Do Heat Pumps work in Very Cold Climates?
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- Опубликовано: 28 мар 2023
- Are heat pumps a good idea for very cold climates?
If you live in an area where electricity is affordable, you should consider a heat pump. They are an alternative to furnaces and air conditioners, as they can also supply cool air for a central air conditioning system during hot weather.
Heat pumps move heat rather than generate heat. This makes them very energy efficient. In fact, a heat pump can reduce your electricity consumption by 50%
makeitright.ca/holmes-advice/... #bosch #heatpumps #mikeholmes 
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It should be noted that the three nations leading the world in heat pump ownership are Norway, Sweden and Finland! Several articles on the web describe how they do it.
I want to hear the actual utility operating cost to the homeowner between a heat pump (electric) and natural gas during winter.
Manitoba Hydro has done exactly that. It only applies in MB though.
www.hydro.mb.ca/docs/resources/space_heating_costs.pdf
Depends on utility costs which move up and down.
Last I checked natural gas was more efficient if you have a 90%+ efficient furnace from about 35-40F and below.
Heat pumps are getting more efficient but they are complex and manufacturing and distribution of units and parts is being deliberately sabotaged as well as happening from rushing things to market to try to beat the competition.
They are extremely bothersome to fix because they break when you need them most and require the technicians to work out in the extreme cold.
They can also break the bank. Even if you get a full parts AND LABOR WARRANTY it is dependent on having a company back it and they may stop being a dealer just to pull out of backing a brand that is destroying their cash flow because they are required to fulfill warranties and those aren’t paid well.
So, long story short, the globalists have studied this matter in depth and are driving the population into a corner so that they can harm you financially and physically and emotionally whenever possible.
Many people will go into debt despair and commit suicide over these situations (usually greatly amplifying all their other problems).
@@XX-qf5zj So don't get a heat pump because you might end up killing yourself. Got it.
@XX-qf5zj does your furnace break in the summer so it's nice and easy for the hvac to work on it?
So
Do the math and figure it out .
I used to have an old amana heat pump on my previous house but it would go into aux heating at around -8c and was super noisy especially when in defrost mode . Now my in my new house I got installed a Gree Flexx 3 ton recognized by hydro Quebec and greener homes Canada which is just amazing it’s the cold climate model -30 with a auxiliary electric furnace , the aux come on between 3 min to 25 min per day depending on how cold it is on the day , this machine is incredibly quiet , last 3 weeks average temperature is -15 to -20 , house is very comfortable. I live in Quebec Canada.
A COP rating greater than 3 at -25°C. Would be great Mike.
Maine has been successfully using whole house heat pumps for winter heating for the past several years even in the coldest northern parts like Caribou. They don't make sense for every house especially if you have already installed a natural gas system. In Maine you can get a winter electricity heat pump rate which is cheaper in the winter and more expensive in the summer. I had my whole house hyper heat pumps were installed last month and they are working great. They are two single zone (12k/9k) Mitsubishi hyper heat pumps which work at 100% efficiency at -5. It rarely gets below that in my part of Maine but it did hit -16 last winter for a few hours. Some houses with heat pumps and no backup got colder in the lower 60s but no ones heat pumps stopped working, plus most people have secondary heating sources that can kick inn. Most Maine homes do not have access to natural gas so the electricity rates will easily beat propane and oil by a long shot. Plus you also get cheap ac in the summer. I also have a wood stove for backup and outages but its a pain to use for heating.
I install minus 30 packages in the bc kooteny's and really is a large energy savings
What manufacturers are producing -30 rated heat pumps? I'm also working in the HVAC R industry out of Alberta, as best as I've seen the lowest rated are carrier and Napoleon, only going down to -20c with a reasonable COP/HSPF as compared to the cost of running a traditional high AFUE gas furnace.
@@noahnk1876the exchange coils are placed underground below the frost line then it can operate in any above ground temps
LOL @pablohughes1426 where is the proof. Show me proof that my electrical bill will go down compared to what I use now. Also, I imagine the packages you install in the Kootenays are probably for the A Fluent customer with a lot of money to burn, as in $30 Grand. Even if I get some kind of grant or incentive from the Government, it is going to take a long time to pay for itself, if it even proves to have any longevity at all.
