Just sayin
Yep, the late '80s and much of the '90s saw gas utility companies (not all in the south, notably) running ads that stressed the marginal capability of heat pumps.
Posted on 06/22/2024 6:49:34 PM PDT by ChicagoConservative27
If Minnesota wants to reach its goal of net-zero carbon emissions by 2050, the state must rapidly cut greenhouse gas emissions from buildings, a sector where pollution is still on the rise.
A path to phasing out building emissions exists, according to a new report commissioned by Clean Heat Minnesota, a diverse group of energy experts, cities, community service organizations, and consumer advocates.
The report, called the Minnesota Building Decarbonization Analysis, shows that billions of dollars in investments and dedicated planning will be needed to help the state hit its climate targets. But doing so is possible, and best accomplished through mass electrification, the report found.
(Excerpt) Read more at sahanjournal.com ...
I’m disgusted by these phony, baloney, government-created “climate goals.” There is NO technical basis for these ridiculous “goals.” One state meeting its goals, one country meeting its goals — it’s all meaningless with China and India building new coal-fired power plants at a furious pace. Ten million heat pump retrofits would not offset the CO2 emissions from ONE Chinese coal-fired power plant.
Heart pumps are a stupid idea in general, and criminally so in cold climates. (Former AC engineer)
We had heat pumps in AF housing in Florida in 1971, so they are nothing new.
Also in our private home in Utah, we had a swamp cooler that worked quite well in the summer which was very cheap to run with gas heat in the winter.
Have had several heat pumps in Missouri but must use the auxilliary heat at times in winter.
I have read about ground source heat pumps, don’t know if that would be sufficient for the northern states or not.
Geothermal heat pumps (GHPs), maybe, but regular heat pump - hell no.
Where will the electricity to drive heat pumps come from???
Our already over-stressed generation and distribution systems???
Idiots.
“Analysis, shows that billions of dollars in investments and dedicated planning”
Hazzah comrade. The glorious centrally planned, and forced, utopia will usher in a new age of communist glory.
Can any one of those idiots explain what a heat pump is? And how many of those same idiots have investments in the Chinese slave factories that manufacture these machines?
Just sayin
Yep, the late '80s and much of the '90s saw gas utility companies (not all in the south, notably) running ads that stressed the marginal capability of heat pumps.
I have NG heat in town. LP heat at the farm.
My brother had straight heat pump, he froze all winter. And still had a high bill.
For a long time where I live, we used Evaporative air conditioning at the farm. Even before Evaporative coolers, they had exhaust fans in central hallway and saturated cooling pads on the windows.It cooled the house and kept the attic cooler. Worked very well. They later added an exhaust fan to make it better.
Once the temp gets under 40 degrees F, there is no more heat for the heat pump to pump. The resistance heater strips kick in. Your house is warm, but you can use your electric meter as a buzz saw.
In a Minnesota winter you would be running resistance heat pretty much from October through March. Hope they don’t outlaw fireplaces - gonna need them.
Yes, they can be VERY efficient and advisable. IF you’re willing to build it with the right deep-sunk heat sink piping. But that’s a lot of drilling for very hot or very cold climates.
“Once the temp gets under 40 degrees F, there is no more heat for the heat pump to pump. The resistance heater strips kick in”
Yes, if your experience is limited to circa 1987 heat pumps that sounds about right.
Around here premium systems installed in new subdivisions are starting to switch over around -5°F.
I remember one year in Minneapolis where it didn’t reach a high of 0 F for a week.
In March.
There is no *free* energy or heat.
EVERYTHING takes some sort of input to produce heat and results in some kind of emissions.
LOL
I used to live in North Dakota. Average temp for Jan & Feb was -20 degrees.
Air source heat pumps simply won't work in Minnesota. They frost over whenever the air temperature gets near freezing, or lower. That's most of the winter. They then require inefficient and expensive backup heaters.
Geothermal heatpumps are equally expensive. they require deep underground water loops to capture heat from deep below the surface. There isn't enough land area available in most urban house lots to dig the deep trenches to provide the water loop. Deep wells can provide the warm water, but there's no place to dispose of the water that is used. Municipal water treatment lants can't handle the added water.
I have been using these heat pumps since 1988, and have experienced all of these problems.
Folks in the UK cam give you chapter and verse on the mold issues, and not just with the equipment.
“Heat Pumps work down to outside temps in the 30s. Not sub-zero like in Minnesota at times”
Improvements has been made in the technology and (for a price) the most efficient pumps will put out heat when the temps are in the -10 to 0 f range. Still not good enough Minnesota without some back up system.
“an air-source heat pump can perform well beyond temperatures of -13 degrees Fahrenheit! S”
The low pressure side has a temperature of -50F I think. So that is the limit below which it does nothing. Probably at 0F it has lost half its ability to warm the cold side from the ambient air. I think the efficiency improvements are related to increasing the pressure on the high pressure side, which reduces the temperature of the low pressure side when the refrigerant is allowed to expand. They are expensive and any cost savings is gone when natural gas is an alternative at current price, delivered, of about $1.20 per 100 cubic feet. 100 cubic feet of natural gas has the BTU of about .8 gallons of heating oil. But when the government makes fossil fuels illegal it will be great to have a heat pump.
We had a hvac contractor out for a check up when it was brutally cold out. He tagged the furnace because of carbon monoxide. Heat pump kept the house at 40 and we bought space heaters, used wood fireplace for a couple days until the new furnace could be installed. I want to say it was around 0 when all this happened, but you’re 100% correct that they lose their efficiency under 40.
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