ASHP & triple glazing

[Fintray]

Good slots tonight pal.
£3.78 run through ashp in the last 24hrs. Clean, clean, clean.
133kWh of heat for that cash. -6 the noo.

Just plugged in the car and got a slot from 19:55 so batteries now getting a 10.7kW charge.

[Joeboy]

Good slots tonight pal.
£3.78 run through ashp in the last 24hrs. Clean, clean, clean.
133kWh of heat for that cash. -6 the noo.

Just plugged in the car and got a slot from 19:55 so batteries now getting a 10.7kW charge.

Woohoo!

[NoraBatty]

I said i would take some readings when it was colder to show the difference between insulated and uninsulated suspended floor Joeboy.
This morning walking on the uninsulated bits with bare feet was "ooh thats bloomin cold" and insulated sections were "ooh thats much warmer"

So to contextualise we have suspended 1inch thick pine floorboards, then a foil backed underlay, then laminate. So heat is spread out a little by the foil underlay.
I started insulating the underfloor with 90mm PIR friction fit between joists with gapotape and had to stop in june for the remedial work.

But,

This is the uninsulated section 13C



This is the junction between insulated and uninsulated, insulated 15.7C. You can see how well the foil underlay distributes the heat as it slowly gets darker the further away from the insulated area.
The very dark blue area is that cloakroom door pooling cold air onto the hallway.



And just for fun..ghosts.

[Joeboy]

Yep, that couple of degrees make a huge difference. There will be specific terms I'm sure but suck, neutral, give are how I think of heat. Liking the footprints in time.

[Joeboy]

Minus 5 again overnight. Also found this morning that I'd hamstrung myself by leaving the setback temp at 19.5 degs. I wanted the house to go higher overnight in the cheap period to give the stack an easier start.

Yesterday's hive graph and today's so far in midhall. Looking better and a higher start to the day. We'll see what tomorrow brings.



Expanded & 0.4 setback 19.5 senso in front lounge


Active & 0.6 setback 19.5 senso in midhall


I put it all down to finger trouble by myself.

Plenty defrost cycles but still maintains a 6 hr cop of 2.5 and minus 5 outdoors. That I am happy with.



24hr

[Sim_C]

There was a recent blog describing the Vaillant SensoComfort operating modes (inactive/active/expanded).

In Active mode the author found the room influence was not aggressive enough, but that will be affected by the location of the SensoComfort and any external influences such as solar gain.

https://energy-stats.uk/sensocomfort-ro ... -expanded/

https://energy-stats.uk/vaillant-arothe ... formation/

A basic summary of the three options would be

Inactive = Pure Weather Compensation (WC) mode. Flow temperature is chosen based on outside temperature and indoor target temperature as per the WC curve setting. The SensoCOMFORT room stat is therefore nothing but a display.
Active = Weather Compensation, same as Inactive, but with added Room Influence. Room influence means that depending how far away the current room temperature is from indoor target temperature the system can adjust the flow temperature, i.e. increase flow temperature if the room needs a little more heat or drop the flow temperature if the room is over target.
Expanded = Uses both WC and Room influence from Active, but also acts as on/off stat, switching the heating off if room temp is exceeded.
Note: To use Active or Expanded modes successfully you need to have your SensoCOMFORT controller placed in a sensible location, like a habitable room.

[Joeboy]

There was a recent blog describing the Vaillant SensoComfort operating modes (inactive/active/expanded).

In Active mode the author found the room influence was not aggressive enough, but that will be affected by the location of the SensoComfort and any external influences such as solar gain.

https://energy-stats.uk/sensocomfort-ro ... -expanded/

https://energy-stats.uk/vaillant-arothe ... formation/

A basic summary of the three options would be

Inactive = Pure Weather Compensation (WC) mode. Flow temperature is chosen based on outside temperature and indoor target temperature as per the WC curve setting. The SensoCOMFORT room stat is therefore nothing but a display.
Active = Weather Compensation, same as Inactive, but with added Room Influence. Room influence means that depending how far away the current room temperature is from indoor target temperature the system can adjust the flow temperature, i.e. increase flow temperature if the room needs a little more heat or drop the flow temperature if the room is over target.
Expanded = Uses both WC and Room influence from Active, but also acts as on/off stat, switching the heating off if room temp is exceeded.
Note: To use Active or Expanded modes successfully you need to have your SensoCOMFORT controller placed in a sensible location, like a habitable room.

Thank you for this. The big lounge is sitting at 17degs this morning. Much better than yesterday's 15.9 and blue owl.


Once we have the glazing changed out to 3g it should make a huge difference. The rest of the house is sitting at 18.3 degs. I have to remember that the heat calc was done with 3g figures. I'm just paying the price while we wait. On the upside I'll be excruciatingly aware of the improvement when 3g lands.

[Richard77]

Does the owl change colour depending on the temperature?

[Andy]

Andy, we both have similar walls by the sound of things. I would be wary of filling the cavity behind plasterboard (lath and plaster in our case) with something that could hold and wick moisture across the gap.
I know what you mean about the timber always seeming to be dry, but the houses were designed to make sure there was adequate airflow to stop damp penetration.

I'm very keen to make sure that I don't disturb the equilibrium. It's a strange one as there is so much air movement behind the plasterboard that I'm not sure the granite adds a huge amount of insulation value. That means that there isn't a huge amount of insulation in the house, but adding any more means reducing the already small room sizes more if I am to maintain any gap.

As for rats.
We have had success in our survey warehouse with goodnature A24 humane traps.
Gas fired piston to the head and the rat or mouse falls out of the way, trap resets for the next to shove their nose up to the bait in the kill zone.

Amazon do some knock offs that are cheaper but the goodnature bait pouches have no alternative that we have found that work as good.
Each gas canister is good for about 24 kills.

I shall look at them. They always start coming in the garage so that is an interesting idea. Not zero cost but then neither was the wall chewed or window frame.

[Andy]

Thank you for this. The big lounge is sitting at 17degs this morning. Much better than yesterday's 15.9 and blue owl.


Once we have the glazing changed out to 3g it should make a huge difference. The rest of the house is sitting at 18.3 degs. I have to remember that the heat calc was done with 3g figures. I'm just paying the price while we wait. On the upside I'll be excruciatingly aware of the improvement when 3g lands.

I presume you are leaving the stove off and suffering in the interest of science.