A control method that adjusts heating flow temperature based on the outside temperature.
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A heat pump that collects heat from a water source such as a lake, river, pond, well or open-loop system.
A roof construction where insulation is installed above the roof deck, helping keep the structure warm.
A vessel used in some heat pump systems to increase system water volume and help stable operation.
The amount of air supplied to or removed from a building over time.
Heat lost when warm indoor air is replaced by colder outside air.
A planned approach to providing enough fresh air before and after retrofit works.
The controlled supply and removal of air from a home. Ventilation helps manage moisture, odours, pollutants and indoor air quality.
A material used to control the movement of moisture vapour through walls, roofs or floors.
A layer designed to stop or reduce water vapour passing through a building element.