It looks like the coil connections show these burning/heat traces, that should not be as bad as when the conducting contacts look like that (when like this relay the pole/throw contact is rated at 30A@230V). That can happen when the coil gets too much voltage and the insulation between the coil wires burns out, hence reducing resistance and overheating until it's no more a coil but only a short with thin wires.
Though the negative side is, that power probably comes from a controller somewhere that decides when to power the furnace/heating element. It could well be that the controller itself setting those relays is damaged as well.

I assume your fuse blew from the incident when the relay burnt out like that, otherwise I would probably try to consult a professional electrician, if you just replace the relays then, things could go wrong in a much more bad way the second time, because burning wires in walls can really ruin your whole day.

Ofcourse thicker wires are always a good idea, though generally if the wiring is not too old and the fuse blew when the relay burnt out, the wiring should have enough spare capacity to not get damaged in any way. I agree with MoA here, if the wiring is not pre WWWII and the electrician who installed it is not a criminal twat and the fuse actually blew then there is no reason at all to be concerned about the wiring (at least not more than any other day).

And yeah, if you are not feeling confident changing the relays and switching the thing back on (meaning having an explanation on what went wrong in the first place), get the help of an electrician. With 230V or higher you often get only one single time to fuck things seriously up,
If you decide to go ahead anyway, do not just switch off the fuse that you think powers the furnace, measure that things have no more voltage before sticking your fingers in it. I mean it, a wrongly labelled fuse can kill you if you don't check. (i.e. Don't trust, verify!)

I have found in my life that I am pretty good in tolerating electric shocks but I got plenty of lucky occasions where some godness decided to warn me with flying sparks that I am about to touch a deadly powered contact, wire or whatever.

Be careful and good luck!

... that looks like you've had a quite substantial power surge or some other over-current situation and close to a fire even, it's quite likely fuses will be blown and other electrical bits might be blown/melted also

... you need an electrician to check the wiring if you're not confident doing electrical work, you don't need a plumber

... it's odd that it has been working fine since 1990 to get such a dramatic failure, maybe you had a lightning strike?

... or if these relays are controlling the power to the main heating element then that might be blown or shorted which caused the overcurrent that fried these relays but the fuses should have blown first and protected these

.... if these relays control the circulation pump then that could be blown also which caused the overcurrent but then same as above, fuses should have protected the relays

... unless it was lightning strike or power surge from the grid (how stable is the power in your area?) then something deeper is amiss ...

.... don't listen to these guys saying to replace the wiring which is a big job for an amateur, not a quick fix,  you just need to either to get this running again so you don't freeze or replace the whole system as you said earlier

... my advice at this point is get an electrician asap, doesn't need to be heating specialist even

https://twitter.com/Cointelegraph/status/1463366530733727747?




The $46.8 billion Aussie retirement savings fund Rest Super has said it is working to provide crypto exposure to its members under its diversified portfolio.

...

They want a race war.

This is not a race war.

This is communists taking advantage of those who cannot think well for themselves.

With the perpetrator bonding out for $1,000, I have grave concerns with the trajectory this country is on the precipice of navigating.

Good insight into solar power and real life figures applied to your mining operation and profitability at current prices.

What is the likely capital outlay of your 350Kw installation?


 

The Fed has already begun to reduce its bond-buying program from about $120 billion a month, so the pandemic required some extraordinary measures.
Liquidity is a problem in normal cases but people need to pay and back to normal life.
Inflection will be at 13% for some years but it will back to 4% at the end of 2025

https://www.thoughtco.com/history-of-us-federal-budget-deficit-3321439

...



By Tom Murse
Updated July 26, 2021
The budget deficit is the difference between the money the federal government takes in, called receipts, and what it spends, called outlays each year. The U.S. government has run a multibillion-dollar deficit almost every year in modern history, spending much more than it takes in.


The opposite of a budget deficit, a budget surplus, occurs when the government’s revenue exceeds current expenditures resulting in an excess of money that can be used as needed.

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Budgeting for an Online Education
In fact, the government has recorded budget surpluses in only five years since 1969, most of them under Democratic President Bill Clinton.

 In all-too-rare times when revenue equals spending, the budget is called “balanced.”

Adds to National Debt
Running a budget deficit adds to the national debt and, in the past, has forced Congress to increase the debt ceiling under numerous presidential administrations, both Republican and Democrat, to allow the government to meet its statutory obligations.

Although federal deficits have shrunk markedly in recent years, the Congressional Budget Office (CBO) projects that under current law increased spending for Social Security and major health care programs, like Medicare, along with increasing interest costs will cause the national debt to rise steadily over the long term.

The larger deficits would cause federal debt to grow faster than the economy. By 2040, the CBO projects, the national debt will be more than 100% of the nation’s Gross Domestic Product (GDP) and continue on an upward path— “a trend that cannot be sustained indefinitely,” notes the CBO.