@@noahnk1876 check out Arctic heat pumps. They are rated for -30°C. The system is new to us this winter, the electric backup boiler kicked in at -27°C because that’s what we set it for ahead of the -41°C temperatures.
Just make sure it's far away from where you sleep. If the cold doesn't keep you up, the noise and vibration from rhe heat pump will.
My perspective is the capability to use Geothermal/water sink rather than air sink because the ground or a nearby body of water is a much better place to get heat from than the air, particularly when the air is really cold.
The heat pump at the library just blew cold air on me-not what I’m wanting in the winter. It wasn’t like my furnace, which starts with hot air that turns cool for a few seconds at the end of the cycle-just cold air or nothing.
I've never had a heat pump save me money in my life even when they were just maintenance if anything my power bills were triple double for sure
That’s also going back to electric water heaters. That also racks up the electricity bills every month.
Building now. Bosch ids dual fuel heat pump. Northeast PA
Make sure you mount it high enough so when they defrost it doesn't build up an icy base rendering it useless. Also have emergency coils working just incase the temperature gets below zero.
Mike needs to discover what companies like Mitsubishi and Fujitsu achieve ... hint: Things far better than the American brands that can't engineer efficiencies if their lives depended on it.
Truth
If I need a more efficient unit, I'd appreciate literature for northern NJ, on a river, condo facing east. So when I get it one more thing for the renovation resolved.
How warm should the air be coming out of vent of electric a/c in winter time?
Gonna keep this as clear as possible.
I'm baffled at how a heat pump is apparently able to heat a home in, let's say -15°C weather.
First off, how is a heatpump able to physically extract heat from air that's rated -15? Secondly, how is said heat extraction more efficient than actual heaters using resistive heat?
If anybody can answer this enigma for me I'll even expand on where I'm getting at...if heatpumps are truly able to extract heat from -15 outside air wouldn't it be logical to use that "technology" and manufacture a unit that is put inside the home? Hopefully you're still with me...wouldn't it be even more efficient by taking, indoor air that's already at let's say 10 or 15°C? I'm skeptical at the fact that these systems are so efficient yet nobody's thought of this option....really?
Back to my initial interrogation...We all know a thermal pump uses refrigerants to cool a home down and takes the heat and expels it outside, right? How can a thermal pump be able to extract heat from outside in winter? I could even go along with the possibility that if your pump is in direct sunlight, in optimal conditions it could extract a certain amount of heat but obviously the sun being less present in the winter puts that scenario to rest pretty fast.
Unlikely Mike 'll bother to read, much less respond, but if anyone can elaborate on what I'm not getting that would be very interesting. ✌😊👍
Absolute zero is -273°C. Anything above that contains heat. The heat in air at -15°C can be extracted (bringing that air down to say -17°C) and the extracted heat is transferred into the refrigerant via a heat exchanger. This, with the help of an electric compressor, causes phase and pressure changes in the refrigerant that allow it to move much more heat (2 or 3x more) from outside to inside (or other way for AC mode) than could be accomplished by converting that same electricity to heat.
You can't use a completely indoor unit using the inside the air, because you would be cooling it as you are trying to heat it.
Just like an air conditioner can take cold from warm outside air and put it into your house, a heat pump can take heat from cool air and put it inside your house, but that's actually the wrong way to think about it. There is no such thing as cold, only more or less heat. These refrigeration units are able to move the heat from one place and put it into another. This is why you need to extract the heat from some place outside to add heat to, or take heat from, preferably the ground, or water.
@johnwyman6126 they actually start making window heat pumps not much more than similar size air conditioner
Gradientcomfort sells them
@@malachihart7370 Yes, I have seen them. I have looked at other window heatpumps that are much, much less expensive. $5000 can buy an awful lot of electricity.
