Last seen: Oct 2, 2025
@pash44pump Since you will inevitably have to deal with controlling the pump, here is my advice. Heat pumps produce hot water at a set temperature, ...
Referring to an early point, night time firing could be caused by legionella precautions, could it not?
@pash44pump I don't think piping is the problem (though it may increase running cost). Your pump should be able to deliver max outflow temperature of ...
@pash44pump I don't know the procedures in UK, but in Greece every property has an energy certificate, which is the starting point for heating/cooling...
What are the weather compensation settings ? Are you sure the system runs according to these settings ? Are there internal thermostats at low temper...
Which part of the sentence do you consider complete nonsense: "complicated" or "ineffective" ?
Weather compensation is a complicated and ineffective way to control heat pumps. Your house was OK when you were on oil, because oil heater control de...
But this is the whole point of our lengthy and interesting conversation. At this point, I owe to apologize if my English sounded a bit hostile, this w...
@jamespa There are numerous, very detailed, simulators that show the capabilities and benefits of each approach. Further, the delay you mention, is ac...
@jamespa Classical PI controllers need tuning i.e. commissioning. This is difficult to achieve, unless well-trained. This is why weather curves were e...
@jamespa OK. Let me repeat that I started this post because I think the "weather curve" method is odd, outdated and wrong. Here is my reasoning: 1. ...
@cathoderay I don't think (b) is fixed flow temp. Where did you see this ? If this is the case, it destroys all the benefits of an inverter driven pum...
Latest Posts
-
RE: Testing new controls/monitoring for Midea Clone ASHP
@benson Manchester? Cromwell would be turning in his gr...
By Papahuhu , 17 minutes ago
-
RE: Replacement Inverter for old FIT system
@bontwoody I have a single string 3kW solar AC inverter...
By Old_Scientist , 3 hours ago
-
Octopus removed our gas meter for free a couple of year...
By robl , 4 hours ago
-
RE: Bosch CS5800i 5kW - Experience So Far
Good to hear of peoples experience with both your type ...
By dgclimatecontrol , 5 hours ago
-
RE: How to Understand Wiring Up a Heat Pump
@renewables345 I completely agree with @transparent a...
By JamesPa , 6 hours ago
-
-
-
RE: Why Air Release Valves and Deaerators are Non-Negotiable
I think that's a key point. An air-release valve shou...
By Transparent , 10 hours ago
-
RE: Air source heat pump roll call – what heat pump brand and model do you have?
Manufacturer: Worcester Bosch, Earth Save ProductsModel...
By Steelbadger , 11 hours ago
-
RE: Say hello and introduce yourself
Hello everyone. My partner and I recently had a Bosch C...
By Steelbadger , 11 hours ago
-
RE: Heat Pump Installers: Competence, Illusion and the Hard Truth Homeowners Must Face
@pirate-rich there’s a lot to do and plan, and the wish...
By Mars , 23 hours ago
-
RE: Help me keep the faith with my air source heat pump installation
@adamk Its a bit complex: My 28mm primaries run for a...
By JamesPa , 1 day ago
-
Can you separate out the scop data between hot water an...
By Andrew J H , 1 day ago
-
RE: Solar Power Output – Let’s Compare Generation Figures
Further, these bar charts may throw a few more lumens o...
By Toodles , 1 day ago
-
RE: Heat pump and wifi kit connection.
Wi-Fi kit covers any Samsung device that has a modem in...
By Alfapat , 2 days ago
-
RE: Sizing - Save me from my headache
If you get an R290 pump you should be able to heat the ...
By JamesPa , 2 days ago
-
RE: Large heat pump options for church building
@aventus-eco Thanks Sean, will drop you a line.
By Josephiah , 2 days ago
-
RE: Moving FIT array onto a Tesla Powerwall 3 possible?
@toodles that’s good news for @adamk
By Judith , 2 days ago
