Although the ASHP will be less efficient at night when it's colder, you'll be using most of your electricity on daytime rates simply because daytime rates apply 71% of the time (17/24). You'd have to check Eon's rates but it's unlikely E7 will be cheaper overall because the daytime rate is always more expensive. E7 is really for the likes of those with storage heaters, where 80% or so of the electricity is used at night.
As a rough estimate, based on the size of your property and the type of system that you have, you are probably using 2 to 3 times the amount of energy than you should be.
@kev-m Well, they kept transferring me from dept to dept and would not tell me the actual day time rate until I signed up for a dual meter, so I gave up on them and came to the same conclusion about economy 7. Thanks for confirming the detail though.
Posted by: @littlered@derek-m Pleased to say after some adjustments we were down to £3.60 today. Phew. Power cut and snow added to the surge in energy use it seems.
You will probably discover that the reduction in energy use is due to the fact that it is much warmer today.
Posted by: @littlered@derek-m Yep, weather dependent heating system, something you don't really fully understand or appreciate until you get a freezing cold day.
I think that you will find that all heating system are weather dependent, it is just that ASHP's are more weather dependent than the other types.
A neighbour on this new development we had just moved into has told us and other neighbours that he has discovered that our back up system is kicking in all the time which may be what is contributing to our high costs. We are taking this up with the developer. But in the meantime can anyone explain in idiots (me) terms what the back up system is for, how it should be set up and how and if it should be altered if it is coming on? Our neighbour says it is set up to come on at 0 and he thinks it should be at least -5-10?
Posted by: @littleredA neighbour on this new development we had just moved into has told us and other neighbours that he has discovered that our back up system is kicking in all the time which may be what is contributing to our high costs. We are taking this up with the developer. But in the meantime can anyone explain in idiots (me) terms what the back up system is for, how it should be set up and how and if it should be altered if it is coming on? Our neighbour says it is set up to come on at 0 and he thinks it should be at least -5-10?
Hi LittleRed,
Some, but not all systems, may have a backup heater installed. As the name suggests, it is to backup the ASHP, when the heat pump can no longer supply enough heat energy to meet the heat demand. If your ASHP is correctly sized and installed, it should be capable of meeting the heat demand down to ambient air temperatures of -5C or even lower, so in normal operation the backup heater should only be required 'once a blue moon'.
If the backup heater is operating frequently, then it would indicate that there are problems with your system that need to be investigated.
@derek-m Thanks to our neighbour who has been monitoring this for a few months, we think that is where the problem lies, as he said exactly what you said in this post. Trying to get the developer to come and change the settings is the issue and currently if we change them we jeopardise the warranty. Will keep you posted, but we are all hopeful that this is the cause of our excess costs.
- 26 Forums
- 2,208 Topics
- 48.7 K Posts
- 76 Online
- 5,868 Members
Join Us!
Podcast Picks
Latest Posts
-
RE: Testing new controls/monitoring for Midea Clone ASHP
I think you are onto something here. From the Engineeri...
By cathodeRay , 50 minutes ago
-
RE: The Hidden Secret to a Successful Heat Pump: Pipe Size Matters
@davidnolan22 So far as I can tell from the 'other p...
By JamesPa , 2 hours ago
-
RE: Renewables & Heat Pumps in the News
Apologies @judith I could've made my point clearer if I...
By Transparent , 3 hours ago
-
Daikin 9kW to 8kW Swap Offer from Octopus
I had a Daikin 9kW installed in June 2024. I have been...
By Matban , 4 hours ago
-
RE: Can you recommend a Mitsubishi service engineer in the Rochdale area?
I’ll reach out to my network today and see if there’s a...
By Mars , 4 hours ago
-
RE: 5 Star Service from Havenwise
I keep getting havenwise ads on my Facebook feed, so cl...
By benson , 5 hours ago
-
Automation options to maximuse efficiency & ToU tariffs
I started a conversation with ChatGPT. What automation...
By Tim441 , 9 hours ago
-
RE: 4 Year Ongoing Heat Pump Battle With Poor Heat Pump Installation
@jamespa Oh, I know some that are good and some not so....
By ASHP-BOBBA , 15 hours ago
-
RE: Samsung Heat pump with Yonos Pico circulating pump running all the time
I don't know how many pumps you have but I guess it's o...
By JamesPa , 15 hours ago
-
RE: Help me keep the faith with my air source heat pump installation
That's just human nature unfortunately, not special to ...
By JamesPa , 15 hours ago
-
RE: Octopus tariffs - a quick comparison
Absolutely. That’s one of the reasons I wouldn’t want t...
By Majordennisbloodnok , 16 hours ago
-
@editor The season to start inviting prospectives to ‘V...
By Toodles , 22 hours ago
-
@bontwoody how long has it been now since you started t...
By Mars , 22 hours ago
-
RE: Bosch CS5800i 5kW - Experience So Far
Yes, over the last few days I've been keeping a very cl...
By Steelbadger , 23 hours ago
-
Absolutely. I am one of those members and I most certai...
By Majordennisbloodnok , 24 hours ago
-
RE: Air source heat pump roll call – what heat pump brand and model do you have?
@darrell-p There's another new Forum Member, @wully who...
By Transparent , 24 hours ago
-
RE: Forum updates, announcements & issues
We've had a slight glitch with our security software fo...
By Mars , 1 day ago
-
RE: Samsung Heat Pump – Can't Activate TW2 Pipe Sensor (for Delta T Control)
If you do suggest you consider repurposing it as a 2 po...
By JamesPa , 2 days ago