Love ya mike but heat pumps most likely will be powered from the grid. A grid run on fossil fuels. And the back up??? Well it’s gonna need to kick in around 38° to maintain a discharge air temp that will warm the house well. If the house is really well insulted it will work but in the majority of houses they wont
Not ours. Our heat pumps works to minus 13. If you bury the coils below the frost line. It will work in any cold temp. A simple solar system will power it fine off grid.
Your grid runs on fossil fuels? What is this the 1920s?
Mike there is a heat pump coming out and the engineer lives in Montreal, it’s in the stages of approval and supposed to change our lives big time.
I have a Mr cool 4-5 ton. It’s costs me a fortune to run in the winter months here in Ohio. It won’t heat below 20° outside without a heat strip. It is very very expensive. 15k down the drain on this setup. Gas heat was much cheaper.
I was wanting to know if I was to add a plate water heat exchange to the liquid line after the outside unit if it would help with efficiency.. or lower head pressure..
Heat pump with emergency heat strip, gives heat pump a chance to thaw during 32 degrees
R32 and R290 monoblock heat pumps if you have hydronic heat. No dual fuel required ever.
In other words you need to buy another heater because the heat pump will never produce enough heat
GSHP only way to go
Take a look at ground, or water source heat pumps.
De Mitsubishi Hyper heat series are Good Choice for coold The regions
Hi mike
We need 10” x 10” ceiling cassettes.
First choice...Geothermal heat pumps... no need for back up... extract heat from the earth not the air... great for very cold climates... draw back; expensive ....
Second choice is... VRF(mitshubishi)heat pumps works well... drawback; need for backup heat for very cold climates/expensive
Third choice... hyper heat(mitshubishi)minisplits or similar technology in conventional heat pumps(bosh)drawback; backup heat needed( duel fuel or electric heat strip) (this is a general explanation)....
Go geothermal. It doesn't matter what the weather is doing only the well. Dual fuel would be a wise decision for emergency backup.
Geothermal is a great idea,id like to see them refined and more reliable.
Geothermal is great... where it's possible
I know several people with geothermal heat pumps. They suck. The electricity is more expensive than burning gas.
@@LOGIBEAR01 ya it definitely requires living in certain locations for it to be viable
Geothermal is very region specific, and not even and option in many places.
So now I need gas, compressor, refrigerant, and electricity...aren't there laws of thermodynamics?
Mr Cool DIY
this sounds dumb to me. my house is cold in the morning, so i turn on this heat pump that takes warm air from another part of the house and pumps it else wear. where is the heat coming from to start with?
Gas fired heat pump may be the solution Mike.
Sounds really expensive and not effective enough to properly heat a full size home. What’s the average life of a heat pump or a high efficiency furnace? My advice, reduce the heat a couple of degrees and just put on some warmer clothes.
Underground heat pumps is the way to go. Todays above ground heat pumps can work to -13 some much colder but if you live in colder climes then you must put them underground
Wood stove works better than not any heat pump or an oil furnace
Fujistu makes one of the best I heard. They can create heat even when -32C outside. Nowadays alot of heat pump brands can easily go below -24C and more
They literally don't 'create' heat though. Newtons 2nd law of thermodynamics.
Heat is transfered. If one side is getting hotter the other is getting colder.
Extreme cold? Definitely dual fuel
Defense Act for researching heat pump technology? Let me guess, next is defense act for electric stoves/ranges to rid us of gas cooking.
Does anyone have more info on specific projects they're refering to? Information about this is sparse.
You use double the energy to transfer that heat. Instead of generating it.
It’s actually 1/3
@@joshrothchild8855 wrong. Try again. Thx for proving you don’t work on heat pumps.
Or more
@Daniel-os9tb uh...the heat pump needs to move heat. The colder it gets, the less efficient it gets. Even running geothermal, the electricity costs to run the pump are very expensive when it gets as cold as it gets in canada. If you know how they work and the issues that arise, you wouldn't seem like such an ignorant keyboard warrior.
@@joshrothchild8855depending on climate..maybe...and electricity pricing and sources.
As they as efficient as AC?:) AC is also transfer heat from one place to another but my hydro bills show it anyway that it is not cheap to use