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ASHP - disconnect between National and local government objectives
Encouraged to get an ASHP and then refused planning, even as permitted development... We've spent the last year going through the process of getting government HUG2 funding to install solar PV and a complete ASHP (inc radiators etc) moving away from old storage heaters. We wanted solar PV and updated storage heaters, but…
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UFH - Pump setting
I am new to UFH and ASHP and have been playing with the flow settings. I do have the companies design for the system, but it's not clear what pump setting I should use. Currently on 2. The pump is a Grundfos UPM3. Unfortunately I am unable to translate the Grundfos UPM3 flow tables to what setting I should be using. Can…
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Annual ASHP Servicing
Hi All, Would like to see what others do re: servicing/maintenance cover of their ASHP and general experience in this area. Background: we live in Scotland and took advantage 2.5yrs ago of the available grants and interest-free loans, and replaced our gas boiler with ASHP, solar panels and a battery. The company advised…
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ASHP how to reduce stop vibration
My neighbour has had a ASHP installed ( semi detached house ) in his front garden. The vibration that it is causing on the front of our house can be felt on the first floor in the early hours of the morning. It is no doubt going to get worse in winter as he draws more off it to heat his home. Any suggestions ( low cost )…
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ASHP, solar array with battery storage what temp settings for a winter break?
We have just had a Cosy 6 ASHP installed and have solar array 15 panels with battery storage and are going away on holiday for 3 or 4 months from the end October. What temperature should we set the water and heating for optimum performance and house protection?
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Heat Pump - KwZ usage through the roof
Hi, We moved to a newbuild in March 2021 with gas and electric provided by heat pump. Each year, we are using around 17,000 kWh, according to British Gas, and spending more than £5,500 in the process. We are a family of two (and a dog) and it's an average-sized 4-bed house. The heat pump installer insists that there is no…
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Very confused about Air Source Heat Pump
Hello,My Mother has qualified for a grant to have Air Source Heat Pump installed with new radiators and solar panels with battery backup. Unfortunately, due to having existing passive solar water heating panels, the installer says they cannot install the pv solar panels, but can do the Air Source Heat Pump. On the leaflet…
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Mitsubishi Ecodan. Hot water but not heating. Help!
So, room temp is 19C, I have put the desired temp at 24c. Flow temp I have turned up to 50 to see if that will kick start the heating. No luck. Water is on timer and when forced play, the fan works and water is heated. On the main control panel the heating is showing as restricted and paused, however, when you go into the…
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ASHP - Flow Temperature Result
I ran my underflow heating for the first time yesterday. I have attached a small temperature probe which is connected to the flow side of the heat pump as it enter the storage unit. Below is the result. The first peak is for DHW and the second is the flow temperature for the UFH. The system ran for 8 hours and was…
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Annoying issue with Daikin Altherma 3M Disinfection
Hi, I am hoping you may be able to assist in finding a solution to an issue I have been having with my heat pump (Daikin Altherma 3M) disinfection that runs once per week. My setup: I have the heat pump, solar panels (not relevant), and battery (partially relevant). The issue: The issue is that the disinfection starts as…
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Old boiler beeping - what does it mean?
I have an old Ideal WLX CF40 boiler. It probably should have been replaced years ago but following ill health and redundancy I have not managed to do it. But it has always been reliable. Now there is a chirping sound coming from the boiler and I have no idea what it means. Can anyone tell me what this means? Is it safe to…
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Danfoss tp5000 thermostat
Hi, I have an older model Daikin ASHP, fitted with what I believe is a Danfoss tp5000 room thermostat. I believe that the temperature sensor in the thermostat is not working accurately.It always seems to think it's around 17 degrees when it's a lot colder. I was advised to keep the desired temperature to 18 degrees, all…
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Heatmiser UH1-W, UFH Actuator and Manifold Pump
Hey guys, have an issue. Noticed rooms are cooler than should be. Checked the Heatmiser UH1-W and although the lights are on for room circuits and pump, there are no actuators energised. These are Emmeti actuators which are closed normal state. There are 7 circuits on the ground floor, all run by wireless (not wifi) room…
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ASHP - Underfloor Heating - Warm Up Time
ASHP with underfloor heating. How long does it take to warm up (i) in autumn 1st year switch on (ii) following a overnight setback (iii) an increase in temperature demand of say a degree C? I know every property is different, but just looking for some general data. Updated. The floor is screeded.
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IVT HT Plus E7 - what happens next?
back in 2009, I ordered a GSHP for a New Build House. I ordered from Ice Energy who spec'd 6kw HT+ E6. My new build house is 160m2 over 2 floors, ufh on both floors. I told them I wanted to extend in the future so they up'd the spec to 7kw. I dug 2 x 50m trenches for 200m of pipe in each trench as per their plans -…
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3 Port Valve
so I have a problem with pressure increase on the heating side (underfloor heating) of an IVT HT+ E7. Every time the domestic water is heating, the pressure climbs on the under-floor heating side. I telephoned ALTO who told me my expansion vessel must be bad. I wasn't entirely convinced, thinking it must be the 3 Port…
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ASHP - Maximising Efficiency
This will be my first season with a ASHP so looking for some advice on the best way to get the most efficiency out of the system. The property is a 200sq m bungalow, with a large south facing family room with a large bi-folds (lots of solar gain). There are 4 bedrooms, 2 bathrooms. All rooms have their own heatmiser…
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GSHP and UFH maintenance interval
Hi folks. I wonder if I could ask for your experience and recommendations. We have a GSHP with vertical boreholes and UFH throughout the house. The installer is recommending a yearly annual service. Having had it done once, it seems to me to be checking filters and concentrations, topping up levels and the like. Given how…
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Octopus refund.
I had a survey from Octopus for a heat pump. Even though we have a rural semi, the surveyor said there wasn't anywhere suitable to put the pump. He said my £500 deposit would be refunded within 14 days. The survey was 14 August and I hadn't heard anything from Octopus about the refund since then. I phoned them up this…
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Zoned Areas in Open Plan House..any point?
Good evening. I have seen a property which internally has rooms but no doors as such , you can literally see from room to room and through to the staircase. The person selling says it has ‘zoned’ heating control. It may be my age , but not sure how the heating is contained in a zone if its all open plan(ish). Surely the…
