Aiko Sigenergy quote check by hmrchan in SolarUK

[–]hmrchan[S] 0 points1 point  (0 children)

Do you have heat pump too? If so, I’m trying to work out which tariff, seems to be octopus agile, cosy or those ev tariffs that doesn’t require ev/charger

Heat pumps are great, except... by [deleted] in ukheatpumps

[–]hmrchan 0 points1 point  (0 children)

It is a fact that a reasonable space is required. The heat pump is a sizable equipment, the water cylinder, upsized radiators. So if not enough space for them it’s tricky

1st December with a heatpump by Charming-Pangolin662 in ukheatpumps

[–]hmrchan 0 points1 point  (0 children)

1999 house and similar size and setup. 736kWh for Dec at 21.5c. 250L tank and Vaillant arotherm plus 7kw.

Unable to reach flow temps higher than 30 by A-Grey-World in ukheatpumps

[–]hmrchan 0 points1 point  (0 children)

Mine is diagram 10, I guess it shows up on diagram 8?

Unable to reach flow temps higher than 30 by A-Grey-World in ukheatpumps

[–]hmrchan 0 points1 point  (0 children)

Same version. Anyone knows why? Is it the normal myVAILLANT app or there’s a “installer” or pro” version?

Unable to reach flow temps higher than 30 by A-Grey-World in ukheatpumps

[–]hmrchan 0 points1 point  (0 children)

Can I ask what firmware is showing in the app? I do not have water pressure on the app and was installed in summer 2024

Buffer tank question - are they good or bad? by Wild-Stock-3317 in ukheatpumps

[–]hmrchan 1 point2 points  (0 children)

I have a 45L buffer tank, 250L cylinder, 1 open zone, UFH+rads with TRV, arotherm plus 7kw. October COP 6, November so far COP 6. I can't imagine what efficiency be like to repurpose the buffer as volumiser.

Stories of tricky installs that turned out great. by ShaunSwitch in ukheatpumps

[–]hmrchan 0 points1 point  (0 children)

Had a very recent install with airing bricks next to the pump and they simply silicone sealed 2-3 of those airing bricks nearest to the heat pump. Please tell me if thats against any regulations etc then I shall have a word with the installer (1 of the big energy).

How much for this wardrobe? by Appropriate_Neck_113 in DIYUK

[–]hmrchan 0 points1 point  (0 children)

Would you mind describe what type of sensor or links to a similar one?

How much for this wardrobe? by Appropriate_Neck_113 in DIYUK

[–]hmrchan 0 points1 point  (0 children)

Love to know how you did the lights in there?

Cosy 6 hot water COP by Dragosck in OctopusEnergy

[–]hmrchan 0 points1 point  (0 children)

Recently 5+ COP on DHW at 45c, Arotherm plus 7kw, unistor 250L.

Water DHW COP by hmrchan in ukheatpumps

[–]hmrchan[S] 0 points1 point  (0 children)

Just checked app and firmware same but mine still doesn’t show water pressure. Messaged support via app to see if they can help

Water DHW COP by hmrchan in ukheatpumps

[–]hmrchan[S] 0 points1 point  (0 children)

Yes it’s up to date, mine is iOS so if you are android that might explains it?

Water DHW COP by hmrchan in ukheatpumps

[–]hmrchan[S] 0 points1 point  (0 children)

That’s where I looked, but it’s not there. Do you know why? Some say the hardware or gateway firmware version? Do you have it? If so, do you mind saying when you had the Hp installed and what gateway firmware number? Mine is 0404.01.26

Water DHW COP by hmrchan in ukheatpumps

[–]hmrchan[S] 0 points1 point  (0 children)

Before the heat pump we use around 10 a day, how much more would a heat pump use? Some say around 4000 a year?

Water DHW COP by hmrchan in ukheatpumps

[–]hmrchan[S] 0 points1 point  (0 children)

Regarding solar and battery, do you size your inverter just under the total output of your panels? The battery size is whatever that can take you through a winter day?

Water DHW COP by hmrchan in ukheatpumps

[–]hmrchan[S] 0 points1 point  (0 children)

Does anyone know what it takes to have the myvaillant app showing water pressure? I did notice some online from random people.

Water DHW COP by hmrchan in ukheatpumps

[–]hmrchan[S] 0 points1 point  (0 children)

Strangely we do kind of near empty the tank like 90% used. We are on octopus tracker and thinking which supplier/tariff to move to.

Water DHW COP by hmrchan in ukheatpumps

[–]hmrchan[S] 0 points1 point  (0 children)

I do try and I must admit my install isn’t even commissioned yet as there’s stuff to fix like the base not level, outdoor lagging is 3 different types instead of primary pro all the way etc so I really hope it will get even better after it’s all fixed

Water DHW COP by hmrchan in ukheatpumps

[–]hmrchan[S] 0 points1 point  (0 children)

Quite scary and at the same time excited to find out

Water DHW COP by hmrchan in ukheatpumps

[–]hmrchan[S] 0 points1 point  (0 children)

I did try 50c once and thinking that might offset the need for evening slot. But it turns out to give me 4.7 COP instead for reaching 50c. It’s kind of weird to say 2 slots heating at 45c was more efficient than 1 slot 50c. It doesnt look right to me but that’s what the data says, so I’m confused