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Mini split guides

Ductless, zone-by-zone comfort — what a mini split is and how it heats and cools without ducts, plus the general HVAC guides that apply when you're deciding, repairing, or replacing.

Explainer

What is a ductless mini split?

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Comparison

Mini split vs. central air

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Buying

Multi-zone mini splits — how many zones

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Explainer

Air filters — how often, which MERV, size

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Troubleshooting

Leaky air ducts — seal, repair, replace

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Explainer

Air duct cleaning — do you actually need it?

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Cost

New ductwork cost & when to replace

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Buying

Types of ductwork — metal, flex, fiberboard

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Explainer

Duct insulation — R-value, where, savings

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General HVAC guides

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