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HDG Domestic Boilers
Switch is the exclusive supplier of HDG wood pellet boilers to New Zealand. HDG boilers are designed and manufactured in Germany and offer maximum quality and reliability.
HDG Compact
Fuel: Wood Pellets
Output: 25, 35, 50, 65, 80 kW
Innovative output and combustion control
The HDG Compact has innovative combustion and control technology – the Compatronic and Hydronic – which make heating not only convenient but also highly economical and low emissions. Direct fuel delivery on the grate and the high quality gearing make it particularly safe and also reduce electricity and pellet fuel consumption.
The delivery – safe and energy-saving
In conjunction with a water extinguisher unit, feeding via our patented rotary feeder with stoker worm guarantees you the utmost in operating safety. An automatic reversing mechanism ensures, as far as possible, continuous operation in the unlikely event of jamming. The combustion chamber is hermetically separated from the silo and transport unit by means of the rotary feeder (patented back-burning protection).
HDG Pelletmaster
Fuel: Wood Pellets
Output: 25kW
The advantages of the HDG Pelletmaster:
especially clean
The advanced combustion technology of the Pelletmaster is perfectly designed to burn wood pellets as a fuel, resulting in very low emission values. Extremely high efficiency levels are also achieved through the combustion of this environmentally friendly fuel.
especially economical
Optimised combustion technology results in low pellet consumption. An advanced thermostat controls the boiler temperature ensuring that only the required amount of heat is produced.
absolutely safe
The HDG Pelletmaster has been subjected to strict in-house and independent safety tests. The cellular wheel sluice reliably prevents back-burn and the escape of low temperature gas. This sluice wheel, combined with an integrated water extinguishing system, provides total safety.
especially convenient
Features such as automatic transport of the pellets to the combustion chamber, automatic ignition, self activated cleaning and large ash container combine to provide maximum convenience automatically controlled by the HDG Pelletronic boiler control.



