146
submitted 1 year ago by sik0fewl@kbin.social to c/canada@lemmy.ca

Sales are growing so quickly that some installers wonder whether heat pumps could even wipe out the demand for new air conditioners in a few years and put a significant dent in the number of natural gas furnaces.

you are viewing a single comment's thread
view the rest of the comments
[-] heyheyitsbrent@lemmy.ca 33 points 1 year ago

To me, it's absolutely crazy that AC units are even still marketed. An air conditioner is just a heat pump that only work in one direction (cooling). All that is needed to allow it to work for both heating and cooling is one extra valve. If you're going to install a heat pump (in the form of an air conditioner) and a furnace anyway, you might as well let the heat pump provide heating as well. That way, your furnace is only required on the coldest nights. For most of the year, the heat pump is sufficient.

[-] kent_eh@lemmy.ca 6 points 1 year ago

With the caveat that at lower outdoor temperatures (think below about -20C), heat pumps become increasingly ineffective at heating up indoor spaces.

For places that reach those temperatures in winter (most of the prairies and northern Ontario) you also need supplemental heating of some sort.

[-] Pxtl@lemmy.ca 4 points 1 year ago* (last edited 1 year ago)

Well, everywhere in Canada outside of maybe Vancouver does dip deep below -20 once in a while. But for the "Quebec City to Windsor corridor" (which is where about half of Canada lives eg GTA) you theoretically should be able to get away with some electric space heaters as a backup heating source. They'd be expensive to run but it would likely only be for a few days per year.

[-] p1mrx@lemmy.world 2 points 1 year ago* (last edited 1 year ago)

They’d be expensive to run but it would likely only be for a few days per year.

"Pay for more electricity" might not work very well, if everybody in a region uses resistive heat at the same time. I'm not sure what the solution is... maybe an overprovisioned power grid, cheaper battery tech, or tanks of renewable backup fuel like dimethyl ether?

[-] Darkassassin07@lemmy.ca 1 points 1 year ago* (last edited 1 year ago)

Local power storage.

If you're home had a battery bank, it could slow-charge pretty much all the time, then help pick up large on-demand loads like heating/cooling (air, water, food, etc).

Then the power grid would see a relatively steady load from each home with the batteries smoothing out spikes in usage.

Add on local generation like solar or wind to further reduce that load on the grid.

[-] CADmonkey@lemmy.world 3 points 1 year ago

Heat pumps often have the option of a heater strip that lets it work at those temperatures.

this post was submitted on 27 Jul 2023
146 points (100.0% liked)

Canada

7273 readers
424 users here now

What's going on Canada?



Related Communities


🍁 Meta


🗺️ Provinces / Territories


🏙️ Cities / Local Communities

Sorted alphabetically by city name.


🏒 SportsHockey

Football (NFL): incomplete

Football (CFL): incomplete

Baseball

Basketball

Soccer


💻 Schools / Universities

Sorted by province, then by total full-time enrolment.


💵 Finance, Shopping, Sales


🗣️ Politics


🍁 Social / Culture


Rules

Reminder that the rules for lemmy.ca also apply here. See the sidebar on the homepage: lemmy.ca


founded 4 years ago
MODERATORS