Ductless Mini-Split Installation in Sherrelwood

A 1962 ranch nearby had forced air and central air, but in many homes of that era the original ducts were sized for heating only and are too small to move cooling air. Rather than rebuild them, two or three heads on a multi-zone outdoor unit can handle the cooling while the gas furnace stays as the winter workhorse. On mild fall and spring days the mini-split can heat too.

Ranch attics are usually accessible, so line sets can drop through the ceiling to a head on an interior wall, which keeps the exterior clean.

Over 60 years, a lot of Sherrelwood homes picked up a family room addition, an enclosed porch or a converted garage that the furnace barely reaches. Those are classic single-zone jobs. One head, sized to that room's load, ends the space heater habit. Our mini-split guide for older houses shows typical layouts.

Adams County's heating design temperature is 5°F, and the Sherrelwood area sits at about 5,292 feet. We choose models with published capacity at 5°F and set the condenser on a stand above snow and roof-drip lines. Condensate from the indoor head runs to a drain or pump inside the conditioned space wherever we can, because an outdoor drain tube freezes shut in January.

We seal every wall penetration and slope the line set back toward the outdoor unit so water can't track inside.

Sherrelwood is unincorporated, so Adams County issues the permit and requires contractor registration. We handle both and schedule the inspection. Older 1960s panels are sometimes full or 100 amps; a single-zone unit usually fits, but a large multi-zone system may need panel work, which we tell you up front.

Federal 25C is gone for systems placed in service after 2025. Colorado's $1,000 heat pump credit for 2026 applies to qualifying air-source equipment, with at least $333 on the invoice. Power Ahead Colorado offers $1,500 for cold-climate heat pumps in DRCOG areas, and Adams County qualifies. Check your bill to see who supplies your electricity before counting on a utility rebate.

Most single-zone jobs take one day. We mount the wall bracket for the head, drill a single three-inch hole, set the outdoor unit, run and flare the copper line set, then pressure-test it with nitrogen and pull a deep vacuum before releasing refrigerant. Skipping the vacuum is the most common shortcut in ductless work and the reason some systems lose charge within a few years.

The electrician's part, a new breaker, the circuit and the outdoor disconnect, usually happens the same day. We finish by walking you through the remote, the filter and the settings for heating on cold mornings.