Including the closely related terms heat pump, and pumps.
… in their recent response to the Future Homes Consultation. Changes include modest improvements to insulation, shower drain wastewater heat recovery and roof mounted solar PV. While heating is still based on a gas boiler, it is possible that developers could use heat pumps instead of wastewater heat recovery and solar PV to achieve the required performance. Airtightness is relatively poor at 5m3/m2hr…
… ventilation is required. Shower drain wastewater heat recovery and solar PV are dropped from the notional building, but a heat pump is added. Part L 2025 + PV This is identical to the previous scenario, with the addition of the maximum capacity of solar PVs (both on roof and façade) to examine the maximum coverage of energy consumption that can be achieved on site. UKGBC 2025 Stretch…
…. This is sufficient to achieve a space heat demand of <30kWh/m2/yr, in line with the draft Cornwall DPD requirement, representing a reduction in space heat demand of around 50% relative to Part L 2013 & 2021. Space and water heating is provided by a heat pump, which is required to achieve the EUI target of <40kWh/m2/yr. The solar PV installation has been maximized, to achieve net-zero balance on site…
… is very low, as expected for a large block of flats with a straightforward design. Low carbon heating The most suitable low carbon heating system is likely to be an air or ground source heat pump. To minimize distribution losses and overheating risk, the system would likely be based around a small individual heat pump in each flat, which would be supplied with water at ambient temperatures via…
… a communal loop. Heat would be fed into the communal loop from a rooftop air source heat pump or ground borehole array. Suitable heat emitters include radiators, or underfloor heating for scenarios with poorer fabric efficiency. Direct electric heating would not typically achieve the EUI requirement without cost-prohibitive levels of fabric efficiency. Solar PV The property has sufficient space…