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#insulation

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I need to cover exposed high-voltage, high current terminals in the glider fuselage.

My index finger and pinky are pointing to the terminals. They will be at +115VDC with respect to ground when the battery pack is connected. The safety fuse is rated at 325 amps. A 'mere' short to ground at 250 amps will keep on smoking, and smoke in the cockpit is scary bad. This is a good reason to fly with a parachute.

The second photo shows a potential solution, which was molded on a discarded paint mixing cup of the right size.

Hmmmm, what do high-voltage high-current terminals look like in an EV auto/truck? Do they have fancy thick boots for insulation?

We didn't get to build that straw house we researched (but who knows), but it's funny how straw is only now being rediscovered as ecological and economical insulation material.

Back when this place was built, people still knew. There's double walls filled with straw to keep animal shelters warm. Decades later, the straw is still there, mostly intact, even though the exterior wall has failed and exposed it.

For small areas like this insulated bee hive, chopped straw was used. This is equivalent to modern blow-in insulation materials, but completely natural. It's also commonly found as ceiling insulation. Straw does not rot well in the absence of nitrogen, so handles being sometimes wet, e.g. from condensation.

Replied in thread

@johannes_lehmann @Ruth_Mottram

My house in Cambridge was built with walls two bricks wide, in a two parallel, one across pattern. No cavity, and no insulation. Had coal-burning fireplaces at every room (unused but leaking cold air) and radiators heated form a gas furnace. Energy rating E.

We added 10 cm of a dense modern material to the walls, mostly wood pulp as far as I know, and changed the windows to double or triple glass panel. And replaced the heating with an air-source heat pump. Energy rating A+.

This should be done for easily more than half of all homes in the UK.
albert.rierol.net/tell/2022100

If, around 1900, all the effort, money, and thought that went into mining and transporting all that coal had gone into building houses with cavity walls and thicker windows, all of this mess would have been averted. Alas, a few fat cats wouldn't have become rich. Tragic. Time for the rich to pay it back.

albert.rierol.netTell (it like it is)
Replied in thread

@Ruth_Mottram

"Homes in England had a median Energy Performance Certificate (EPC) score of 68 and homes in Wales had a median EPC score of 67, according to records from the 10 years up to March 2024; both scores are in band D."

ons.gov.uk/peoplepopulationand

The UK government is so broke, or short-sighted, or both, that it's only considering a policy of bringing houses up to band C:

"This chapter discusses findings on energy efficiency ratings and heating systems and how this differs by tenure. It then goes on to discuss insulation measures in dwellings, smart meters by tenure and subjective overheating, then finishes with the average cost of improving dwellings to an energy efficiency rating band C."

gov.uk/government/statistics/c

Bear in mind that any house with an insulation less than in the A band is going to pay a lot in heating and cooling. A lot. It's like a tax on the poor, or a punishment: to endure cold winters and hot summers.

www.ons.gov.ukEnergy efficiency of housing in England and Wales - Office for National StatisticsInsights on the energy efficiency and central heating main fuel type for new and existing homes by property type, tenure, and property age for national and subnational geographies.

Hey have any of you fine fedifolx had experience of converting original wooden framed sash windows to double glazing? We have an old house with a few bay windows with wooden sash frames. They're nice, but they're cold. I understand there are companies that make double glazed panes for wooden windows, are they super expensive? The alternative is putting perspex or similar over them, but I feel like that will be a temporary measure, and will just mean we'll want to do them properly later on.
#renovation #insulation #DIY #AskFedi

Continued thread

A #WealthTax to support a comprehensive #insulation and #retrofit programme would be very welcome…but I would say that as I work to insulate social housing.

My concern is that any huge sum raised needs to be spent in such a way that it makes real impact on homes and is delivered well and at pace. That requires a skilled, dedicated workforce and less fragmentation and bureaucracy around the finance and process of it.

But that would require a serious look at the class tensions of the industry.

It's a new week and our #mutualaid target is $2000.
I am going to need it for:
#carloan $280
#creditcard bills $50
#tyres for the Vulpibus $1200
#insulation for the Vulpibus (ongoing bit by bit)
#food
#batteries for the #solar power setup $400 min.

There are more things I could list but it depends what pops up and when. Please only donate what you can spare. Lots of love!

#helpfolkslive2025 #trans #furry #otherkin #lgbt #fuckproject2025 #livingexpenses #busconversion #buslife #skoolie #schoolbus #helppeoplelive2025 #helpfolkslive #lgbtqia #financialaid #begpost #pleasehelp #homeless #labonwheels

Paypal @athamanatha
Cashapp $athamanatha
Ko-fi.com/athakitsune
Patreon.com/vulpinedesigns
Wise, ACH, IBAN, Zelle and more accepted, DM for how.

New study out: using wood for insulation rather than fuel (wood pellets) to generate the same heat uses 9 times less wood, releases 21 times less greenhouse gases, and delivers massive health benefits. But it costs more...

#wood #insulation #pellets #heat

fern.org/publications-insight/

www.fern.orgThe Heat is OnA study comparing the use of wood for insultation and fuel Wood is precious, beautiful, and has multiple uses, but not all are equally beneficial, and there ...

As well as occasionally mentioning the benefits of installing better insulation to my neighbours (who have admittedly slowly been improving things over time), I also sometimes share photos which show how our now very well insulated home keeps snow and ice on the roof for much longer than outwardly identical houses in the same street.

There's also a slightly annoying downside to insulation: The snow stays on our solar panels for much longer than those of our neighbours, so we have had no solar electricity for days now and they'll be generating a little bit of electricity to slightly counter their enormous heating bill. Having said that, we're not missing out on much because with this weather there's really not much sunlight falling on the panels anyway...
davidhembrow.blogspot.com/sear
#solar #snow #insulation #winter

Continued thread

In the middle of the night, I thought up a technique for the problem of inserting short fibreglass #insulation batts into a wall cavity containing many protruding nail tips.

Trying to stuff a batt in there just shreds and clumps it up, making it useless and a mess.

With two wide cedar shims you can make a fibreglass sandwich. The whole thing gets pushed deep into the cavity, then each shim pulled out leaving the fibreglass in place.

Success! An easy sol'n for the problem.

I did something to amuse myself last night. I decided to post this story about how bad the situation is in the UK in terms of our cold, drafty homes that leave people in debt trying to heat them…to LinkedIn.

Most of my connections on there are people working in the #retrofit industry. People who profess to care about #insulation and improving the energy efficiency of homes.

Tumbleweed.

uk.news.yahoo.com/heating-uk-h?

Yahoo News · Why are UK homes so rubbish at staying warm? We asked the expertsBy Jasmine Andersson
Continued thread

Here's #WhatBidenDid to help low- and moderate-income households who want to install a #HeatPump in their house or upgrade its #insulation, but need help with the upfront cost:

In participating states, you can get up to 100% (up to $14,000) toward the cost of electrification, efficiency upgrades, or EnergyStar appliances.

Find out if your state participates; if not, ask your state reps to push for participation.

cnbc.com/2024/04/22/inflation-

Thanks to @croselund for the alert!

Continued thread

"The "#AmericanDream" is a very painful dream."

Returning to #Mexico with $55 after decades in the #UnitedStates, #OmarVazquez started his own successful #plant #business and soon expanded into a more personal pursuit of using the massive amounts of #sargassum washing ashore to make #bricks.

These blooms are likely caused by #ClimateChange, and this business may soon be another Everything, Everywhere, All at Once option for #sustainable #HomeBuilding.
#insulation #link: youtu.be/2fXiboAGQvM?si=jbeEvA