14kW Ecodan system installed in a 370sqm new build
Hi all thanks for the comments. Before everyone leaps to conclusions about the amazing performance I have to admit to a typing error at 7am this morning....its actually 270sqm rather than 370sqm! Which makes the stats less impressive!
Posted by: @hjdHi all thanks for the comments. Before everyone leaps to conclusions about the amazing performance I have to admit to a typing error at 7am this morning....its actually 270sqm rather than 370sqm! Which makes the stats less impressive!
Sorry Howard, you only get 5/10 for personal performance, 'must pay attention to detail'. 😉 But your systems performance is still very good, even with your smaller property.
You can obtained data for energy used and energy produced from your FTC controller, which will allow you to calculate your ASHP's Coefficient of Performance (COP), which is a measure of how efficient your system is operating. If you are not certain how to obtain this data, there are a number of videos on the internet, or you could ask one of the friendly forum members.
Posted by: @hjd@derek-m Indeed - definitely a D- for effort!
I calculated the COP on the Central Heating which is running at 3.7. The DHW is much worse - around 1.6
Hi Howard,
We will let you off this time, just don't do it again. 😎Â
A Cop of 3.7 seems quite good, though it may be possible to improve this. Producing DHW is always going to have a lower COP because of the higher water flow temperature required. What is the desired temperature setting for your DHW?
You may have read in one of my earlier posts today that I am developing a spreadsheet which models an Ecodan based system. Since you have the same model as Kev (who supplied the Ecodan data), you may also find it of use.
@derek-m I am fairly pleased with a CH COP of 3.7 under this new 'weather compensation' approach. I looked at last year's data, when the ASHP was relying on the zoned room thermostats only, and for 2020 I only achieved an equivalent COP of 2.7.
ON DHW - we have it set at 48deg which is a reasonable balance, for us, between hot water from the tap and energy efficiency. We tried both timed and immediate reheat approaches and found that immediate reheat was more energy efficient (just).
Definitely send me the spreadsheet when you have it. Thx
- 26 Forums
- 2,136 Topics
- 46.8 K Posts
- 24 Online
- 5,662 Members
Join Us!
Podcast Picks
Latest Posts
-
RE: Rodents! A word of warning for heat pump owners
@tim441 Or as they didn’t quite say in the space travel...
By Toodles , 3 hours ago
-
RE: Mitsu Wireless Controller and MelCloud
Update: I have found that the contractor had changed on...
By DavidAlgarve , 14 hours ago
-
RE: Air source heat pump roll call – what heat pump brand and model do you have?
@editor Hi Mars, We have just installed a Grant Aerona...
By GrahamF , 15 hours ago
-
RE: Sanity check please. Battery storage and inverter sizing.
There are MCS guidelines about how close to the edge/ri...
By Old_Scientist , 18 hours ago
-
RE: Balancing financial efficiency and comfort using the Octopus Cosy tariff
I estimated our usage on the following basis. The mos...
By Old_Scientist , 19 hours ago
-
RE: Why so many sigenergi installer recommendations?
It’s a really simple answer, GivEnergy. Installers ...
By SAEnergy , 23 hours ago
-
@editor Something changed in this last 12 months, they ...
By ASHP-BOBBA , 2 days ago
-
RE: Ecodan & MelCloud scheduling
I put the above question to Mitsu UK at the sme time as...
By DavidAlgarve , 2 days ago
-
Thanks for the heat geek info. I've fitted my own heat ...
By bontwoody , 3 days ago
-
RE: Does anyone have experience of a smart water meter?
Just to give a sense of scale, I've used the CCW water ...
By Majordennisbloodnok , 3 days ago
-
RE: Powerwall 3 or Myenergi or something else?
We have a Tesla Powerwall 3, recently installed, so I m...
By Old_Scientist , 4 days ago
-
RE: Mitsubishi PAR-WT60R-E Wireless Controller installation
@morgan They have been paired once but it was thought b...
By DavidAlgarve , 5 days ago
-
RE: Isolating the system for a planned power cut
A great many ground-mounted local substation transforme...
By Transparent , 5 days ago
-
RE: Heat Pump Servicing & Maintenance – Good Value or Rip-Off?
Having bit the bullet and paid £250 for a service, our ...
By Old_Scientist , 6 days ago
-
New heat pump heating system underperforming in Italy... Advice needed!
hi all, first post! I've just renovated a house in sout...
By robinlawrie , 6 days ago
-
RE: Anyone still weathering it out with Agile?
I went to Agile when I had solar installed July last ye...
By NJT , 7 days ago
-
RE: Say hello and introduce yourself
Whilst you're busy installing services (pipes and wires...
By Transparent , 1 week ago
-
RE: New Vaillant aroTherm Plus in black - When will it come to the UK?
@editor I know it was formally announced at Ish the oth...
By PatrickVito , 1 week ago
-
@moman0311 welcome to the forums. I've received your em...
By Mars , 1 week ago
-
RE: Thermostat for Ideal Logic Air with 3 zone support
No harm at all in plumbing it as 3 zones, I would have ...
By JamesPa , 1 week ago