Notice particularly the sudden jump in the deficit from $162 billion in 2007, to $1.4 trillion in 2009. This increase was due primarily to spending for special, temporary government programs intended to re-stimulate the economy during the "great recession" of that period.

Budget deficits eventually tapered back down into the billions by 2013. But in August 2019, the CBO predicted the deficit would again surpass $1 trillion in 2020—three years earlier than it had originally expected.

Here is the actual and projected budget deficit or surplus by fiscal year, according to CBO data for modern history.

2029 - $1.4 trillion budget deficit (projected)
2028 - $1.5 trillion budget deficit (projected)
2027 - $1.3 trillion budget deficit (projected)
2026 - $1.3 trillion budget deficit (projected)
2025 - $1.3 trillion budget deficit (projected)
2024 - $1.2 trillion budget deficit (projected)
2023 - $1.2 trillion budget deficit (projected)
2022 - $1.2 trillion budget deficit (projected)

2021 - $1 trillion budget deficit (projected)
2020 - $3.3 trillion budget deficit (projected)
2019 - $960 billion budget deficit (projected)
2018 - $779 billion budget deficit
2017 - $665 billion budget deficit
2016 - $585 billion budget deficit
2015 - $439 billion budget deficit
2014 - $514 billion budget deficit
2013 - $719 billion budget deficit
2012 - $1.1 trillion budget deficit
2011 - $1.3 trillion budget deficit
2010 - $1.3 trillion budget deficit
2009 - $1.4 trillion budget deficit
2008 - $455 billion budget deficit
2007 - $162 billion budget deficit
2006 - $248.2 billion budget deficit
2005 - $319 billion budget deficit
2004 - $412.7 billion budget deficit
2003 - $377.6 billion budget deficit
2002 - $157.8 billion budget deficit
2001 - $128.2 billion budget surplus
2000 - $236.2 billion budget surplus
1999 - $125.6 billion budget surplus
1998 - $69.3 billion budget surplus
1997 - $21.9 billion budget deficit
1996 - $107.4 billion budget deficit
1995 - $164 billion budget deficit
1994 - $203.2 billion budget deficit
1993 - $255.1 billion budget deficit
1992 - $290.3 billion budget deficit
1991 - $269.2 billion budget deficit
1990 - $221 billion budget deficit
1989 - $152.6 billion budget deficit
1988 - $155.2 billion budget deficit
1987 - $149.7 billion budget deficit
1986 - $221.2 billion budget deficit
1985 - $212.3 billion budget deficit
1984 - $185.4 billion budget deficit
1983 - $207.8 billion budget deficit
1982 - $128 billion budget deficit
1981 - $79 billion budget deficit
1980 - $73.8 billion budget deficit
1979 - $40.7 billion budget deficit
1978 - $59.2 billion budget deficit
1977 - $53.7 billion budget deficit
1976 - $73.7 billion budget deficit
1975 - $53.2 billion budget deficit
 1974 - $6.1 billion budget deficit
1973 - $14.9 billion budget deficit
1972 - $23.4 billion budget deficit
1971 - $23 billion budget deficit
1970 - $2.8 billion budget deficit
1969 - $3.2 billion budget surplus


very few good years and by the very nature of this going on and on and on inflation will occur.

BTW this is a bit old so the numbers from 2019 on are suspect. But are all in the hole.

1200 acres of row crops, and 100 acres of woods.

Casually looked into this for a 5 acre installation generating 1 megawatt cost >$2.0m.

And decided against it.




 

Takes a fellow farmer to know, debt, no guarantee of income, 365 days a year, (livestock do not recognize weekends or Christmas day).
Fighting livestock to get a drench down their throat, growing crops with an ever dwindling number of treatments available to fight pests and diseases. Ever changing legislation.

Would I change this? not for anything, it is a way of life rather than a job.

I like the constant challenge.

I missed listing one skill - how to skin a turd.

You cannot waste money like a government official and need to do your own repairs, maintenance and be inventive.

Hopefully my Bitcoin will allow the farm to stay intact when I die, with one of my offspring taking on the farm and the other two taking their share of inheritance in Bitcoin.

Hobby farms seem a big thing in Europe, with heavy subsidies to keep nonviable small farms working to prevent depopulation of rural areas. So an engineer may work in a factory, but milk a few cows or goats before and after their days work.

Good luck to the hobby farmers, there seems a lot of people have a need for some contact with the land, even on such a small scale as growing a kitchen garden, or a few plants to smoke as many on this forum seem to do.

OT: I live in an America where, at the American Music Awards, a band that is not even remotely American wins artist of the year.

https://www.foxnews.com/entertainment/american-music-awards-crown-south-korean-band-bts-artist-of-the-year

What a sad fkn joke this country has become.  

People getting set for Black Friday? Hoping to get those Christmas presents in before inflation puts them through the roof and Biden's supply chain leaves the shelves empty? Someone needed an XL turkey?