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Last seen: Jan 8, 2025
Mine loses about 0.6 degrees per hour so a bit less. Is your HW tank outside the house, e.g in the garage? That would make it lose a bit more than in...
@westkent I think you are suffering from the same problem described above; Melcloud over estimating consumed energy when the heating is off.
Am I misreading these graphs? It looks to me as if the overall COP is around 3 across the year, including the shoulder months. With HW being 40-50% ...
@tobydeh, - is it just the downstairs that is 180m2? From the plan it looks like the total is 360m2 or so. If so, your consumption and the ASHP si...
Looking at your numbers quickly I'd agree; about 50% oversized. These rads are enormous. The sizes you quote aren't quite standard but a 2m wide K3 ...
@Derek-m, if you look at the dip switch settings in 5.4 of the FTC6 manual, it says how to set the logic for the 3rd party thermostats. If these were...
@adam_colwell Have they ever worked? For 3rd party controllers to work with the Ecodan they need to be working and with good batteries, connected t...
@akius, the total energy usage in the MCS sheet is the amount of delivered energy your house needs for space heating and DHW. If @Tim441 is consum...
Hi and welcome to the forum. It's hard to equate test conditions performance to real life. Having said that things have moved on, and modern ASHP...
@Shep, having a booster isn't necessarily a problem as some ASHPs (e.g. some Daikin models) seem to come with one as standard. I would be more concer...
Not sure but somewhere there should be a design ambient temperature/flow temperature for the heat pump - something like 50 deg flow at -4 deg ambient....
Hi an welcome to the forum. I'm assuming you've had full heat loss calcs done and they support the spec of a 12kW ASHP. What's you outside temperatur...
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Degrees of Separation
Latest Posts
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RE: HeatGeek vs Octopus surveys: puzzling disparity - any ideas why?
Hi, sorry that I have been absent for a while. I'd like...
By baroquebank , 3 hours ago
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RE: To re-pipe or not to re-pipe? Moving from oil boiler to air source heat pump.
@penval, really useful update. After all the discussion...
By Mars , 6 hours ago
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RE: Who's your electricity provider and what's your tariff?
@papahuhu I prefer to look at it simplistically. We d...
By Old_Scientist , 1 day ago
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RE: How Accurate Is My DIY Heat Loss Calculation?
D'oh - of course. I shouldn't post before my brain is f...
By Old_Scientist , 1 day ago
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RE: Questions about A2A for heating as well as cooling
@rob-of-york I would concur with the underfloor insulat...
By Toodles , 1 day ago
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RE: New Vaillant Arotherm controls link to existing thermostats ; wired vs wireless
Nothing attached! I have rads but UFH makes the case ...
By JamesPa , 1 day ago
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RE: Cooling with air to water heat pumps
Passive cooling should always be the first call. Keep ...
By JamesPa , 2 days ago
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RE: Do I add Air Con or MVHR to existing A2W ASHP?
@rob-of-york Thank you, I’m thinking along these same l...
By Toodles , 2 days ago
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@Mars Good questions! The downstairs unit did the maj...
By Rob of York , 2 days ago
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RE: Volumisers in Heat Pump Systems: Does Placement Matter?
@dave, I think @jamespa has probably identified the mos...
By Mars , 3 days ago
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RE: Plug and play solar. Thoughts?
My thought is simple. Bring it on and bring on plug in...
By JamesPa , 4 days ago
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RE: Heat Geek mini store vs pump size
Yes I agree, that’s why Heat Geek have most likely sele...
By Tomtheheatingengineer , 4 days ago
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@tomtheheatingengineer, thank you, and welcome to the f...
By Mars , 4 days ago
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RE: Is the "divide by 2900" rule still valid?
Really flow rate is a pipework limitation not a water p...
By JamesPa , 5 days ago
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