Simple replacement of an old heating system
Single-family house modernisation
The couple would like to bequeath their house to their children at some point in the future. At the latest when the house is inherited, the old heating system would have to be removed due to the obligation to replace it. However, the old unit is increasingly causing problems and no longer runs efficiently. Replacing the heating system should not be too complicated and costly, which is why they want to stay with the same energy source. A hybrid system would also be an option if the cost is low.
Their oil tank is still quite full. In general, Matteo and Aurelia want to continue using most of the components of their current heating system to save the expense of conversion. Consequently, it is important to them that the only change will be switching to a modern appliance and everything else will remain as unchanged as possible.
Reasons for choosing the new heating system
The heating contractor of their choice sees no problem in replacing the old boiler with a contemporary condensing appliance. He also demonstrates how much Matteo and Aurelia will be saving on heating bills if they also use free environmental heat (from the air or from solar energy) to backup their central heating system.
Solar heating is the perfect choice for supporting the new heating system, particularly when it comes to DHW heating. The condensing boiler can be switched off entirely during the summer as that is when the sun obviously shines the most. This saves a great deal of fuel. The same can be said of integrating a heat pump heating system. So the investment would definitely be worthwhile for the couple in the long run.
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New heating system with future potential
In the end, Matteo and Aurelia choose to combine their new boiler with a solar thermal system as this means they do not have to convert their heat distribution system. Their heating system now works much more efficiently and economically. And the support provided by the hybrid system for DHW heating will justify the additional cost within only a few years.