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Electric radiant ceiling heat (???)

tallgrass_coyote

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My friend called yesterday morning, has some issues with a toilet in his 60s vintage house. Went to cut some sheetrock out of the ceiling and and found this debacle. Never knew this existed. Went ahead and pulled the whole ceiling, we kept finding more issues as we went. Shocked his house hadn't burned down. There was melted insulation, burned up wires and scorch marks on the joists all over the place. Made demo a huge pain in the ass.
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Sloughfoot

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Good lord. I'm a builder and have never heard of radiant ceiling heat. Maybe electricity is too dangerous and never should have been made available to the masses. Like Edison tried to show us by electrocuting an elephant back in the day.

 
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hacskaroly

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My friend called yesterday morning, has some issues with a toilet in his 60s vintage house. Went to cut some sheetrock out of the ceiling and and found this debacle.
Wow, if a 60's house is vintage then my 1923 house must be ancient...lol. What a nightmare your already sucky project turned into.
 

bucketofguts

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Low voltage to keep a pipe from freezing OK but trying to heat a house with the same kind of method. Am I understanding correctly?
 

tallgrass_coyote

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Low voltage to keep a pipe from freezing OK but trying to heat a house with the same kind of method. Am I understanding correctly?
Exactly, ai synopsis:

Radiant ceiling heat from the 1960s-70s refers to systems with electric resistance wires embedded in the ceiling, popular during a time when electricity was promoted as cheap and clean energy. These systems were known for being low-maintenance but are often considered inefficient and expensive to operate today, with common issues including thermostat failures, a tendency for the wires to be accidentally damaged by drilling into the ceiling, and difficulty in repairing them without attic access.

How it worked
Electric resistance wires: The systems used a grid of electric resistance wires installed directly between layers of drywall or embedded in plaster and then covered with popcorn or other ceiling material.
Thermostat control: The heating elements were controlled by a thermostat, often a simple mechanical switch, that regulated the temperature for each zone or room.
Heating method: The wires heated the ceiling surface, which then radiated heat down into the room, warming objects and people directly.

Common issues
Inefficiency: Electric radiant heat is generally more expensive to operate than other forms of heating like natural gas or heat pumps.
Damage from drilling: A significant drawback was the risk of damaging the heating wires by accidentally drilling or nailing into the ceiling, which could lead to system failure.
Thermostat failure: Original thermostats were mechanical and prone to failure, leading to issues like the system overheating.
Repair challenges: Repairs were difficult, often requiring access to the attic to locate and fix broken wires.
Comfort issues: Some users found the heat uncomfortable, as it would warm their heads but not their feet effectively.
 

Sloughfoot

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Have any of you seen the little badges on houses built in thelate 60s 70s that say Live Better Electrically. Most often on the doorbell, sometimes a round badge attached next to an entry door. There was a huge push to use more electric appliances, heat in houses by the same companies that built the generators and stuff in dams. Too much power too soon so prices dropped and the power companies were losing money, so this Live Better Electrically thing was started.
 

blades

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I remember those programs and then came the 70's and massive increases in electric bills. ( on going to this day).
 

Woodtroll

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Yep, ran into that once myself on a remodel project, with the same experiences you had. Who ever thought it was a good idea to supply heat at the ceiling level anyway? :rolleyes::oops:
 

Sloughfoot

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I remember those programs and then came the 70's and massive increases in electric bills. ( on going to this day).
We recently got a 50 year old fixer upper that qualified for one of the badges. It's got 4 or 5 220 V flush mount wall heaters for it's main heat source in 1200 square feet. Running one of them to heat a 150 sq. ft. room costs us $150 a month. They wouldn't turn down below 75.
 

bigbadbob

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Some of that stuff installed in Canada 1980s called Flexiwatt.
Was banned and had to be unhooked. Fellow i knew had it in his concrete condo,,, a nightmare to get another source of heat.
chrome-extension://efaidnbmnnnibpcajpcglclefindmkaj/https://www.advancedhomeinspections.ca/.pdf/Flex-Heat_Heating_Systems.pdf
 
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