How It Works

A heat source produces and circulates the heated water. System Link control distributes piped hot water to underfloor radiator, domestic hot water and pool heating. Hot water cylinder heated by central heating boiler, providing the home with hot tap water.Heat is distributed around the home via a pipe distribution network to: Underfloor heating pipes laid in concrete slab at construction Radiators, controlled individually with thermostatic valve Heated towel rail, connected to central heating system, for drying towels and heating bathroom.

Underfloor Heating

The floor is heated by pumping warm water through pipes embedded in the floor. Various heat sources can be used. These can be changed in the future.These systems are generally run continuously throughout the winter. The network reaches even your coldest rooms. As the radiant heat is more widely and evenly distributed about the floor, it is possible to have a lower room temperature than with other systems. As the heating is hidden away underfloor, you have more options for the placement of furniture. Different zones of the house can be heated individually by using room thermostats and slab temperature sensors.Piping is laid in loops and is secured to a reinforcing mesh in the floor during construction. Each loop is connected to a control manifold - allowing each zone to be controlled separately.

Wood Gasification Boilers

The wood placed in these burners is not burnt directly. The top combustion chamber has a limited air supply. The heat from this chamber drives off volatile gases and also produces partly combusted gases. These gases are drawn down through the grate into another, lower chamber, where they are fully combusted with a fresh air supply. The charcoal left above the grate eventually burns out to ash which then falls down through the grate. These systems operate more efficiently if they are connected to a boiler system. This allows the burner to run continuously at high output - to avoid load inefficiencies and to counter tar and condensation damage from running at low temperatures. These burners are clean burning. They have integral automatic overheating protection. Their large firebox means that you load it less frequently. The wood should be very dry - 20% or less moisture.

Solid Fuel Boilers

All solid fuel burners are designed to keep the boiler hot Accumulators (buffer tanks) hold large quantities of heated water and are used as heat stores. Having a heat store allows the burner to run at optimal efficiency - even if the load is small or varying. Tank size depends on the size of the house and how energy efficient it is. Buffer tanks can be supplied with integral heat exchange coil for a secondary heat source - e.g. solar. The tanks come with a 100mm insulation jacket.

Hot Water Cylinders

These are designed to be heated indirectly from a pumped boiler or wetback system such as gas, diesel, wood pellet or coal or log fired boiler. Air or ground source heat pumps can also heat the cylinders. The various heat sources heat the cylinders via the internal exchange coils. These allow rapid transfer of heat to the water. Effective insulation minimizes any heat loss. There is a unique 'coil in coil' high-efficiency heat exchanger to provide hot water quickly and efficiently. Optional electrical submersible elements can be fitted to raise output levels. There is a built-in boiler thermostat Solar - we have cylinders are are purpose designed to work with a wide range of solar heating systems available in NZ.

Diesel Boilers

These use diesel to heat up water that is then pumped through your building to run radiators, underfloor heating or your hot water system. They are efficient and silent. The boiler is controlled by a thermostat and electronic timers that are located inside the house. Manual override is always available. They can operate for months on end without supervision. They will exceed New Zealand's stringent emission standards. Biodiesel versions are available. They are available in a variety of sizes - mostly about the same size as a modern washing machine. Typically they are installed in garages, outhouses or even cupboards. Fuel tanks are installed on concrete pads. Fire safety mechanisms are installed on fuel lines.

Air to Water Heat Pump

These units extract the latent heat from outside your home and transfer it to your hot water supply. Certain models can be used for underfloor heating, radiators, swimming pool heating and domestic hot water heating. A very efficient and silent setup. The units will continue to run at very low temperatures (down to -15C.). The running costs are low. Essential components such as circulating pumps, pressure gauges. relief valves and expansion tanks are included. A range of specifications is available. The system is designed to customers needs. High temperature models can be used to heat radiators.