Oil-fired condensing boiler

(+) Simple replacement for an existing oil-fired system

(-) Needs space for a tank / refurbishment of an existing tan

New installation

New installation

Environment

Environment

Renovation

Renovation

Economical to use

Economical to use

Investment

Investment


Modulating gas condensing boiler

(+) Clean burning / compact wall-mounted solution

(-) Cost of connection to gas supply

New installation

New installation

Environment

Environment

Renovation

Renovation

Economical to use

Economical to use

Investment

Investment


Thermal solar

(+) Clean, renewable energy

(-) Needs to be combined with another system

New installation

New installation

Environment

Environment

Renovation

Renovation

Economical to use

Economical to use

Investment

Investment


Ground-to-water – Geothermal heat pump

(+) No atmospheric emissions 

(-) Less suitable for renovations

New installation

New installation

Environment

Environment

Renovation

Renovation

Economical to use

Economical to use

Investment

Investment


Air-to-water heat pump

(+) No atmospheric emissions 

(-) Installed in external unit / noise level

New installation

New installation

Environment

Environment

Renovation

Renovation

Economical to use

Economical to use

Investment

Investment


Wood – Pellets

(+) Renewable energy

(-) Needs storage space

New installation

New installation

Environment

Environment

Renovation

Renovation

Economical to use

Economical to use

Investment

Investment