Mini Split Installation in Hempstead, NY
A new system here will heat from October through May and cool from June through September every year. Tell us about the house, and a licensed contractor who covers Nassau County will get in touch.
Tell us about the job
It takes about a minute.
What Hempstead winters and summers ask of a mini-split
Your mini-split runs for whichever season is at your door, all year. Winter nights average 28°F from December through February, and summer afternoons average 82°F. That is eight months of heating and four months of cooling on the same system, with no real break in between.
A new unit sold today has to meet the federal minimum for split-system heat pumps, 14.3 SEER2 for cooling and 7.5 HSPF2 for heating. Whoever installs yours should size it to the room it serves and to these temperatures, not just to the number on the old unit it replaces.
- 8 months
- October through May, your system heats
- 4 months
- June through September, it cools
- 28°F
- the average winter night it heats against
- 82°F
- the average summer afternoon it cools against
NOAA nClimDiv, 1991–2020 normals
- Is a mini split worth it?
- For most homes it is, especially where a room runs hot or cold without ductwork to fix it. A mini split heats and cools that space directly, and here that matters both in winter, when nights average 28°F, and in summer, when afternoons hit 82°F. Since homes in Hempstead need heat or cooling every month of the year, a system that handles both jobs in one unit earns its keep. A contractor can look at the specific room or addition and tell you whether it makes sense for that space.
- How many rooms can a mini split cover?
- A single outdoor unit can run one indoor head or several, depending on the system. Multi-zone systems support more than one indoor head on a single outdoor condenser, with each head controlling its own room. The more zones you add, the more the outdoor unit has to be sized to carry them all, so a contractor needs to know which rooms and how big they are before saying what a given system can handle.
- Can a mini split heat a whole house?
- It can, if enough zones are installed to reach every room, but a single indoor head is built to heat the space it sits in, not the rest of the house. Whole-home coverage means placing a head in each area that needs heat and sizing the outdoor unit to match. Winter nights here average 28°F, so the system also has to be rated to keep up with that cold, and a contractor checks that against the specific unit before recommending it.