Last seen: Oct 1, 2025
@jamespa There are many hundreds of other variables in the vapour compression circuit, miss one and the calculations are irrelivant. Every time I thnk...
It is just thermodynamics, the higher you move the flow temperature the more it will cost to run, existing radiators may need a higher flow temperatur...
All heat pumps, using the same gas, will have a verry simmalr perfomance, you cammot beat the rules of thermodynamics, the biggest effect on heat pump...
Hi @dreg1 11, Kw or 10.6 is neither here nor there, it is considered to supply 100% of the load and will with ease, if your system is controlled prop...
@terry1812 Go to "My Dasboard" Top right and click on the messages icon, I have sent you one.
I can help, PM me
@terry1812 Sorry, I did not realise it was there, Admin chainged it a while ago, it has been corrected.
Firstly, lets look at the heat pump, this unit, accrding to the doccumentation Mr Google found fo me, it will supply 11 Kw down to -7, if your heat lo...
@adamk You defernatly do not need a buffer and possibly a volumisor depending on how many radiators you have open loop and the unit you choose. Yes, y...
@jamespa "Whether anyone would be prepared to pay the rates that they would demand is of course another matter!", they are not, we have sorted a lot o...
@jamespa (Im presumeing when you say pumps in parallel you also include in series - as here); you are correct and I have corrected my post. Mismatched...
@jamespa Pumps in series are not a problem, the flow rate on the pump is approximately the same and the head is about 70% more (not double). @alfapa...
- 26 Forums
- 2,323 Topics
- 52.1 K Posts
- 208 Online
- 5,979 Members
Join Us!
Podcast Picks
Latest Posts
-
RE: Our journey through Octopus tariffs 2020-2025
Now that would be a really interesting point to get cla...
By Majordennisbloodnok , 2 minutes ago
-
RE: Are Water Companies Delivering Bricks?!
That's an excellent name for an audible newspaper for t...
By Transparent , 3 minutes ago
-
RE: Jokes and fun posts about heat pumps and renewables
By Morgan , 27 minutes ago
-
RE: Replacing my 18 month old Hitachi Yutaki ASHP
@jamespa Looking at setting up the weather compensat...
By JamesPa , 46 minutes ago
-
RE: Testing new controls/monitoring for Midea Clone ASHP
@benson — thank you, that is useful information you hav...
By cathodeRay , 2 hours ago
-
RE: Grant Aerona circulation/system pump staying on
My parameters are: 42 00 = 0 (so the next three value...
By MikeFl , 3 hours ago
-
RE: Electricity price predictions
My apologies. I should've written "The number and dep...
By Transparent , 3 hours ago
-
RE: Solar panels on side of house to heat water
I wouldn’t try a direct linked system of DC at all sinc...
By Judith , 3 hours ago
-
RE: Flow rate discrepancy between ASHP and manifold
@ashrolls Air circulating in the system will confuse fl...
By bornagain , 4 hours ago
-
RE: Help…my NIBE heat pump has faulted again!
If it happens only when it gets cold then it maybe that...
By JamesPa , 4 hours ago
-
RE: Grant Aerona3 - Home Assistant control via Modbus
Has anyone got past this screen to set up the integrati...
By AlanW1212 , 4 hours ago
-
RE: Heat Pump Training vs. Real-World Installation
@lucia have you discoveredfor how green each of our ene...
By Judith , 5 hours ago
-
RE: Diagnostic Data Needed for Repeatedly Failing Tesla Powerwall 3 System
You seem to be on the right track... Installers are rec...
By Batpred , 13 hours ago
-
RE: Should Our Water Circulation Pump Be Configured to Run All The Time?
there's a detect cycle setting (4200) on the old grant ...
By damonc , 15 hours ago
-
RE: Commencing on an ASHP Installation Process
@sheriff-fatman It's also worth highlighting that th...
By Lucia , 16 hours ago
-
RE: Hitachi Yutaki SCombi Heat Pump - Owners
. It does but, unless there has been a firmware updat...
By JamesPa , 18 hours ago
-
RE: Help me keep the faith with my air source heat pump installation
Yesterday it was chilly and the cosy6 had a Cop of 4.3 ...
By AgentGeorge , 20 hours ago
-
RE: Solar Power Output – Let’s Compare Generation Figures
@toodles Same here! This month 187kw.
By Andris , 21 hours ago
-
@jamespa Ah, they do indeed do firmware updates very oc...
By Toodles , 1 day ago


