

A

 

A high efficiency boiler is used to heat water which is then circulated throughout the system by a small pump. Each area can be individually controlled so only the amount of heat needed is used.  Also radiators are rated to industry standard according to the areas they are placed in: bedrooms 18 degrees celcius, hallways 20, bathrooms 23 and living areas 21.  This then ensures a much more comfortable and even spread of temperature over the house and saves energy by not heating up the whole house unnecessarily to one temperature.

 

Q

What fuel should I use?

A

 

If you live in an urban area, the cheapest fuel will be natural gas. If natural gas is not available, LPG, Electric or solid fuel boilers can be used, along with solar input.

 

Q

Where should a wall thermostat be installed?

A

 

A thermostat should be installed in a main living area (usually the family room). This should be located on an internal wall if possible in an area free of draughts, and away from sources of direct heat, such as radiators or direct sunlight.

 

Q

Healthy hydronic heating vs. ducted heating – no contest!

A

 

Panel radiators are draught free, clean and silent. They do not rely on noisy fans cycling on and off to provide you with the ultimate in home heating. Radiation and natural convection combine to produce a heating system that will astound you, both in the quality of heat and its ability to provide uniform temperatures at the lowest possible relative humidity.  The electrical componentry in a hydronic system is minimal with wall hung boilers having electronic ignition on start-up and small economical pumps using very low amounts of electricity to operate.

There are major differences that you should be aware of between ducted and hydronic heating systems. Ducted heating circulates and re-circulates warm air using large electric fans.   The air is scorched over burners then blown via ducts around your home bringing with it airborne particles, dust and other undesirable pollutants, all of which can be trigger factors for asthma and other breathing allergies. 

 

Q

What size boiler should I have? What happens if the boiler power exceeds system needs?

A

 

Ideally the power (or kW's) should be slightly over the maximum required kW's calculated for the system.

If the boiler is oversized, there is an excess consumption of fuel and the boiler will tend to frequently turn on and off with consequent increase in wear on the boiler as well as heat loss.

 

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