In very tight, heat-pumped homes in the Maritimes and Gulf Coast, is a dedicated dehumidifier still needed?
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AFCI rules change a lot between kitchens and basements because the NEC has stricter rules. GFCI rules for outdoor spots are pretty much the same everywhere, just with a few small local changes.
Yes. In both the Maritimes and Gulf Coast, even tight, heat-pumped homes often need a dedicated dehumidifier—especially in humid shoulder seasons or heating mode when the heat pump won’t remove moisture.
Yes
Both regions often need a standalone dehumidifier, since tight, high-efficiency homes with heat pumps may not get enough latent removal in mild, humid weather when cooling demand is low.
Yes, in both regions.
In tight, heat-pumped homes, cooling systems may not run enough in mild or shoulder seasons to remove moisture, so a dedicated dehumidifier is still needed for year-round RH control.
In very tight, heat-pumped homes in the Maritimes and Gulf Coast, the need for a dedicated dehumidifier depends on the climate, heat pump operation, home design and construction.
YES
In very tight, heat-pumped homes in the Maritimes and Gulf Coast, a dedicated dehumidifier may still be needed, even with a heat pump.
While heat pumps do dehumidify as part of their cooling function, their effectiveness can be limited in high-humidity areas, particularly during shoulder seasons or when dealing with persistent moisture issues like basements or crawl spaces.