Samsung ASHP owners what have you set your weather compensation to?
Interested to see what others are using (while realising its completely dependent on your house, the size of the unit etc)
Mine currently is low temp - 2 (2011) Max temp 15 (2012)
UFH highest flow temp 40 (2021), lowest 28 (2022)
Rads highest flow temp 40 (2031, lowest 28 (2032)
Currently resetting Flow temps as per my thread adjusting lockshield valves.Posted by: @cyrusirInterested to see what others are using (while realising its completely dependent on your house, the size of the unit etc)
Mine currently is low temp - 2 (2011) Max temp 15 (2012)
UFH highest flow temp 40 (2021), lowest 28 (2022)
Rads highest flow temp 40 (2031, lowest 28 (2032)
Low temps -5c for Scotland
Max temps 15c
It has been 50c for years but experimenting after Lockshield settings with firstly 46c Now at 44c
Over the last 3 days of consistant outside temps and adjustment to make three rooms 2 degrees below Thermostat setting of 22c average the cost hast gone up from £10-£12 . Ill be giving it another day but its not working so far.
@cyrusir I have had a Samsung HP since 2023 but January 2025 is the first month we have had -2C and lower temperatures to enable me to finally trim my weather curve (water law in Samsung speak).
Mine is currently:
OAT 15C - Flow temp 37C
OAT -2C - Flow temp 52C
My 12 Kw unit becomes a little unstable with flow temperatures lower than 37C plus the compressor cycles more. As Mr Hendra once said it can only modulate down to 40% its max capacity before the compressor starts cycling
Regards
5 Bedroom House in Cambridgeshire, double glazing, 300mm loft insulation and cavity wall insulation
Design temperature 21C @ OAT -2C = 10.2Kw heat loss
Bivalent system containing:
12Kw Samsung High Temperature Quiet (Gen 6) heat pump
26Kw Grant Blue Flame Oil Boiler
All controlled with Honeywell Home smart thermostat
Not sure if this is working , smaller rooms a bit colder and larger a degree off the 22c .
Having said that I observe that pump is on but only showing 1.5kw consumption on smart meter, now 2kw but only shows it’s cutting consumption but achieving target, which has been on since 3.30pm .
I'm running a 'flat' WL curve of 32C (32C @ 15C OAT; 32C @ -2C OAT), and I then manually adjust LWT up and down on the controller heating screen. At the moment I'm run 32C during the day, set back to 30C overnight and boost to 35C during the cheap price Octopus Cosy slots, but I can tweak this depending how hot/cold the house feels.
Samsung 12kW gen6 ASHP with 50L volumiser and all new large radiators. 7.2kWp solar (south facing), Tesla PW3 (13.5kW)
Solar generation completely offsets ASHP usage annually. We no longer burn ~1600L of kerosene annually.
- 26 Forums
- 2,233 Topics
- 49.7 K Posts
- 86 Online
- 5,898 Members
Join Us!
Podcast Picks
Latest Posts
-
As mentioned in other forums when 2 x 10kw grant aerona...
By bretix , 7 hours ago
-
RE: Effect of Mitsu PAR WT60 Wireless Controller
Hi David, If your Mitsi is still on weather compensa...
By RobS , 9 hours ago
-
In most cases I'd expect such liability would be tested...
By Transparent , 10 hours ago
-
RE: Say hello and introduce yourself
This discussion has gone quite deep for our Hello &...
By Transparent , 11 hours ago
-
RE: Midea ASHP – how to set weather compensation
@pash44pump - it sounds as though you are close to havi...
By cathodeRay , 11 hours ago
-
Let's see if we can tempt @glyn-h to give his insights....
By Mars , 13 hours ago
-
RE: New Fogstar 15.5kWh upright solution
I should've read further before posting the above. ...
By Transparent , 13 hours ago
-
RE: Question about Heating Pump Operation mode – Ecodan FTC6 v20.06
This isn't an exact reply to your question, as I don't ...
By rhh2348 , 14 hours ago
-
RE: Daikin Octopus installation update - I saw my first defrost. 😍😂
@radwhisperer It does seem to occur most loudly the mor...
By Jancold , 15 hours ago
-
RE: What crazy nonsense are inverter limits and why are they imposed?
Let's first note what those parameters are. They are ...
By Transparent , 16 hours ago
-
I’ve met the Flexi-Orb team, and they come across as ge...
By Mars , 16 hours ago
-
Webinar on "Heat Pumps for Home Owners" Thursday 20...
By Mars , 18 hours ago
-
RE: Help me keep the faith with my air source heat pump installation
@grantmethestrength also i need to check the other stra...
By AdamK , 18 hours ago
-
@jamespa @old_scientist @iaack Hi, thanks for the inp...
By bontwoody , 19 hours ago
-
RE: Should Our Water Circulation Pump Be Configured to Run All The Time?
This is how Daikin run their heat pumps. Weather Comp...
By RadWhisperer , 21 hours ago
-
Solis S6-EH1P8K-L-PLUS – Why I Chose It and What I’ve Learned So Far
I ended up with a Solis S6-EH1P8K-L-PLUS (8 kW) hybrid ...
By Batpred , 1 day ago
-
RE: Options on flushing my system
@grantmethestrength with your pragmatic approach and &#...
By SUNandAIR , 1 day ago
-
RE: Samsung Heat Pump – Can't Activate TW2 Pipe Sensor (for Delta T Control)
@batpred For the moment I'm sticking with what I have, ...
By bubuontheweb , 1 day ago
-
RE: Electricity price predictions
Nice to be back on track! If we all had the interest, s...
By Batpred , 1 day ago