Last seen: Apr 23, 2025
@ashp-bobba and @jamespa - thank you both for all your help with this, it's much appreciated. I fully understand it's not easy to see what's going on ...
@ashp-bobba - yes that all looks correct. Pump 1 is on the flow and Pump 2 is on the return.
@ashp-bobba Thanks. I've checked the arrows and confirm both point in the correct direction. I note your concern over whether both are needed. Assum...
@davidnolan22 - Screenshot of energy input/output attached. System was commissioned on 8th April. Note: value for 16th is significantly higher sin...
@ashp-bobba - your arrows on the picture are correct. I've followed the pipes just now and confirmed this. How could I check the pumps are insta...
@jamespa - Yes, 0.5bar is the max on that bypass valve. Range = 0.1 - 0.5 bar. How would I validate that the pumps aren't fighting each other? T...
@ashp-bobba - thanks for the detailed thoughts. I'm aware that my rads upstairs seem to be working well and I have a reasonable density of rads in n...
Yes - the return pipe is the one with the filter and is showing in the picture.
Additional photos of the system here - you can see how hard it is to follow the pipes (but at least it's a nice compact install like I asked for!)
Heat Loss Calcs and a pic of the system included here:
@jamespa - yes, looks like I made a mistake on the diagram. I asked for the install to be quite compact in a corner of the garage so it's a little tri...
@jamespa - Property is a 1990ish 3 bed 2 story semi-detached house. Fully double glazed. Only about 100mm of loft insulation which I already plan to d...
- 26 Forums
- 2,323 Topics
- 52.1 K Posts
- 282 Online
- 5,979 Members
Join Us!
Podcast Picks
Latest Posts
-
Had another try with the "customer support" of my ev ch...
By Batpred , 6 hours ago
-
RE: Solis S6-EH1P8K-L-PLUS – Why I Chose It and What I’ve Learned So Far
@batpred Thanks. Well I didn't know the Solis dongle...
By Bash , 6 hours ago
-
RE: Octopus Cosy Heat Pump Owners & Discussion Thread
They certainly commission their Cosys to work like that...
By AndrewJ , 7 hours ago
-
RE: A2A vs A2W: Which Heat Pump Would You Pick?
@editor Yes BUT that was 3 years ago installed in Janua...
By rob heatpump bob , 8 hours ago
-
Thanks for your response. I have UFH downstairs and ...
By GeorgeA , 9 hours ago
-
RE: Electricity price predictions
I do like the Nesta articles generally, including the p...
By Jeff , 10 hours ago
-
RE: Grant Aerona Short Cycling
Hi, I have a Grant 10kW (nominal 9kW for the UK), whi...
By MikeFl , 11 hours ago
-
-
RE: Home energy storage & battery register
2 days uninterruptible power supply (at the moment) wit...
By Batpred , 11 hours ago
-
RE: Replacing my 18 month old Hitachi Yutaki ASHP
JamesPa I plan to send you a chart tomorrow of todays (...
By trebor12345 , 12 hours ago
-
@trebor12345 Yes, expect defrost cycles to initiate at ...
By IaAck , 13 hours ago
-
I would probably have them in white as that would match...
By Grantmethestrength , 13 hours ago
-
RE: Hitachi Yutaki SCombi Heat Pump - Owners
@sim0n0 Sorry to hear that. Putting the past aside w...
By JamesPa , 14 hours ago
-
RE: MelCloud "Mixing tank temperature"
This post, on my 'diary' thread, might be of interest i...
By Sheriff Fatman , 14 hours ago
-
RE: 10kw heat pump run in 24*7 data?
UPDATE: Very happy wife, since 24*7 I've actually had t...
By jeegnesh , 14 hours ago
-
RE: Heat Pump Training vs. Real-World Installation
Thank you for doing that, @editor, and for writing this...
By Majordennisbloodnok , 16 hours ago
-
RE: Which 6kw to 8kw ASHP can modulate down the lowest ?
@editor the easiest way to find out is to look at the d...
By Damon Blakemore , 1 day ago
-
RE: Battery with existing PV - regulations
I am curious... which inverter would you go with for so...
By Batpred , 1 day ago


