Last seen: Sep 15, 2025
@derek-m, good points. Because we have a bivalent system, we've had to install two separate metres that are exclusively connected to our heat pump so ...
@saz, so just to be clear, Vaillant have "fixed" the circulation pump (by getting rid of the sealant) and cleared your system out to nullify any block...
I think that's @witchcraft.
@witchcraft, thanks for the update and I'm very interested to see how this all plays out.
I ran an experiment this week to see what our COP and electricity consumption would be like by varying flow rates (45C and 40C):/p> As the winter co...
@saz, who was the original installer? Are you at liberty to reveal who it was?
I’ve just reread the thread and you have had a Vaillant engineer come out. This engineer that just visited, were they from a completely new company?
I can definitely empathise @saz - it’s very, very frustrating, even more so when things aren’t working and costing a lot of money to run. Have you ask...
This is sadly very common with Powerwalls. I’ve heard of many people with delays that have been over 10 months. Part of the issue is that some install...
Welcome to the forums @howiewsl. In addition to the relevant questions raised by @robl, can you please let us know the approximate square footage of y...
@derek-m, good suggestion. I'm going to hook it up up stairs where there's virtually nothing drawing power and see what happens. I'll try and get arou...
@derek-m – this is the guy that keeps tripping.
Latest Posts
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RE: Electricity price predictions
@julianc Expressed as a flow diagram, I suspect one wou...
By Toodles , 19 minutes ago
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RE: Big Changes Coming to Our Heat Pump System
@jamespa The dormitories at my boarding school (in Exet...
By Toodles , 22 minutes ago
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RE: Testing new controls/monitoring for Midea Clone ASHP
@cathoderay yes there is the modbus register list at th...
By benson , 32 minutes ago
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RE: Heat Pump Damage on install - useable or dealbreaker?
@benson I imagine that this may well be a Daikin unit a...
By Toodles , 43 minutes ago
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RE: Who’s Caved and Switched the Heating On Already?
In the last week, the external temperature in south Man...
By GrahamF , 16 hours ago
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Ok. Two schools of thought. The first is to run the ...
By JamesPa , 16 hours ago
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@drei Willing as I am to help, I don't think I'm yet ...
By JamesPa , 17 hours ago
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RE: Is Your Broadband Router the Weak Link in Your High-Tech Home?
I hear you on the locality issue @transparent, and I ag...
By Scalextrix , 19 hours ago
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Selling 5 year old ASHP & Gas Combi Boiler - £590
Selling a 5-year-old Daikin Altherma Hybrid Air Source ...
By Paul G , 20 hours ago
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RE: Midea ASHP – how to set weather compensation
@pash44pump Referring to the problem of rooms with diff...
By Tasos , 21 hours ago
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RE: Help me keep the faith with my air source heat pump installation
Er true, it should have read l/hr!
By JamesPa , 22 hours ago
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@damon thanks. I will do as you suggest. Hopefully I wi...
By bontwoody , 2 days ago
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RE: Is a Valliant Inline 6kW heater a BUS buster?
Much of that is true in principle, but its not likely t...
By JamesPa , 3 days ago
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RE: Heat Pump Servicing & Maintenance – Good Value or Rip-Off?
@dgclimatecontrol I attach the responses from 2 potenti...
By pash44pump , 3 days ago
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RE: Buffers, hot water and cooling
@dgclimatecontrol thanks, that's helpful.
By JamesPa , 4 days ago
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RE: Failing heat pump system - seeking thoughts on a rebuild
I realise im overdue an update on my situation. first...
By Cleardene-ashp , 4 days ago
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RE: Replacing Worcester oil boiler with an ASHP
@toodles thanks. I was told by the engineer that this h...
By JulianC , 4 days ago
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RE: What crazy nonsense are inverter limits and why are they imposed?
A week later, I'm finally picking up this comment... ...
By Transparent , 4 days ago
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RE: COP is not the only measure of efficiency
We keep all our TRVs fully open using the whole house a...
By Old_Scientist , 4 days ago
