A homeowner in Montreal is weighing whether a roughly $20,000 cold-climate heat pump upgrade makes sense for a 1945 three-story house with an extension.

The homeowner took their situation to Reddit's r/HeatPumps community, asking whether a proposed four-head mini-split arrangement sounded like the right approach.

Here's what to know

The project under consideration would swap the home's electric furnace for a cold-climate heat pump. The current plan would place indoor units upstairs, across the main floor living areas, and in the basement, where the house still relies on "very old" electric baseboards.

Because of the home's layout, the homeowner is also thinking about using two outdoor units. The quoted price was about $20,000 before rebates and tax.

The original poster added: "Our house is poorly insulated, but the windows are relatively new… Am I generally on the right track with this setup?"

Several commenters suggested that the OP opt for standard heat pumps rather than mini-split heat pumps.

"Why would you consider split units when you already have ducting? Never use split units when you already have ducting; it is much less efficient. Plus, you lose air filtering, humidifying, and air exchange," one person wrote.

Another commenter added, "I'm an electrician and have worked with heating systems in Saskatchewan for decades… May I suggest you look at a heat pump to heat the water for your boiler instead of mini splits?"

More background

Upgrading a heating and cooling system is one way to save money on utility bills and protect against rising energy prices. Heat pumps can be especially appealing when they replace resistance-based electric heating, which is often expensive to run.

Cold-climate heat pumps have become a bigger part of the HVAC conversation because newer models are designed to keep working efficiently at lower temperatures than many people assume. For a city like Montreal, heat pumps are more practical than older perceptions might suggest.

And while $20,000 is a significant upfront cost, it is only part of the picture. Rebates and tax incentives can reduce this sum, while lower monthly energy use can also improve the math.

If you want help sorting through all this information, Palmetto can help homeowners understand their HVAC options and slash their energy bills with new, efficient HVACs and heat pumps. Palmetto's Comfort Plan network can also help you find efficient heating and cooling solutions for your home and connect you with vetted installers.

Where can I learn more?

The following articles dig into the same issues behind that Montreal quote: the sticker shock that comes with upgrading an older home, whether cold-climate heat pumps can handle winter, and how much rebates can soften the blow. They also show how other homeowners are balancing upfront cost with comfort and long-term savings.

• In central New Jersey, families weighing $15K to $20K HVAC quotes faced the same sticker shock.

• In Minnesota, a northern couple said they've done great even through frigid winter weather.

• In North Carolina, homeowners can still claim $8,000 for ultraefficient HVAC upgrades.

Reading through these stories can give you a better feel for what to expect before you start collecting bids. They also make it easier to spot the difference between a quote that justifies its cost and one that's expensive for a reason.

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