Versatile.

Water-to-air heat pumps act as the central ducted air handler and distribute hot air and cold air through ductwork. These can be zoned.

Water-to-water heat pumps create low-temperature hot water (95°F - 110°F) and chilled water (45°F - 50°F) that is distributed to ductless wall-mounted units provide heating and cooling.

Water-to-water heat pumps create low temperature hot water(95°F - 110°F) that is distributed to zones of under-floor radiant heating.

Baseboard emitters with 24V fans use low-temperature hot water (95°F - 110°F) and chilled water (45°F - 50°F) created by water-to-water heat pumps to provide heaing and cooling.

Wall-mounted radiators use low temperature hot water (95°F - 110°F) created by water-to-water heat pumps to provide heating. These can also be towel warmer radiators.

Water-to-water heat pumps create medium temperature hot water (~125°F) that is mixed with glycol to provide snowmelt.

Water-to-water heat pumps create low-temperature hot water (95°F - 110°F) and chilled water (45°F -55°F) that is distributed to indoor units that are typically concealed above ceilings and ducted for short distances to provide heating and cooling.

Water-to-water heat pumps create low-temperature hot water (95°F - 110°F) and chilled water (45°F - 55°F) that is distributed to in-floor trench convectors with to provide heating and cooling.

Wall-mounted convectors with 24V fans use low-temperature hot water (95°F - 110°F) and chilled water (45°F - 50°F) created by water-to-water heat pumps to provide heating and cooling. These can also be semi-, or fully-concealed in the wall.

Water-to-water heat pumps create low-temperature hot water (95°F - 110°F) that is used to heat pools and spas. In hot climates, they can also use chilled water (45°F - 55°F) to cool down a pool.