Storage Heaters

[Joeboy]

Went downstairs to make a cuppa this morning and the whole space was at 21 degs. Felt utterly decadent. I may have to.knock an hour off here and there on the SH charging window if this upward trend continues!

With the strong generation at WT1 yesterday we ran the house completely (73kWh) off wind and made 92p on top of that.

I am also seeing a fallback in power consumption over the last 5 days, I am hoping its the residual heat building up in the SH's over the 24hr cycle cutting them off earlier. We can but hope!

[Oldgreybeard]

Went downstairs to make a cuppa this morning and the whole space was at 21 degs. Felt utterly decadent.

Photo of our hall thermostat a few moments ago, still no heating on yet, the bit of sunshine the day before yesterday was enough to push the house back to just over 22°C again (heating comes on if it drops to 21.5°C overnight, 21.0°C during the day). Mostly the lack of heating is down to the very mild weather, still sitting at 14°C outside here, even after the high winds and storm we had last night. Good advert for the benefits of a passive house, though, being able to keep the house this warm without any heating so far.

Thermostat.jpg (32.32 KiB) Viewed 1450 times

[Joeboy]

Went downstairs to make a cuppa this morning and the whole space was at 21 degs. Felt utterly decadent.

Photo of our hall thermostat a few moments ago, still no heating on yet, the bit of sunshine the day before yesterday was enough to push the house back to just over 22°C again (heating comes on if it drops to 21.5°C overnight, 21.0°C during the day). Mostly the lack of heating is down to the very mild weather, still sitting at 14°C outside here, even after the high winds and storm we had last night. Good advert for the benefits of a passive house, though, being able to keep the house this warm without any heating so far.


Thermostat.jpg

That is great to see, swmbo & I speak about building a passivhaus. I am on the half kind of lookout for a bit of ground in Aberdeenshire but not seriously. If a perfect plot came on I'd get into it. We have 1kW+ incoming, solar gain and the WBS is off. Away to chop up a load of beech awkward sections then split to logs.

[Joeboy]

0 degrees and freezing fog this morning. SH are doing well. 18.6 degs downstairs and 17.2 deg upstairs. I have set all storage heaters to max charge window this fine brisk morning until this cold spell breaks (April).

[Stinsy]

Went downstairs to make a cuppa this morning and the whole space was at 21 degs. Felt utterly decadent.

Photo of our hall thermostat a few moments ago, still no heating on yet, the bit of sunshine the day before yesterday was enough to push the house back to just over 22°C again (heating comes on if it drops to 21.5°C overnight, 21.0°C during the day). Mostly the lack of heating is down to the very mild weather, still sitting at 14°C outside here, even after the high winds and storm we had last night. Good advert for the benefits of a passive house, though, being able to keep the house this warm without any heating so far.


Thermostat.jpg

That is great to see, swmbo & I speak about building a passivhaus. I am on the half kind of lookout for a bit of ground in Aberdeenshire but not seriously. If a perfect plot came on I'd get into it. We have 1kW+ incoming, solar gain and the WBS is off. Away to chop up a load of beech awkward sections then split to logs.

I too dream about building my own house! Lots of “passivehaus” I see have c. 2kWp of solar whereas I’d go for 8-12kWp on a roof designed specifically to be big enough and correctly aligned. We were watching an old episode of “Grand Designs” the other day and SWMBO remarked that “they haven’t put many solar panels on that roof” regarding the off-grid eco house on that episode. Panels are now so cheap that the sums add up so much easier than they did 10-20 years ago.

[Joeboy]

Oh I wish for those temperatures. The guys have rocked up for the ceiling repair, they say it's minus 3 and certainly I've just gritted the front path.

I have planted the seed in SWMBO's head, we'll see how it goes.

[Oldgreybeard]

I too dream about building my own house! Lots of “passivehaus” I see have c. 2kWp of solar whereas I’d go for 8-12kWp on a roof designed specifically to be big enough and correctly aligned. We were watching an old episode of “Grand Designs” the other day and SWMBO remarked that “they haven’t put many solar panels on that roof” regarding the off-grid eco house on that episode. Panels are now so cheap that the sums add up so much easier than they did 10-20 years ago.

When I built this place I fitted as many panels on the almost south facing roof as would fit. There's only a slim band of slate along the sides and along the ridge, the rest of the roofing is panels (25 of them). The cost wasn't that high, even back in 2014, as I saved the cost of the slates that would otherwise have been there, plus the cost of the labour to fit the slates. About half the cost of the panels was covered by that saving in roofing cost, plus we had scaffolding up anyway for the roofers, so the payback time came down to about 4 years. With the reduced cost of panels now, plus the improvements in performance, the payback time would most probably be shorter.

[AGT]

Hi Joe,

Quick question on page 14 you pointed out that the heater was off and still outputting 98deg.

I know you run yours on a smart plug, but how do you manage it, is it on all night like an E7 time period or on and off via the smart plug to limit energy consumption?

Interested as my first storage heater arrives this week!
Cheers

[Joeboy]

Hi Joe,

Quick question on page 14 you pointed out that the heater was off and still outputting 98deg.

I know you run yours on a smart plug, but how do you manage it, is it on all night like an E7 time period or on and off via the smart plug to limit energy consumption?

Interested as my first storage heater arrives this week!
Cheers

Hi AGT, congratulations on the new SH! We charge them up using the Octopus Go window. If we have excess solar in the shoulder months I will manually bring on a 850W heater via a hive plug. In general though it's fixed charging through the night.
What type and size of SH did you go for?

[nowty]

@AGT, do you know the kWh capacity of the arriving storage heater ?, or even the power input in watts.
I'm collecting info on members energy storage capacity now and we are now over 3MWh's.

Same request goes for others on here.