Electric water heater
Would it be more economical to run a electric water heater in addition to an installed heat pump, but changing that to solely run the heating circulation.❓
2 10kw Grant Aerona3
Heat loss calc 16.5 kw @ -2.8 degrees
4.32 PV
Hi, im not quite sure that I understand what you are asking, but an electric heater will have close to 100% efficiency whereas a heat pump will have several times that efficiency depending on the temperature to which the water is heated and the outside temperature. Hope that helps
House-2 bed partial stone bungalow, 5kW Samsung Gen 6 ASHP (Self install)
6.9 kWp of PV
5kWh DC coupled battery
Blog: https://thegreeningofrosecottage.weebly.com/
Heatpump Stats: http://heatpumpmonitor.org/system/view?id=60
Sorry I was probably being vague but I was thinking out loud along the lines of something like this. I guess it was knee jerk to thinking I could run two heating systems (think I'd had a beer at the time so wasn't thinking!) 1. Just for hot water and 2. For heating alone as the heat pump won't deliver heat whilst it's heating the water. I think I've answered the question myself by just getting a solar diverter.
I've put the articles on anyway just out of interest, although again it probably more orientated to Australia!
https://www.herschel-infrared.co.uk/hot-water-heating/
In relation to this article where they are saying electric water heaters may be better at storing energy versus a battery used to heat the water in a cylinder.
2 10kw Grant Aerona3
Heat loss calc 16.5 kw @ -2.8 degrees
4.32 PV
Your HP should be able to provide hot water in between heating the house, a HP heated house should have a back-up electric water heater anyway.
@bretix I think they are essentially saying that renewable energy can be stored as heat in a water tank! Stop the press 😀
House-2 bed partial stone bungalow, 5kW Samsung Gen 6 ASHP (Self install)
6.9 kWp of PV
5kWh DC coupled battery
Blog: https://thegreeningofrosecottage.weebly.com/
Heatpump Stats: http://heatpumpmonitor.org/system/view?id=60
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