#hvac — Public Fediverse posts
Live and recent posts from across the Fediverse tagged #hvac, aggregated by home.social.
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apparently the company/product that lost me as an HVAC customer is called Avoca: https://www.avoca.ai/customers/apex-service-partners
here's a demo of this pile of shit: https://www.avoca.ai/inbound
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Called my (soon to be former) HVAC vendor[1] and the call was answered by an AI human voice… that did not disclose it was an AI.
It pretended to be human. After 2-3 exchanges (as awkward as you'd expect), I asked.
I'm not sure I've ever been more ready to run away from a vendor. I escalated to a real person, who was thrilled to pass along my feedback.
1: BelRed Heating/Gene Johnson, which is one of many trade names of Apex Service Partners. fuck them.
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Швейцарский нож Инженера АСУ ТП: Ищем, подслушиваем, настраиваем и шьём по Modbus одной утилитой
При проведении пуско-наладочных работ на объекте Инженерам часто приходится иметь дело с "солянкой" различного оборудования на линиях RS-485, передающих данные по Modbus RTU на "средний", или "верхний" (в BMS\SCADA) уровни. Написали программу, которая умеет искать Modbus RTU устройства по COM-порту, а так же через преобразователи интерфейсов с протоколами Modbus RTU over TCP и Modbus TCP. Прописали IP адрес и порт шлюза, выбрали протокол и готово.
https://habr.com/ru/articles/1037242/
#асутп #scada #modbus #scanner #hvac #овик #инженерия #пнр #утилиты #wirenboard
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🧑🌾 Oventrop makes Vertical Farming more energy-efficient
https://arnenielsen.com/2026/05/18/oventrop-makes-vertical-farming-more-energy-efficient/
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Engle Services marks 25 years serving Central Alabama with honest HVAC, plumbing & electrical expertise. One contractor. Three trades. Proven results. #HVAC #LocalBusiness
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Engle Services marks 25 years serving Central Alabama with honest HVAC, plumbing & electrical expertise. One contractor. Three trades. Proven results. #HVAC #LocalBusiness
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Engle Services marks 25 years serving Central Alabama with honest HVAC, plumbing & electrical expertise. One contractor. Three trades. Proven results. #HVAC #LocalBusiness
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Tailored Mechanical officially rebrands as Plunkett Home Services in Tucson, putting the family name behind every HVAC job. Same trusted expertise, new identity. #HVAC #LocalBusiness
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Tailored Mechanical officially rebrands as Plunkett Home Services in Tucson, putting the family name behind every HVAC job. Same trusted expertise, new identity. #HVAC #LocalBusiness
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Tailored Mechanical officially rebrands as Plunkett Home Services in Tucson, putting the family name behind every HVAC job. Same trusted expertise, new identity. #HVAC #LocalBusiness
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Carl's Quality Cooling and Heating celebrates 20 years of veteran-owned HVAC excellence in Conroe, TX. From one truck to 40 employees—built on integrity, word-of-mouth, and community care. #FamilyBusiness #HVAC
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Carl's Quality Cooling and Heating celebrates 20 years of veteran-owned HVAC excellence in Conroe, TX. From one truck to 40 employees—built on integrity, word-of-mouth, and community care. #FamilyBusiness #HVAC
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Carl's Quality Cooling and Heating celebrates 20 years of veteran-owned HVAC excellence in Conroe, TX. From one truck to 40 employees—built on integrity, word-of-mouth, and community care. #FamilyBusiness #HVAC
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Alabama homeowners: New guide covers A/C installation, heat pump options, energy efficiency standards, and maintenance tips for beating summer heat. #HVAC #HomeownerTips
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Alabama homeowners: New guide covers A/C installation, heat pump options, energy efficiency standards, and maintenance tips for beating summer heat. #HVAC #HomeownerTips
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Alabama homeowners: New guide covers A/C installation, heat pump options, energy efficiency standards, and maintenance tips for beating summer heat. #HVAC #HomeownerTips
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Preventive HVAC maintenance cuts emergency A/C repair calls by 40% in Alabama. Scheduled tune-ups catch small problems before costly failures occur. Protect your cooling investment. #HVAC #Maintenance
