hl, to hvac
@hl@social.lol avatar

Now I feel like a proper home owner; we had to pay for a heating service at short notice as after a power on and off our boiler didn't come back. The solution was to replace its control board, so /something/ on here is broken. Technician reckoned a relay was the culprit. Don't think I have the energy to try and figure it out, but probably a cheap part that's not too hard to replace. Annoying when it's quicker to just replace the whole thing.

BigAngBlack, to hvac
@BigAngBlack@fosstodon.org avatar

Your HOA is about to get so much worse

Former Nextdoor exec raises $25 million for PipeDreams, a startup rolling up HVAC companies

https://techcrunch.com/2024/03/26/former-nextdoor-exec-raises-25-million-for-pipedreams-a-startup-rolling-up-hvac-companies/

> #PipeDreams acquires and scales mom and pop #HVAC and #plumbing companies in a nod to the traditional PE roll-up strategy

chrisjrn, to hvac
@chrisjrn@social.coop avatar

People who know : is this level of dust on a blower wheel something I should be concerned about, and does it need anything more than blowing some compressed air and then vacuuming?

The other side of the blower, showing not a whole lot of dust inside

docdieterlen, to hvac

Bravo, heat pumps!

Big tax credits for these in Biden's big climate action law, the Inflation Reduction Act and more rolling out. Plus 25 states have their own incentives, so check yours.

No gas leaks, no oil deliveries, and
"magically efficient" - uses just a third or a quarter of the energy

Imagine what that does for your bills - and greenhouse gas emissions 🌳

https://grist.org/energy/heat-pumps-outsold-gas-furnaces-again-last-year-and-the-gap-is-growing/

ai6yr, to design
@ai6yr@m.ai6yr.org avatar

Yale Climate Connections: "The promise of passive house design
The extraordinarily energy-efficient building method slashes climate pollution from homes, hospitals, schools, and high rises. Now it’s catching on in Massachusetts and elsewhere. " https://yaleclimateconnections.org/2024/02/the-promise-of-passive-house-design/

trendless, to hvac

Anyone have experience with / tips for replacing an existing forced air furnace motor with an Azure/Mars Digimotor?

c_9, to hvac

Remember all that awful wildfire smoke? And how it was so bad that you could smell it indoors? Well, the wildfires are coming back. And we need changes to how indoor air is regulated so that we can protect our most vulnerable people from it.

The Ontario Society of Professional Engineers is looking to get the word out about the Clean Indoor Air Act. Click on the link to learn more and reach out to your MPP.

https://ospe.on.ca/advocacy/ontario-society-of-professional-engineers-ospe-calls-for-support-of-clean-indoor-air-act/

ai6yr, to hvac
@ai6yr@m.ai6yr.org avatar

Ah curse 1970's era builders for their lousy HVAC design. You can't really fix these (at least, you can't just fix the existing system). I am pretty sure part of the return air supply in my house is getting pulled in through the garage eave vent. https://basc.pnnl.gov/resource-guides/building-cavities-not-used-supply-or-return-ducts#edit-group-description

ai6yr, to Energy
@ai6yr@m.ai6yr.org avatar

Massive trove of information on proper insulation and energy usage for new homes and retrofit from PNNL (DOE Office of Energy Efficiency and Renewable Energy) here below. #insulation #EnergyEfficiency #energy #weatherization https://basc.pnnl.gov/resource-guides

ai6yr, (edited )
@ai6yr@m.ai6yr.org avatar

Huh, looks like I should be air sealing my heating/air conditioning return while it's open. Maybe I'll add that to the list.... Mine looks like the first photo. (Edit: looks like this is far more complex than I thought, because you have to make sure you are getting enough air back into your system... right now, it's relying on sucking air through the unvented spaces in the walls and outside 🤨 ) https://basc.pnnl.gov/resource-guides/air-handler-closet-retrofit#edit-group-training

nicod, to hvac
@nicod@mstdn.science avatar

Residential engineering question: Is it typical for a household HVAC system in a hot, humid climate (Florida) to be "closed" in the thermodynamic/ volumetric sense? As in, no air exchange with the outside, air is simple recirculated, cooled, heated, and de-humidified as necessary? That is how my household's current system has been described to me, and my CO2 readings corroborate that. But that seems like a major indoor air quality hazard.

cazabon, (edited ) to DaftPunk

Furnace Adventure: The Exciting Conclusion

I wrote about a with a in my . It was an , but the short version is my contractor said it would be a $1500 , as they would need to the control board. I'd replaced a burnt relay, but it hadn't fixed the problem.

Well, after fiddling and prodding, I fixed it, and it perfectly.

