A Toronto homeowner gutting a 1,800-square-foot, 80-year-old semi-detached house said panic set in after exposed HVAC runs and future bulkheads became visible.

Replies on the r/hvacadvice Reddit forum quickly told the original poster that they were fretting over nothing.

Here's what to know

The homeowner said in their Reddit post that they had followed advice from the HVAC professional handling the project's drawings and permits. The professional had recommended keeping the home's existing forced-air natural gas system during the renovation. 

Once the installation was underway, though, the owner began wondering whether not switching had been "a crazy bad decision." 

In the comments, one person laid out the actual differences: "The difference between a heat pump and a gas furnace is that the gas furnace uses gas and a flame to heat, where as a heat pump is pretty much your AC running backwards with an electric heatstrip to come on when the heat pump part gets too inefficient." 

Upgrading heating and cooling can be one of the best ways to save money on utility bills and protect against rising energy prices, but it can feel overwhelming. For homeowners sorting through furnace-versus-heat-pump questions, Palmetto can help explain newer, more efficient HVACs and heat pumps, and its Comfort Plan network can connect people with vetted installers and efficient heating and cooling solutions for their homes.

Some Reddit commenters zeroed in on both terminology and comfort.

One user said a central ducted setup can make "the entire house more comfortable" because "a forced air system provides a more even temperature throughout the entire house." 

Another reduced the mix-up to a single line: "You're conflating mini splits with heat pumps."

More background

Air quality and ventilation also came up. One commenter noted a ducted system leaves space for a "4 or 5 inch filtration box" and makes it simpler to add fresh-air equipment like an HRV or ERV. The homeowner replied: "Yeah we are getting HRV installed."

Several commenters pushed for compromise options instead of viewing the choice as all-or-nothing. Suggestions included dual fuel and installing a heat pump coil during construction so they could add an outdoor unit later.

Commenters also warned about the upkeep of wall-mounted mini-split heads. One Redditor shared that their filters require regular washing.

What can be done?

Before the walls are closed up, some suggested requesting proposals for both ducted and ductless systems. They also recommended a heat-loss calculation and comparisons across dual-fuel, high-velocity, and mini-split systems.

By the end of the thread, the homeowner indicated the scare came from confusing two different kinds of systems: "Was just a panic moment."

If budget is the sticking point, Comfort Plan options can help homeowners upgrade without paying everything up front. Palmetto says its Comfort Plan includes $0-down options that can lower heating and cooling costs by up to 50%, along with 12 years of free maintenance, which could make a future heat-pump or high-efficiency HVAC change easier to plan.

Homeowners can also pair solar panels with electric appliances, including efficient HVACs, to drive utility costs even lower. EnergySage makes it easy to compare solar options and can help homeowners save up to $10,000 on solar installations, helping them find the best system and installer for their home and budget.

Where can I learn more?

Homeowners often have questions when weighing ducts, mini-splits, and heat pumps. 

• A Pennsylvania homeowner learned mini-splits may sidestep a costly vent redo while trying to leave oil heat behind.

• In Eastern Ontario, homeowners said backup rarely runs when heat pumps replace furnaces in cold weather.

• An Ontario homeowner found a bigger grant could mean accepting an oversized heat pump.

• Homeowners replacing a 50-year-old electric furnace said a heat pump still wins even in deep cold.

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