I’m spending a fortune running a heat pump in my build! Please HELP 😫

[damspt]

Model: Panasonic WH-MDC05J3E5  

Octopus Agile Tariff

 

Hi everyone, urgently need help as I can’t keep up with the costs at the moment🤦🏻‍♂️

I have attached some screenshots and pictures what might be important to know

My heat pump is in the back garden which is an open field after my fences

[damspt]

I’ve attached weather compensation curve and weekly timer!

[JohnMo]

Are you on the correct tariff would be my first question. If you have a battery maybe, without suspect not.

 

Do you have a timer for DHW or is that for CH as well?

[Bonner]

All depends on your insulation and air tightnesses levels but £6/day during this cold snap does not seem unreasonable, especially with 22/24 degree set points. My set points are 18/20 degrees but I do have a wood burner for the evenings. Do you have UFH, charging it when rates are low (overnight)?

[MikeGrahamT21]

What size, type is your property and how well insulated is it?

[JamesPa]

Its very cold at present, this is the time it will be at its most expensive (roughly double what you might normally see most of the season), Dont forget to factor that in!  With a cost of £6 presumably about 24kWh? - difficult to tell as you are apparently on agile (do you have a battery?  If not agile might not be the best tarrif)

 

For comparison Im currently consuming about 28kWh/day in a house with a loss of 7kW @ -2 and on the few days when its consistently sub zero I can consume as much as 50kW.  The heating is still cheaper and more comfortable than the gas boiler it replaced was, so Im not complaining!

 

You seem to have your WC set to 49@-2 and 39@20.  Does it need to be that high (answer no, certainly at the high OAT end)?  Are you operating 24x7 with WC adjusted and zones balanced, thermostats/trvs set to max so they have no effect or alternatively 2C above desired so they act as limiters?

 

Tell us a bit more and someone may be able to give some specific suggestions.

Edited 1 hour ago by JamesPa

[ProDave]

As above questions a LOT more information needed.

 

How old is the property? How big etc.  And your approximate location,

Is the Heat pump new?  Does it replace a previous heat source, e.g. a boiler, if so how much did that cost?

 

It is not easy to apportion heat pump consumption from a total electricity bill, I know exactly how much mine uses only because I chose to fit my own electricity meter to record just what the heat pump uses.  The best you can do is compare the daily usage now, with daily usage in the summer, if you do that you get an idea how much additional electricity is being used by the heat pump.

 

[Kelvin]

Cold here yesterday (below freezing all day) Heat pump consumed 11kWh of electricity but we have the temps set at 19.5°C. Very bright though so a bit of solar gain. 

[marshian]

27 minutes ago, JamesPa said:

Its very cold at present, this is the time it will be at its most expensive (roughly double what you might normally see most of the season), Dont forget to factor that in!  With a cost of £6 presumably about 24kWh?

 

For comparison Im currently consuming about 28kWh/day in a house with a loss of 7kW @ -2 and on the few days when its consistently sub zero I can consume as much as 50kW.  The heating is still cheaper and more comfortable than the gas boiler it replaced was, so Im not complaining!

 

Exactly this ^

 

Doesn't mater what heat source you are using the colder it is the more energy you will use to keep the house at a constant temp

 

Just over a week ago I was using 15kWh a day on "Space Heating" (OAT was Min 11.3 and Max 15.8)

 

Yesterday I used 70 kWh on "Space Heating" (OAT was Min -2.1 and Max 3.2)

 

Average for November will end up at ~30 kWh I see no point panicking about costs during a cold snap it's just part of the UK weather patterns