
Last seen: Feb 21, 2025
Hi Anca1808, Welcome to the forum. First off, please try not to panic. We just need to do some problem solving. 1. Where are you ...
Hi AndrewJ, There's several design principles which vary from designer to designer. The ones Octopus have designed to are generally considered t...
Hi Carpenterstation, Welcome to the forum. 17kW Heat loss on a 450sqm property is definitely on the lower side, that's a peak heat load of just ov...
Hello, Buffer tanks have several functions which determines whether or not they are necessary in an installation. 1. Hydraulic separation for ...
Hi James, The actual values used for MCS are the room design temperature, the insulative values (u-values) for the property as well as the unique m...
@bontwoody Good spot there, yes you are absolutely right, my apologies OP. dT should stay consistent but min (crucially max) flow temperature shoul...
Hi @chansug, a warm welcome to the forum. A few points if I may on your quotes recieved. 1. The heatlosses are all (relatively similar). You m...
Cycling every 15-30 mins is not ideal for wear and tear on the unit, no, but your efficiency is 'ok' by most standards which is the key impactor of ru...
@jaynieq Hi Jaynieq, All the advice offered by JamesPa is, as per usual, spot on. Unfortunately, ECO4 installations are frequently where we s...
@alfapat Everything as commented above is pretty much spot on- the lower the flow temperature the heat pump is being asked to produce, the better the ...
@abbote Hi there, Well done with all the fault-diagnosing you have done so far and sorry to hear that you have been having such issues with you...
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Latest Posts
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RE: Midea ASHP – how to set weather compensation
@cathoderay the dataloggers have been purchased and are...
By pash44pump , 4 minutes ago
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RE: COP is not the only measure of efficiency
I am a little sceptical of this, not least because, in ...
By jamespetts , 47 minutes ago
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RE: Renewables & Heat Pumps in the News
To unpack this a little.... 1) how many of us in this...
By Lucia , 1 hour ago
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RE: Heat Pump Servicing & Maintenance – Good Value or Rip-Off?
@ashp-bobba Well done for stepping in where most would ...
By JamesPa , 3 hours ago
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RE: Who’s Caved and Switched the Heating On Already?
I have automated this decision. I have a heat pump with...
By jamespetts , 11 hours ago
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RE: Vaillant aroTherm Plus 10kW thoughts?
@realevil the fans and fan speed / coil size (height, w...
By ASHP-BOBBA , 12 hours ago
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RE: Mitsubishi Ecodan 11kw Defrosting Issue.
@morgan this can just be done by your sepecilist when t...
By ASHP-BOBBA , 12 hours ago
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RE: Buffers, hot water and cooling
I agree it seems like a lot of work particularly as its...
By JamesPa , 13 hours ago
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RE: Anyone still weathering it out with Agile?
@toodles I guess it all comes down to import averages. ...
By Tim441 , 17 hours ago
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RE: 300 Liter Tank - Do I have to heat it all?
The size of DHW tank affects the anti-legionella cycle....
By Transparent , 18 hours ago
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RE: Heat Pump SCOPs – The Truth Might Not Be What You Think
@scalextrix Name plate capacity
By HCas , 21 hours ago
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RE: Solar Thermal DHW and ASHP
I was originally contemplating a solar thermal installa...
By jamespetts , 21 hours ago
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RE: Solar Power Output – Let’s Compare Generation Figures
My system installed in July 2024 has produced 6.4mWh in...
By jamespetts , 22 hours ago
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RE: A Customer's Lessons Learnt from a Heat Pump Installation in a Large House
@judith thanks for your suggestions. Starting from col...
By GrahamF , 2 days ago
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RE: Inventor (Midea) Heat Pump short cycling advice
I switched to "fan coil mode" to be able to set water t...
By immunity , 2 days ago
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RE: DESNZ doing a survey which asks the right questions!
Without a survey their only source of data is probably ...
By JamesPa , 2 days ago
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RE: Can you help with our research: solar panels, EV chargers, home batteries, heat pumps?
Just done your survey!
By Judith , 3 days ago
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RE: Failing heat pump system - seeking thoughts on a rebuild
@cleardene-ashp just thinking about your issues here. Y...
By Judith , 3 days ago
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RE: What is the Heat Geek Guarantee?
@judith, I’m with you on Heat Geek, but there really do...
By Mars , 3 days ago