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Last seen: Jun 26, 2026
@bretix we're all learning on these systems 🙂 I would set the secondary pump to full flow, always. If the pipe distance between your low loss header ...
@bretix the dial on the HW cylinder is just a cylinder stat, turn and set it to whatever hot water storage temperature you want, it will then revert t...
Oversize unit: it may cycle in and off more on low output, as the heating load might be below the minimum turn down capacity of the unit. That will co...
As Osiwu says, short circuiting of the evaporator airflow, where the discharge air ends up back at the coil inlet face, will reduce performance. But t...
Really sorry to read this @jswhite. 16kW is a large unit for 120m2 heated area, especially if you usually have diversity and only some rooms heated. Y...
The HIVE main thermostat overrides steady ASHP control if it's switching on and off. You can tell if it is from the HIVE app temperature graph. The HI...
Welcome! I have a similar sized house, EPC C, 1992, 4 bed detached. Formerly CH and HW from Kerosene, which was actually cheaper per kWh than mains ga...
Condensate drains could have been routed through the concrete pad to drain into the hardcore substrate underneath. A 50mm core cutter would have made ...
@editor I got the same, but for my mother's retirement flat, which is an account in my name. She only has electricity available to her. Her daytime ta...
The Grant/Chofu ASHP controller does not show if Weather Compensation is enabled or not from the 'home screen' display, you need to enter installer le...
I've tried running 24/7 with 18degC general space temperature. Lounge is boosted with a log burner the trickles heat upstairs too. It has been very co...
@bn06amp I'm afraid I can't spot it either there! It depends on where it is on the circuit, you don't need a bypass on the primary (ASHP) side with a ...
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Latest Posts
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RE: Comms and power cabling to outside unit
@jamespa I can only guess the issue is with cost of ...
By Papahuhu , 49 minutes ago
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My 4 bed 1960's dormer bungalow has got a 6KW Mitsubish...
By Clockworks , 2 hours ago
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RE: Vaillant Arotherm Pro vs new Plus
when our system was installed in September 2 years ago ...
By Judith , 14 hours ago
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RE: Rate the quality of your heat pump design and installation
I had a Heat Geek lead install by Green Heat Norfolk. T...
By Orlando , 22 hours ago
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+1 that works well If most of the thermal mass is in ...
By bobflux , 1 day ago
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RE: Mitsubishi Ecodan FTC6 settings
While @F1p's dongles are great, the FTC can do this its...
By RobS , 2 days ago
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RE: Samsung heat pump - data cable issue
If it's a data cable, current will be minuscule, voltag...
By bobflux , 2 days ago
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RE: MCS Quality Audit – Has Anyone Had One? Did It Lead to Remediation?
I got hit with an RHI audit in 2022. It was far from c...
By Abernyte , 2 days ago
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RE: Electricity price predictions
@papahuhu Groucho Marx had something to say about no...
By Toodles , 2 days ago
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RE: Octopus Cosy Heat Pump Owners & Discussion Thread
@jamespa haha very true, although the engineer yesterda...
By swwils , 2 days ago
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RE: What a difference a few degrees make.
Wow. Having accepted the challenge, I ran the cold tap ...
By Old_Scientist , 3 days ago
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RE: HeatPump maintenance in Swindon area?
@vince31 have you tried using our finder:/p>
By Mars , 3 days ago
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Looking for beta testers for a new homeowner heat pump tool
Over the past few months I've been building a brand new...
By Mars , 3 days ago
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