I wrote it up in case it helps someone else: https://retrofuturetech.ca/projects/furnace-fix/

ucaccessnow, to hvac
@ucaccessnow@sfba.social avatar

"Indoor air systems crucial to curbing spread of viruses, aerosol researchers say | 60 Minutes"

Ever since the droplet hypothesis was debunked, UC Access Now has pressed UC to update HVAC all over UC.

https://www.youtube.com/watch?v=WxEssOeEsVk

sciencewrighter, to hvac

peeps, thoughts? The contractor I chose (top local, highly regarded) did not tell me about the $1K CA rebate on conversions. (Unlike US tax credit, the CA $$ goes to contractor, not property owner. Ahem.) After receiving their estimate, I asked for the CA $$ and they said "Oh, we thought that was out of funds. We'll ck. By golly you're right & we will take that off yr bill." Work starts Wed. Now I wonder if they're honest. @ai6yr @cremevax @PaulWermer @ev_rider_j @Atlantis

GregCocks, to climate
@GregCocks@techhub.social avatar
D_Perris, to hvac

As a Mechanical Engineer, it is surprisingly satisfying to design a ventilation system that doesn't need any ventilation equipment.

This is part of a natural ventilation system, with weatherproof security louvres backed with automatic Fire and Smoke Dampers.

The louvres allow outside air to come in during the summer to keep the space cool. During the winter the fire dampers are closed to stop too much cold air coming in and causing a condensation problem.

If the fire alarm goes off, the fire dampers automatically shut to stop fire escaping from the building.

Outside view of a brick building with two large grey weather louvres.

stephanie, to hvac
@stephanie@ottawa.place avatar

Finally signed our contract for a ! After changing our plans multiple times, we ended up with a way more reasonable price, with 5 heads total on 3 floors. Work will probably start this week? Excited!

sciencewrighter, to hvac

Studying home -replacement options and incentive$ in . Does anyone truly current (swidt) on initiatives think and rebates on residential upgrades won't be available in 2024? (I am aware of – thx Mastodonians – the up to $2,000 federal tax credits already available for qualified heat pumps.) Boosts appreciated.

stephanie, to hvac
@stephanie@ottawa.place avatar

Had another 1h30 meeting with our people to make sure we had the right plan to be comfortable everywhere in the house, and run everything through (oh retrofits...).

Final plan will be six heads (down from seven) - two upstairs, three on the main floor and one in the basement - with the proper boxes so we can add an additional one upstairs if it's not enough.

We could go with less if we had a more open concept, but old houses were not big on open spaces 😅

johnefrancis, to hvac
@johnefrancis@mastodon.social avatar

Heat pump is pumping heat. Cold air coming out of the outdoor unit.

Not needed yet, just wanted to try it out on a cool morning.

Now trying the system in Aux mode, which should kick-on the natural gas for a bit.

And then maybe run in AC mode this afternoon.

Running it in all the modes before I release funds to the installers.

It's all been tested and warrantied in different ways, but it doesn't hurt to give it a whirl before handing over the cash.

moira, to random
@moira@mastodon.murkworks.net avatar

"fall" mode is new btw

basically means "ignore the windows and open the air-exchange system on a distributed timer for fresh air but not too much fresh air"

homeassistant, to homeassistant
@homeassistant@fosstodon.org avatar

Don’t forget our 10th-anniversary celebration on the 17th! The event starts at 21:00 CEST / 3:00 PM EDT / 12:00 PM PDT

https://youtu.be/EmLV6lJLzSU

wait_sasha,

@homeassistant Happy Anniversary! So glad to see you in Fedi. ❤️🎆🎉

Have been looking forward to (more than) a bit of free time to hook up our various sensors to . So much potential for safer homes.

itnewsbot, to home

Hackaday Prize 2023: AutoDuct Smart Air Duct - Modern building techniques are relying more and more on passive elements to improv... - https://hackaday.com/2023/09/15/hackaday-prize-2023-autoduct-smart-air-duct/

itnewsbot, to HomeAutomation

Heat Pump Control That Works - Heat pumps are taking the world by storm, and for good reason. Not only are they m... - https://hackaday.com/2023/09/04/heat-pump-control-that-works/

jh, to hvac

It makes some sense to me why medical facilities are hesitant to upgrade indoor air quality - though the direct costs of upgrade are quite low, acknowledgment of the problem could lead to spiraling costs, and even liability. This is obviously not OK, but it makes sense.

Could someone explain to me why health insurers, who are presumably way LESS ambivalent about the health costs side of the equation, are not pressuring facilities to improve and reduce the insane levels of nosocomial infection we have due to foot-dragging?

This is actually a serious question - there has to be a reason, or we would already be hearing of this approach for IAQ advocates, etc., right?

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