Smart Home JunkieEnergy monitoring in Home Assistant - Here's how to start today!
Link in the comments 👇
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Alterego_MidshipmanHeat Recovery Ventilator (HRV) — Operating Principle
A recuperator (heat recovery unit) transfers heat from exhaust air to incoming fresh air without mixing the two streams.
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How It Works
Two airflows:
Exhaust air (warm, from indoors)
Supply air (cold, from outside)
They pass through a heat exchanger:
separated by plates or channels
no direct mixing
heat transfers through the material (conduction)
Result: → supply air is preheated
→ exhaust air is cooled
→ overall heat loss is reduced
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Types of Recuperators
1. Plate Heat Exchanger
aluminum or plastic plates
efficiency: ~60–90%
no moving parts
2. Rotary (Wheel) Heat Exchanger
rotating drum
transfers heat and some moisture
efficiency: up to ~85–90%
3. Counterflow Heat Exchanger
air streams move in opposite directions
highest efficiency: up to ~95%
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What Is Transferred
heat (primary)
sometimes moisture (in enthalpy units)
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Efficiency Example
outside: 0°C
indoor: +22°C
after recovery: ~16–20°C
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Advantages
reduced heating energy demand
continuous ventilation without major heat loss
improved indoor air quality
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Limitations
frost formation in winter (needs bypass or preheater)
filter maintenance required
upfront cost
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Core Idea
A recuperator doesn’t generate heat — it recovers and reuses it.
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⚡ VFD source factory | 15-50% energy saving | ±0.1% accuracy
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⚡ VFD source factory | 15-50% energy saving | ±0.1% accuracy
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📲 WhatsApp +8613589883599
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Latest frequency converter news 🚀 Local brands surging 📊 Price up 5-10% effective Apr 27 💰 Smart energy-saving standard ⚙️
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MD TOUFIQ HASSAN SHAWONLearn the exact AC maintenance schedule that prevents compressor failure, reduces electricity bills, and extends your unit's lifespan.
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🏭Wenzhou Manhua Electrical Co., Ltd.
– VFD for export equipment
✅ 0.75-630kW · <100ms
✅ ≥96% eff · save 30-50%
✅ 50,000h · multi-protocol
💰 40-60% cheaper than imports
📲 WhatsApp：+8613588983599
🌐 www.manhua-electric.com
#VFD #EnergySaving
– VFD for export equipment
✅ 0.75-630kW · <100ms
✅ ≥96% eff · save 30-50%
✅ 50,000h · multi-protocol
💰 40-60% cheaper than imports
📲 WhatsApp：+8613588983599
🌐 www.manhua-electric.com
#VFD #EnergySaving
AC isn’t the only culprit: What’s really increasing your summer electricity bill https://english.mathrubhumi.com/lifestyle/home-and-decor/hidden-appliances-summer-electricity-bill-ac-fridge-fan-energy-usage-tips-fsffdevr?utm_source=dlvr.it&utm_medium=mastodon #ElectricityBill #SummerHeat #EnergySaving #HomeAppliances #ACTips
EcoTechNews.worldDual-layer solar panels boost efficiency by up to 30%. Panasonic's self-cleaning nanocoating and bifacial panels increase output by up to 20% in snowy regions. It's a logistical win for cloudy days and northern climates. Which innovation will have the most impact? #SolarEnergy #EnergySaving #GreenTechnology
Solar🌄GardenJust doing it, so mentioning it here.
" #hayboxCooking " is a brilliant way to save energy and burnt suppers, when you're #multitasking
You need NEITHER a BOX nor HAY. Nor is it a "fuss" -- no time for fuss! A foam block to stand pan on makes a good firm insulating base. Tuck the pan in well with kitchen or other towels.
Starchy stuff like rice, pasta lends itself well, as there's no heat x time degradable nutrients in it, if you don't mix with finer things at this stage.
Solar PV elec for a kettle, pour over item, bring-up to boil if nec., cover. Forget. Till hungry. You get back to it, it's either ready to eat or needs short boost. More of the former when you get used to it.
Not going to be further detailed: you'll tune it to your needs. Reply if problems.