Mike Hoxbig
Honorary Master
What's the temperatures on the Solarman app?
AC = inverter and DC = batteries?
AC = inverter and DC = batteries?
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Is this a 5kW without the fan?Well this might be problem:
View attachment 1394495
View attachment 1394497
Will start running a fan pointed at the inverter tomorrow.
Pointing a big fan at batteries also works well, keeps them at ambient temperature.Well this might be problem:
View attachment 1394495
View attachment 1394497
Will start running a fan pointed at the inverter tomorrow.

YepIs this a 5kW without the fan?
Yeah doing that now.Pointing a big fan at batteries also works well, keeps them at ambient temperature.
That is impressiveSo the fan is doing wonders View attachment 1394549
DC will be the DC bus in the inverter while AC will be the AC bus in the inverter.What's the temperatures on the Solarman app?
AC = inverter and DC = batteries?
Yeah, you can see how often the fan comes on on the 8kW on a nice sunny day:So the fan is doing wonders View attachment 1394549



What about putting some of those twirly whirly roof chimney thingies?Yesterday's stats - I parked the cars in the garage about half an hour later around 5:45 pm and then closed the garage door.
Went in about 15 mins later and you could still feel the extra heat in that room.
Super pissed at the Shelly DW2 sensor I had placed to monitor temps. That particular one just eats through batteries every 2-3 weeks. Paying R140 for batteries is not on. Have given up on them. Of the 5 I bought, only one works reliably. View attachment 1394779
Super pissed at the Shelly DW2 sensor I had placed to monitor temps. That particular one just eats through batteries every 2-3 weeks. Paying R140 for batteries is not on. Have given up on them.
Wifi isn't meant be used in battery powered IoT devices. You should have a look at Zigbee or Z-Wave. Or just wait for matter/thread to drop later this year.
Zigbee and z-wave allows the antena to be turn off and actually save power when not sending updates. I'm getting around 3months out of my Zigbee temps sensors (they are using rechargeable AAA batteries).
My mutli sensor zigbee (Lux, movement, temp, humidity) one is on around 8 months now and still going strong, but it uses a weird CR battery.
Definitely won't work for me - cos the solar panels are thereWhat about putting some of those twirly whirly roof chimney thingies?
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It's hot in there because it's insulated and keeping the heat in from all the heat sources (inverter, geyser, cars). Might be a plan to put a small aircon in there, or some kind of extractor fan.Definitely won't work for me - cos the solar panels are there
The garage roof space is well insulated - 135mm pink aerolite, etc. The garage has always been hot (we don't know why - there is a geyser in there but it's only turned on for 1-2 hours a day to feed the kitchen) - considering how cold our house was before we put the insulation in - we were thinking of converting the garage to a bedroom becuase it was so lekker warm all the time -LOL
I use these 3:I learnt that after I bought the Shelley's ... my first experience with their products and seriously let down by this particular model. The battery's were supposed to last two years, but in this specific DW2, it eats them up in 2 weeks - and it's close to WiFi.
Can you provide a link to the zigbee one that you use? May get one just to monitor the garage (and then go deep down the zigbee hole but I think all my Philips hue lights run on it)
isphome.co.za
Indeed. What I want to see if what folks like @ItherNiT have done with their temp fan solution. I can't use them (unless I wall mount one) but since we need to walk past our inverter to get into house, it's a bit tight there.It's hot in there because it's insulated and keeping the heat in from all the heat sources (inverter, geyser, cars). Might be a plan to put a small aircon in there, or some kind of extractor fan.
wow! Some interesting kit out there if you go look for it! Will try to find something without a digital face or else .. my wife will have something to complain about #DataNutI use these 3:
But you will need a zigbee co-ordinator for home assistant, I can highly recommend the sonoff one:
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Sonoff Zigbee 3.0 USB Dongle Plus v2 (ZBDongle-E) - ISP Home
The Sonoff Dongle Plus v2 aka ZBDongle-E is ideal for Home Assistant, OpenHAB and Zigbee2MQTT. It is a universal Zigbee USB stick and can be used as a Zigbee gateway on open-source platforms to locally control all your Zigbee devices.isphome.co.za
I know a few people on the forum use the sonoff temp sensor as well, but I'm not sure how the battery life stacks up. It will also probably last longer as it doesn't have a screen that it needs to update.