# Mini split guides

> Plain answers on mini splits for DC houses: cooling a house without ducts, what installation costs, sizing, placement, permits and rebates in the District.

URL: https://roomwisedcminisplits.com/guide/

Guides

Answers to the questions that come before an estimate, written for DC row houses, condos and older homes.

## Planning a mini split

- [Learn**How do you air condition an old house without ductwork?**](https://roomwisedcminisplits.com/guide/air-conditioning-old-houses-without-ductwork/)
- [Learn**Do mini splits work in winter?**](https://roomwisedcminisplits.com/guide/do-mini-splits-work-in-winter/)
- [Learn**Do I need a permit to install a mini split in DC?**](https://roomwisedcminisplits.com/guide/mini-split-permit-dc/)
- [Learn**Does a mini split dehumidify?**](https://roomwisedcminisplits.com/guide/mini-split-dehumidification/)
- [Learn**How long does it take to install a mini split?**](https://roomwisedcminisplits.com/guide/mini-split-installation-process/)
- [Cost Guide**How much does it cost to run a mini split?**](https://roomwisedcminisplits.com/guide/mini-split-operating-cost/)
- [Learn**Where does a mini split's condensate drain go?**](https://roomwisedcminisplits.com/guide/mini-split-condensate-drain/)
- [Learn**What electrical work does a mini split need?**](https://roomwisedcminisplits.com/guide/mini-split-electrical-requirements/)
- [Learn**What types of mini split indoor units are there?**](https://roomwisedcminisplits.com/guide/mini-split-indoor-unit-types/)
- [Cost Guide**How much does a mini split cost to install in Washington, DC?**](https://roomwisedcminisplits.com/guide/mini-split-installation-cost-washington-dc/)
- [Cost Guide**What rebates can I get for a mini split in Washington, DC?**](https://roomwisedcminisplits.com/guide/mini-split-rebates-dc/)
- [Decision Guide**Is a mini split better than central air?**](https://roomwisedcminisplits.com/guide/mini-split-vs-central-air/)
- [Decision Guide**Should I get a mini split or a ducted heat pump?**](https://roomwisedcminisplits.com/guide/mini-split-vs-ducted-heat-pump/)
- [Learn**Where should a mini split be installed?**](https://roomwisedcminisplits.com/guide/mini-split-placement/)

## Single-zone installation

- [Decision Guide**Should I replace my window AC units with a mini split?** What you gain and give up when the window units come out, when keeping one still makes sense, and what the switch involves in a DC house.](https://roomwisedcminisplits.com/guide/mini-split-vs-window-ac/)
- [Learn**What size mini split do I need?** Why two rooms of the same size can need very different units, what goes into a heat-load calculation in Washington, and how to spot a quote sized by guesswork.](https://roomwisedcminisplits.com/guide/mini-split-sizing/)

## Multi-zone installation

- [Learn**How many mini split zones do I need?** A room-by-room way to count heads, why open doors and stairs matter more than floor area, and when fewer heads make a better system.](https://roomwisedcminisplits.com/guide/how-many-mini-split-zones/)
- [Decision Guide**Should I get a single-zone or a multi-zone mini split?** When several separate systems beat one shared outdoor unit, when they don't, and how a DC lot, a historic district or a condo board can make the choice for you.](https://roomwisedcminisplits.com/guide/single-zone-vs-multi-zone-mini-split/)

## Repair

- [Learn**Why is my mini split leaking water?** A dripping head is almost always water that isn't reaching the drain. How to narrow down why, what's safe to check, and what a repair costs.](https://roomwisedcminisplits.com/guide/mini-split-leaking-water/)

## Ask about your house

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