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What's your current daily damage?

 
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Air Source Heat Pumps (ASHPs)
Last Post by scrchngwsl 4 years ago
32 Posts
18 Users
2 Reactions
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 batalto
(@batalto)
Noble Member Member
Joined: 5 years ago
Posts: 1092
Topic starter 04/12/2022 9:46 pm   [#640]

Currently used (bought) about 50kw today and it's fairly chilly. How's everyone else doing? 


12kW Midea ASHP - 8.4kw solar - 29kWh batteries
262m2 house in Hampshire
Current weather compensation: 47@-2 and 31@17
My current performance can be found - HERE
Heat pump calculator spreadsheet - HERE


   
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 Benseb
(@benseb)
Estimable Member Member
Joined: 4 years ago
Posts: 109
04/12/2022 10:09 pm  

Annoyingly I can’t view current day usage. But previous days have been 40-50kWh when it’s about 5c outside in the day. 

forcast -4c later this week for 2 days which is below design temp so will be whacking the 7kw log burner on!


250sqm house. 30kWh Sunsynk/Pylontech battery system. 14kWp solar. Ecodan 14kW. BMW iX.


   
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 prjohn
(@prjohn)
Estimable Member Member
Joined: 5 years ago
Posts: 125
04/12/2022 10:31 pm  

Last 24 hr I used 26kwh. That's with temps 3c to 5c.

 



   
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 Kev M
(@kev-m)
Noble Member Member
Joined: 5 years ago
Posts: 1276
04/12/2022 11:42 pm  

25 here.  Expecting more over the next few days. 



   
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 Drew Pa
(@drew-pa)
Estimable Member Member
Joined: 4 years ago
Posts: 73
05/12/2022 9:18 am  

25kwh of leccy used here for heating. 30 including hot water.  Temp of -2 recorded during the night of the 4th. 



   
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 Benseb
(@benseb)
Estimable Member Member
Joined: 4 years ago
Posts: 109
05/12/2022 9:34 am  

Yesterdays figures in now

 

44.5kW used

150kW delivered

COP 3.4


250sqm house. 30kWh Sunsynk/Pylontech battery system. 14kWp solar. Ecodan 14kW. BMW iX.


   
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Mars
 Mars
(@editor)
Illustrious Member Admin
Joined: 5 years ago
Posts: 4762
05/12/2022 10:44 am  

At 5-10C outside, we easily push 55-60kWh per day. When temperatures tumble to zero and below, we had days in Feb two winters ago where we did over 100kWh. On today's tariffs that's a killer.


New to heat pumps? Take the Heat Pump Fundamentals course and use INTRO50 at checkout for 50% off.
Rewritten and updated for 2027
📘 From Zero to Heat Pump Hero
🛠️ Bodge Buster
🎧 Prefer to listen? Heat Pumps Explained


   
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 Drew Pa
(@drew-pa)
Estimable Member Member
Joined: 4 years ago
Posts: 73
05/12/2022 10:51 am  

Hi @editor

 

is that electrical consumption, or heat output? 



   
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Mars
 Mars
(@editor)
Illustrious Member Admin
Joined: 5 years ago
Posts: 4762
05/12/2022 10:59 am  

@drew-pa, electricity consumption. In January 2021, which was one of our coldest winters, we consumed 2,231 kWh of electricity. More detailed info here:  https://myhomefarm.co.uk/potential-air-source-heat-pump-running-cost-issue


New to heat pumps? Take the Heat Pump Fundamentals course and use INTRO50 at checkout for 50% off.
Rewritten and updated for 2027
📘 From Zero to Heat Pump Hero
🛠️ Bodge Buster
🎧 Prefer to listen? Heat Pumps Explained


   
ReplyQuote
 Benseb
(@benseb)
Estimable Member Member
Joined: 4 years ago
Posts: 109
05/12/2022 10:59 am  

Posted by: @editor
↑

At 5-10C outside, we easily push 55-60kWh per day. When temperatures tumble to zero and below, we had days in Feb two winters ago where we did over 100kWh. On today's tariffs that's a killer.

 

Ours used to be like that until we de-zoned everything. Much better now 

 


250sqm house. 30kWh Sunsynk/Pylontech battery system. 14kWp solar. Ecodan 14kW. BMW iX.


   
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1
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 Marvinator80
(@marvinator80)
Reputable Member Member
Joined: 4 years ago
Posts: 201
05/12/2022 11:11 am  

These are quite scary amounts of electricity consumption. Is this normal?



   
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 Derek M
(@derek-m)
Illustrious Member Member
Joined: 5 years ago
Posts: 4425
05/12/2022 11:18 am  

Posted by: @marvinator80
↑

These are quite scary amounts of electricity consumption. Is this normal?

The amount of electrical energy used is dependent upon the overall heat loss and how efficient your system is operating, plus of course the none heat pump electrical energy used.

 



   
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