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Preventive HVAC maintenance cuts emergency A/C repair calls by 40% in Alabama. Scheduled tune-ups catch small problems before costly failures occur. Protect your cooling investment. #HVAC #Maintenance
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Preventive HVAC maintenance cuts emergency A/C repair calls by 40% in Alabama. Scheduled tune-ups catch small problems before costly failures occur. Protect your cooling investment. #HVAC #Maintenance
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Birmingham homeowners: proper A/C sizing, SEER ratings, and professional installation directly impact comfort and energy costs. Heat pumps offer efficient heating and cooling for Alabama's climate. #HVAC #HomeImprovement
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Birmingham homeowners: proper A/C sizing, SEER ratings, and professional installation directly impact comfort and energy costs. Heat pumps offer efficient heating and cooling for Alabama's climate. #HVAC #HomeImprovement
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Birmingham homeowners: proper A/C sizing, SEER ratings, and professional installation directly impact comfort and energy costs. Heat pumps offer efficient heating and cooling for Alabama's climate. #HVAC #HomeImprovement
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Family-owned Engle Services expands HVAC, plumbing, and electrical services across 20+ Central Alabama communities with 43 technicians and 24/7 emergency support. #HVAC #HomeServices
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Family-owned Engle Services expands HVAC, plumbing, and electrical services across 20+ Central Alabama communities with 43 technicians and 24/7 emergency support. #HVAC #HomeServices
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Family-owned Engle Services expands HVAC, plumbing, and electrical services across 20+ Central Alabama communities with 43 technicians and 24/7 emergency support. #HVAC #HomeServices
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Alabama contractor expands HVAC, plumbing, and electrical services to 22 cities with 43 licensed technicians and 24/7 emergency response. Heat pump and A/C installation now available statewide. #HVAC #HomeServices
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Alabama contractor expands HVAC, plumbing, and electrical services to 22 cities with 43 licensed technicians and 24/7 emergency response. Heat pump and A/C installation now available statewide. #HVAC #HomeServices
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Alabama contractor expands HVAC, plumbing, and electrical services to 22 cities with 43 licensed technicians and 24/7 emergency response. Heat pump and A/C installation now available statewide. #HVAC #HomeServices
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Thats nearly summer 🌞
Got stuck on developing Revit drawings
All things engineering #revit2023 #hvac
#buildings #valves #wastewater #watersupply -
Thats nearly summer 🌞
Got stuck on developing Revit drawings
All things engineering #revit2023 #hvac
#buildings #valves #wastewater #watersupply -
Thats nearly summer 🌞
Got stuck on developing Revit drawings
All things engineering #revit2023 #hvac
#buildings #valves #wastewater #watersupply -
Thats nearly summer 🌞
Got stuck on developing Revit drawings
All things engineering #revit2023 #hvac
#buildings #valves #wastewater #watersupply -
Thats nearly summer 🌞
Got stuck on developing Revit drawings
All things engineering #revit2023 #hvac
#buildings #valves #wastewater #watersupply -
↙️I'm glad that #MIT startup #transaera found a secret sauce for HVAC dehumidification: coupling a new solid desiccant with heat pumps!
↘️I worked on reducing solid and liquid desiccant #HVAC costs back in the 1990s; see "Reduced-Cost, Desiccant-Based DHC Systems"
DOI: 10.13140/RG.2.2.12617.57449
#Energy #TENs #heatpumps -
↙️I'm glad that #MIT startup #transaera found a secret sauce for HVAC dehumidification: coupling a new solid desiccant with heat pumps!
↘️I worked on reducing solid and liquid desiccant #HVAC costs back in the 1990s; see "Reduced-Cost, Desiccant-Based DHC Systems"
DOI: 10.13140/RG.2.2.12617.57449
#Energy #TENs #heatpumps -
↙️I'm glad that #MIT startup #transaera found a secret sauce for HVAC dehumidification: coupling a new solid desiccant with heat pumps!
↘️I worked on reducing solid and liquid desiccant #HVAC costs back in the 1990s; see "Reduced-Cost, Desiccant-Based DHC Systems"
DOI: 10.13140/RG.2.2.12617.57449
#Energy #TENs #heatpumps -
↙️I'm glad that #MIT startup #transaera found a secret sauce for HVAC dehumidification: coupling a new solid desiccant with heat pumps!
↘️I worked on reducing solid and liquid desiccant #HVAC costs back in the 1990s; see "Reduced-Cost, Desiccant-Based DHC Systems"
DOI: 10.13140/RG.2.2.12617.57449
#Energy #TENs #heatpumps -
↙️I'm glad that #MIT startup #transaera found a secret sauce for HVAC dehumidification: coupling a new solid desiccant with heat pumps!
