Last seen: Jul 4, 2025
Call and ye shall be heard. If its anything like mine - big IF - then you first unlock the controller and go to MENU FOR SERVICEMAN - CODE 234 ...
Got a little warm in the house today - even my wife said so! So it must be true. I've adjusted the curve to 50@-4 and 25@16 this should be good enou...
From what I've read, you need a fairly large (and very tall) turbine for it to make any financial sense. Small scale turbines just aren't great based ...
@mike-patrick I am in the view of everyone else here. You should do away with all the timed heating and do the whole house. If you zone it there is a ...
@kev-m mine is measured in the unit. I can see exactly what it's current flow rate is on the controller and the unit measures heat delivered in its ap...
@kev-m I am not 100% sure you for you. But as long as you know the flow rate and the temperature you know the heat in KW. It takes 1W to heat 1cm3 of ...
Today seems basically perfect in terms of heating. It's pretty much been a constant 21° in the house with a heating COP of 4.4. so far we've used 12kw...
@rv3 this seems to be over double my Watts/m2 (30000/224 = 133w/m2) of power to heat your home. So first stop is weather comp to lower your temps. I'm...
@kev-m looks like it's 68w/m2 (11,000w/160m2) then, basically the same as our detached house (which was a bungalow originally). So we have very compar...
@derek-m by tracking your own power use vs ambient you'll be able to create your own heating curve. You could just use correlation - I'll see if I can...
@derek-m based on 13 degrees ambient I should have needed (delivered heat) 92kw (3.85kw/hr) yesterday to maintain temperature. I used 54kw at an avera...
@derek-m this is from my estimated house heat loss based on room by room assessment @ 10 degrees. However these figures just don't represent real worl...
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RE: Midea ASHP – how to set weather compensation
I think it is a bug in the code, it comes on even when ...
By cathodeRay , 8 hours ago
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RE: Heat Pump Servicing & Maintenance – Good Value or Rip-Off?
@ashp-bobba wish you lived closer to Wiltshire! My inst...
By pash44pump , 9 hours ago
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RE: COP is not the only measure of efficiency
@jamespetts Interesting post, thanks. Here are my thou...
By GrahamF , 9 hours ago
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RE: Who’s Caved and Switched the Heating On Already?
@editor So… who’s given in and turned the heating on al...
By Lucia , 9 hours ago
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RE: Havenwise App Help & Forum Support – Get the Most from Your Heat Pump
I am pleased to say at 4pm today we have added another ...
By ASHP-BOBBA , 10 hours ago
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RE: Buffers, hot water and cooling
@jamespa Your reasonably close! Especially with warmer ...
By dgclimatecontrol , 12 hours 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 , 18 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 , 1 day 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 , 1 day 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 , 1 day 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 , 1 day ago
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RE: Heat Pump SCOPs – The Truth Might Not Be What You Think
@scalextrix Name plate capacity
By HCas , 2 days ago
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RE: Solar Thermal DHW and ASHP
I was originally contemplating a solar thermal installa...
By jamespetts , 2 days 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 , 2 days 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 , 3 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 , 3 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 , 3 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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