Case studies
Whole-house ductless for a North End home that never had ducts
A 1920s North End home heated by radiators and cooled by four window units. A four-zone ductless system replaced all of it.
At a glance
The job at a glance
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Location: North End, Boise, Idaho
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Home: 1920s two-story, hot-water radiators, four window air conditioners
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System: four-zone cold-climate ductless heat pump, wall heads in three rooms and a ceiling cassette in the living room
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Duration: three days
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Rebates: federal heat pump tax credit
The challenge
No ductwork, no realistic way to add it without destroying plaster walls, and a summer routine of hauling window units in and out. The homeowners wanted real cooling and a way to retire the aging boiler eventually.
What we did
A four-zone ductless system with a single outdoor unit tucked behind the garage. Wall-mounted heads in the two bedrooms and the office, and a ceiling cassette in the living room so nothing hung on the plaster walls. Line sets ran through closets and the basement to keep the exterior clean.
The result
Four window units gone, every room at its own temperature, and a system that heats well enough that the boiler is now backup. The homeowners qualified for the federal tax credit on the heat pump.
In the homeowner's words
"We'd been told for years that central air wasn't possible in this house. Nobody mentioned ductless. The living room cassette is invisible."
More case studies
Replacing a 30-year-old furnace with ductless on the Boise Bench
A Bench bungalow with a crawlspace furnace from the 1990s and no air conditioning. Two ductless heads gave it heat, cooling and cleaner air in a day.
A dual-fuel heat pump for a Nampa family tired of gas bills
A sound gas furnace, an air conditioner that died, and a family watching their winter bills. We paired a cold-climate heat pump with the furnace they already had.
A properly sized furnace and AC replacement in Meridian
A builder-grade system at 16 years, an upstairs that never cooled, and a homeowner who'd been told to buy bigger. The load calculation said otherwise.
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