↘️I worked on reducing solid and liquid desiccant #HVAC costs back in the 1990s; see "Reduced-Cost, Desiccant-Based DHC Systems"
DOI: 10.13140/RG.2.2.12617.57449
#Energy #TENs #heatpumps -
https://www.europesays.com/dk/79962/ Johnson Controls expands European footprint with opening of new engineering, production and customer centres in Denmark #Computer&Electronics #Construction&Building #Consumer&Cosmetics #CorporateExpansion #Danmark #Denmark #EnvironmentalProducts&Services #Household #HVAC(Heating #JohnsonControlsInternationalPlc #Machinery #Mining&Metals #VentilationAndAirConditioning)
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It turns out that one of the players in my first playtest for the sci-fi HVAC repair TTRPG module I'm working on actually has seven years of professional HVAC experience! What a fantastic coincidence!
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Your phone rings. You're 20 feet under a house fixing pipes. By the time you crawl out, that caller already hired the next plumber on Google—$350 gone. Atlas UX answers every call, books the job, texts the client, pings your Slack. Never lose another dime. (573) 742-2028 atlasux.cloud #Plumbers #HVAC #TradeBusiness
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Heat 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---
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%
---
What Is Transferred
heat (primary)
sometimes moisture (in enthalpy units)
---
Efficiency Example
outside: 0°C
indoor: +22°C
after recovery: ~16–20°C
---
Advantages
reduced heating energy demand
continuous ventilation without major heat loss
improved indoor air quality
---
Limitations
frost formation in winter (needs bypass or preheater)
filter maintenance required
upfront cost
---
Core Idea
A recuperator doesn’t generate heat — it recovers and reuses it.
#HVAC #HeatRecovery #HRV #ERV #EnergyEfficiency #Ventilation #IndoorAirQuality #AirExchange #HeatExchanger #SustainableLiving #GreenBuilding #EnergySaving #HomeComfort #SmartHome #BuildingEngineering #ClimateControl #EcoTech #Airflow #FreshAir #LowEnergy #PassiveHouse #NetZero #HomeImprovement #Engineering #CleanAir
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Heat Recovery Ventilator (HRV) — Operating Principle
A recuperator (heat recovery unit) transfers heat from exhaust air to incoming fresh air without mixing the two streams.
---
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---
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%
---
What Is Transferred
heat (primary)
sometimes moisture (in enthalpy units)
---
Efficiency Example
outside: 0°C
indoor: +22°C
after recovery: ~16–20°C
---
Advantages
reduced heating energy demand
continuous ventilation without major heat loss
improved indoor air quality
---
Limitations
frost formation in winter (needs bypass or preheater)
filter maintenance required
upfront cost
---
Core Idea
A recuperator doesn’t generate heat — it recovers and reuses it.
#HVAC #HeatRecovery #HRV #ERV #EnergyEfficiency #Ventilation #IndoorAirQuality #AirExchange #HeatExchanger #SustainableLiving #GreenBuilding #EnergySaving #HomeComfort #SmartHome #BuildingEngineering #ClimateControl #EcoTech #Airflow #FreshAir #LowEnergy #PassiveHouse #NetZero #HomeImprovement #Engineering #CleanAir
-
Heat Recovery Ventilator (HRV) — Operating Principle
A recuperator (heat recovery unit) transfers heat from exhaust air to incoming fresh air without mixing the two streams.
---
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---
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%
---
What Is Transferred
heat (primary)
sometimes moisture (in enthalpy units)
---
Efficiency Example
outside: 0°C
indoor: +22°C
after recovery: ~16–20°C
---
Advantages
reduced heating energy demand
continuous ventilation without major heat loss
improved indoor air quality
---
Limitations
frost formation in winter (needs bypass or preheater)
filter maintenance required
upfront cost
---
Core Idea
A recuperator doesn’t generate heat — it recovers and reuses it.
#HVAC #HeatRecovery #HRV #ERV #EnergyEfficiency #Ventilation #IndoorAirQuality #AirExchange #HeatExchanger #SustainableLiving #GreenBuilding #EnergySaving #HomeComfort #SmartHome #BuildingEngineering #ClimateControl #EcoTech #Airflow #FreshAir #LowEnergy #PassiveHouse #NetZero #HomeImprovement #Engineering #CleanAir
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Your phone rings while you're elbow-deep in someone's drain. Miss it = $300 job gone. 85% call your competitor next.
Atlas UX answers every call, books the job, sends confirmation texts. You keep working, we keep the money flowing.
(573) 742-2028 or atlasux.cloud
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#askfedi #indoorenvironment #hvac #dust #allergen #filtration
We’re discovering our passion for open doors and windows is brining in a LOT of dust. We can skate on the tile floors because of it.
Rather than close up and go on AC, I’m thinking of making/buying air filters for the windows. Let’s assume full-width, but only about 6” tall. Just basic furnace filter material, MERV 8 or so.
Is this a workable solution?
But wait, there’s more…