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Glyn Hudson Profile picture
Glyn Hudson
@glynhudson
Co-founder of @openenergymon, passionate about energy transition and low carbon travel. Love rock climbing, cycling & outdoor adventures, 8yrs #FlightFree
Dec 10, 2022 • 4 tweets • 3 min read
Coldest day of the year today, -2.2C overnight and freezing most of the day, heat pump kept our house cosy 19C-21C during the day, 17C overnight, including hot water for 1x bath and 2x showers it used 17.6kW electricity which resulted in 60kWh of heat, COP=3.4 🧵 Even in sub-zero temperatures a flowT of 35C with just radiators was sufficient to maintain 20C-21C indoorT, radiators are large but not ridiculously so, here's a video of the design and install process
Aug 18, 2022 • 17 tweets • 7 min read
Following on from my air source heat pump installation thread, this thread will document the performance of the system #ASHP🧵🤓 Image HP is a 5kW Samsung Gen 6 with 150L DHW tank and 7x upgraded radiators in a 200yr old 2 bed end-terrace house with sold stone construction, max heat loss at -3 degC ambient is estimated to be between 3.3kW-4.2kW, 28mm pipework to 3-port, mostly 22mm primary with 15mm drop to rads ImageImage