Heat pumps are a really efficient renewable energy solution and can be used in both domestic and commercial environments.
There are two fundamental types of pump - Air Source and Ground Source. Both can be used alongside your existing heating system (i.e. boiler etc).
Both operate on the same principle of taking heat - either sourced from the ground or from the air - and transforming it to power your heating or hot water systems, rather than using a conventional boiler.
Heat pumps typically have a lifespan of over twenty years, the equivalent of two conventional boiler lifespans.