Flow Temperature settings of my Mitsubishi Ecodan heat pump set correctly?

Hey @Cockcroft,

I’m glad you’ve found the topic helpful, I hope that you manage to find a solution after some more research!

If you do, please pop back as your advice will help others with a similar issue.

I hope Christmas organising was more straightforward! 🙂

@juliamc  you asked for a photo of the pump (“Hiroheater” apologies to Hirohito….) in the snow. Here it is. Note the unfinished snow shelter….I have a low concentration span…..it will be finished in summer 😂 We have about 6” at the moment (I clear the front if the pump every day)  and still falling. In November we had a week of -11C or more , consumption increased to about 30kwh but still only half what my storage heaters used to use. At the moment it is minus something all the time and Hiro is doing just fine, under 30kwh a day, with the room temp set at 19C 24/7. Hope it isn’t snowing where you are as you guys down in Blighty don’t do snow very well…..

Hi @amanda1 Lovely !! You’re quite right - we don’t do snow very well down here in the south. The air’s very dry by the time it’s dropped all its snow on you, which means fewer defrosts for the heat pump here. The coldest it’s been is -5 overnight, but the house is fabulously warm, not being as hardy as you we have it at 22 deg - helped by the sun for the last couple of days. 
Your shelter’s looking good, I wonder if you should knock a couple of panels out of the sides so you don’t block the airflow too much, though I imagine there’s quite a good airflow where you are up in the hills. 

@juliamc the side panels are palettes so they aren’t solid and the air can flow. I would have the temperature at 20 for preference at the moment, but I am determined to keep the cost down. It has cost me just over half as much as the storage heaters used to cost, so far. For some weird reason, other people in the village who have exactly the same set up, same installers, same sort of house, are paying twice as much and saying that these pumps don’t work well here. Which suggests that the only variable, THEM, is responsible for their costs. I think they are trying to operate them as gas boilers. I am more and more convinced that timed settings are not cost effective. BTW I couldn’t live in 22C….I would melt!

You’re so right, although it seems counterintuitive that keeping a hp running all the time is cheaper than having it on a schedule. Maybe it could be compared to only switching on the fridge for a few hours a day but still constantly opening the door. 
There should be an idiots guide to using a heat pump handed out with each installation. I think I might write one !!

Ah yes, I see what you mean re the pallets. My outdoor unit is installed in a fairly enclosed yard so I’m trying to improve the airflow around it.

Heat Geek has a youtube video where he tests out an air source pump in an enclosed space. I am intending to put a roof on my “shelter” - it will be about a metre and a half above the pump - the whole purpose of it is to stop the tons of snow that falls off the roof falling onto the pump. I have a snow guard on the roof above it also. I clear the snow in front of it every day because I imagine it doesn’t do it much good to be surrounded by its own supercooled air.

There is one, ‘Bodge Busters’!

I sent a pic of our DHW to cylinder to world heat cylinders and they told me to change all the pipe lagging to Armacell lagging also using with Insulated tape. Cylinder is in the loft and they said it may as well be outside as the loft in winter is freezing,,so treat it as outdoor. Told us to insulate every single pipe coming out of it, even if its void & not used, as we’ll be losing heat out of it. So weve done all that, installers had used standard lagging..not for freezing outdoor temps..Can anyone tell me how they use auto adaptive mode, where does it take the temps from. Ive been using W/C...i dont have wifi room stats just the FTC controller pad that I assume has  a stat in. I put it in ‘room stat’ mode thinking it would use the curve settings, but its not, flow is like 48,,,my curve is set at 35/-5 and 25/15…. house is redders! but ive read ppl using AA mode as its cheaper, what do I need to do this/try this? Comp Curve in winter is using 60kWH in 24 hrs...monthly bill for |Dec 23-Jan 24 was £374. 17 rads in bungalow, standard insulation.

Wouldn’t that also depend on usage pattern and energy tariff as well?

@Jenp Without the WiFi controller I’m fairly sure it’ll use the stat in the main controller. Where is yours situated?
Wherever it is that temp will be used as the indoor temp, which is shown on the controller screen…  @amanda1 and @M.isterW have the WiFi controller and are using AA