-
Heat pump install to existing UFH system?
Hi, a bit of a newbie and would appreciate a bit of guidance. We have a modern (built 2005) 5 bed detached house, that has wet UFH throughout downstairs and 6 radiators and 3 towel rails upstairs. Big pressurised hot water tank, and we are on oil fired central heating, with very occasional immersion boosts if we are going…
-
Heat Loss Calculator - Recommendations
Hi all! Can anyone recommend a good heat loss calculator for an ASHP installation? I have previously used Stelrad Stars, with which I'm familiar, and is fairly comprehensive. Thanks!
-
Octopus Cosy 6 actually ready for market?
Octopus's own-brand ASHP, the Cosy 6, looks like it is getting close to actually being ready for the market, since it now has MCS certification. You can see it by going to https://mcscertified.com/product-directory/, then Search By Product, then insert the certification number HP0255/03. On the face of it, the SCOP figures…
-
Newby heat pump questions
my gas boiler is on its last legs and I am thinking of having a cozy six heat pump installed by octopus. 1. obviously I will have a hot water tank installed as part of the installation but once up and running is it possible to have the heat pump supply radiators only i.e not heat the dhw - maybe a setting somewhere? 2. I…
-
Advice on a Daikin Altherma 3 by Octopus
Hi! I've been given a quote for a Daikin Altherma 3 (EDLA08E2V3), and am seriously considering it. The quote is just shy of £4000, which I don't think is too bad. I haven't had any other quotes, but Heat Geek estimated over £6000 on their website. Octopus would replace all but one radiator. I'm in East Anglia and the…
-
Government grant heat pump
Hi I just need some advice, my Mum received a government grant to install an air source heat pump which was done through Warma homes. She is a couple of days shy of a year since install. She has gone to turn the heating on yesterday and it came up with an error code. She called Warma who told her to call the pump…
-
Help optimising ASHP settings
We've recently had a Samsung Gen 6 ASHP with 200L cylinder by Joule. It was part of a grant including solar and insulation. The installers were in and out very quickly and more or less shrugged their shoulders when asked questions about settings, and the more I've been digging into the forums the more I've been feeling…
-
Green Lane IVT Heat pump C series
Can anyone help please. I am getting a recurring fault on our heat pump, 'High heat distribution system delta (GT8/GT9)' each time we have got a local engineer to come and clean the particle strainer. The last time he came, we asked the question and he advised that we didnt need to get the radiators flushed through. As we…
-
UFH Control - Single room stat control
The underfloor heating is controlled by 2 x heatmiser uh8-rf control units and 8 room thermostats. These control 12 Ambiente Actuator Valves on the manifold. I am trying to set the system up such that the heating is controlled by 1 room thermostat (family room). If I set all the room stats high such that all the actuator…
-
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…
-
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…
-
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…
-
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 )…
-
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?
-
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…
-
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…
-
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…
-
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…
-
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…
-
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…
