HVAC vs air source heat pump - 'these systems aren't direct equivalents,' say the experts
Briefly

HVAC refers to heating, ventilation, and air conditioning systems, typically centralized in North America, using ductwork for temperature control. In contrast, the UK predominantly employs wet central heating systems. Air source heat pumps differ significantly, as they heat and cool by transferring heat, making them more efficient than traditional HVAC systems reliant on direct heating methods. While HVAC in the UK generally includes cooling, heat pumps serve as a primary climate control solution, emphasizing efficient energy usage.
In North America, HVAC often refers to centralized systems using ductwork to deliver heating and cooling, usually powered by gas furnaces or electric resistance heating.
A heat pump can heat and cool your home by moving heat, rather than generating it, which makes it much more efficient than a traditional HVAC set-up designed around electric or gas heating.
Read at Homebuilding
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